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Re: Unimat 3 alignment problem?
Hello:
Mr. Pete ...? ... has two videos on making test bars ...
Indeed ... I am a huge fan of Mr. Pete and I have seen both videos. 8^) He explains everything very well. That said, most if not all of Mr. Pete's videos are directed at enthusiasts who have or work with a range of tools well outside of what the Unimat 3 is and can do. He has only mentioned the Unimat 3 once, in the context of a "Buying a lathe" video and " ... only to show you that lathes come in many different sizes". In the first video you linked to, he shows a bar much like the one I will purchase next week but don't have a granite surface plate to check it. (yet) The U3 cannot pass a 20mm bar and even if I chose to get a 10mm one instead, attempting to make the centers on my 4-jaw would probably not produce an accurate enough result for the test bar to be useful as such. Thanks for your input. Best, JHM
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Re: Unimat 3 alignment problem?
Mr. Pete/Tubalcain (youtube channel mrpete222), "your youtube shop
teacher," has two videos on making test bars for aligning centers.
MACHINE SHOP TIPS #95 Making a Test Bar pt 1
MACHINE SHOP TIPS #96 Making a Test Bar pt 2
--
Elliot Nesterman
elliot@...
www.ajoure.net
"The finest jewel cannot disguise a flawed character."
|
Re: Unimat 3 alignment problem?
Hello:
... off to get a 180mm piece of precision ground/hardened 20mm steel rod ...
I postponed the 2 hr. journey to the purveyor till I had someone with a proper lathe+skill to make the centers on the rod. for me. Fortunately, I found a chap willing to do the job for a reasonable price and the bar will be ready sometime next week. In the meanwhile and having the week-end to try alternatives, I set up this:  It's a 140mm piece of ~19mm rebar dowel found in a skip and cleaned up/roughed to size some time ago. I had no aluminium stock at hand and as the rebar was probably grade 40 at best, I thought it would be easy to work on. I put another center on it, roughed it to size again, made two fine cuts and then measured the diameter at each end. With the readings taken (~ 110mm apart) and the difference calculated, I replaced the shims for the next size I calc-guessed would give me a better result.  The last of 8/10 attempts, using a pair of 0.23mm plastic shims gave these results:
- headstock end: 15.375mm
- ?tailstock end: 15.450mm
- difference: 0.075mm
- alignment error: 0.037mm
With a proper test bar at hand, I will hopefully be able to confirm these results. Q: if confirmed, is this an acceptable result for a Unimat 3? Can't leave out that all this took much longer than expected because I started using my new set of Taig "high speed steel" bits purchased from a dealer in the US. After much grievance, it dawned on me that I had thrown away US$50. It was a huge disappointment but also a lesson, at least for me. The job was finished in a jiffy using a DCMT21.51 holder/insert purchased last year at Aliexpress. I'd appreciate any comments on the results. Thanks in advance, JHM
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Re: Mill Question - should I? or shouldn't I
Hi John, regarding the 8" mini shear/ brake.
I get the wire part, I already have a micro mark rolling mill for wire.
I don't know how the accessory(s) works for sure, but I want one!? It looks like it is a $489 item new at Amazon.
I will ask if we own one; I'm pretty sure we have a brake, but don't know if it is a shearer, too.
I ordered my copper last night at 2:00 am and Amazon has already delivered it; so let the cutting experiment begin.
I did not know I was going to make a color palette, so I have I know I have some additional supplies to purchase; so I won't be
doing any test firings for a while.... this is a summer task after the silver class in June.
The light duty paper cutter is smaller, so I hope that if Plan A doesn't work, that Plan B will work.? Plan C, metal cutting shearer?
is not going to be as accurate as Plan A or Plan B.
I wish our makerspace had this kind of metal working equipment.
Tamra
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Re: Mill Question - should I? or shouldn't I
Pretty cool! And local to me. Though it's even smaller than the 12" job, and I'm pretty sure that one is too small for what I need. Besides, I just bought a steady and follower rests for my Atlas TH42... Need to stop spending $$ RFN!
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Saturday, April 22, 2023 at 04:27:35 PM CDT, John Entwistle via groups.io <jentwistle3@...> wrote:
There is an 8¡± sheer on ebay used for $100.?
|
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Show quoted text
On Apr 22, 2023, at 5:13 PM, Jkle379184 via groups.io <jkle379184@...> wrote:
?
How about something like this, a 12" metal shear, roller and brake all in one. It would do a what you want and more. This is a Eastwood brand. They are sold under many different names and with a big price spread. Just do a web search for " 12 inch 3 in 1 Metal Fabrication Brake Shear and Slip Roll"
https://www.eastwood.com/eastwood-12-inch-3-in-1-brake-shear-and-slip-roll.html
Jeff
-----Original Message-----
From: Bill in OKC too via groups.io <wmrmeyers@...>
To:
[email protected] <
[email protected]>
Sent: Sat, Apr 22, 2023 1:38 pm
Subject: Re: [Unimat] Mill Question - should I? or shouldn't I
Tamra, a shear will be easier, and there won't be lots of fine metal dust to worry about. Though you can get some pretty sharp edges shearing metal.?
You can get a pretty decent hand-held band saw from Harbor Freight. I've got the older version from before they introduced their new Bauer line. Cost about $100, and the newer Bauer version does a wider and deeper cut for $99 right now. There are a number of folks who have built stands to use them as bench tools for horizontal or vertical use.?https://m.youtube.com/results?sp=mAEA&search_query=bandsaw+stand+portable? some links for you.?
I have several hand shears, and a roller sheet that will cut up to 1/8" plate.
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
SEMPER GUMBY!
Improvise, Adapt, and Overcome.Physics doesn't care about your schedule.The only reason I know anything is because I've done it wrong enough times to START to know better.
Expect in one hand, expectorate in the other. See which one gets full first.
On Saturday, April 22, 2023 at 12:47:48 AM CDT, Tamra B <tamrabrogdon@...> wrote:
Kevin, I think this is a much safer solution... I have one that I use all the time at work.? I will order the copper and see if I can cut it with it;? I do have a few saw blades from my micro mark table saw.... oh, and looking this up, they do indicate you can cut brass up to 1/16".??
.
Lots of options here....
Sometimes, I wish for a real metal cutting bandsaw for steel, but so far, one has not landed in the shop.? I am not permitted to use dear husbands woodworking tools on metals... that will get me kicked out of the shop; but I can do this on my micromark table saw if the paper cutter doesn't work.
Tamra
Re: Mill Question - should I? or shouldn't I
That should probably work nicely for Tamra, though Ebay has one for $300 with free shipping, and they want over $400 for the same one you linked. I looked at them, but they're too small for what I need... Though I only need to make 1 drawer for my SB Heavy 10L lathe stand... Though I suspect I'll find more uses for it, whatever I finally wind up with. For the metal she wants to cut, I believe a heavy-duty paper cutter would be adequate. I've done that, myself.?
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Saturday, April 22, 2023 at 04:13:22 PM CDT, Jkle379184 via groups.io <jkle379184@...> wrote:
How about something like this, a 12" metal shear, roller and brake all in one. It would do a what you want and more. This is a Eastwood brand. They are sold under many different names and with a big price spread. Just do a web search for " 12 inch 3 in 1 Metal Fabrication Brake Shear and Slip Roll"
https://www.eastwood.com/eastwood-12-inch-3-in-1-brake-shear-and-slip-roll.html
Jeff
-----Original Message-----
From: Bill in OKC too via groups.io <wmrmeyers@...>
To: [email protected] < [email protected]>
Sent: Sat, Apr 22, 2023 1:38 pm
Subject: Re: [Unimat] Mill Question - should I? or shouldn't I
Tamra, a shear will be easier, and there won't be lots of fine metal dust to worry about. Though you can get some pretty sharp edges shearing metal.?
You can get a pretty decent hand-held band saw from Harbor Freight. I've got the older version from before they introduced their new Bauer line. Cost about $100, and the newer Bauer version does a wider and deeper cut for $99 right now. There are a number of folks who have built stands to use them as bench tools for horizontal or vertical use.?https://m.youtube.com/results?sp=mAEA&search_query=bandsaw+stand+portable? some links for you.?
I have several hand shears, and a roller sheet that will cut up to 1/8" plate.
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
SEMPER GUMBY!
Improvise, Adapt, and Overcome.Physics doesn't care about your schedule.The only reason I know anything is because I've done it wrong enough times to START to know better.
Expect in one hand, expectorate in the other. See which one gets full first.
On Saturday, April 22, 2023 at 12:47:48 AM CDT, Tamra B <tamrabrogdon@...> wrote:
Kevin, I think this is a much safer solution... I have one that I use all the time at work.? I will order the copper and see if I can cut it with it;? I do have a few saw blades from my micro mark table saw.... oh, and looking this up, they do indicate you can cut brass up to 1/16".??
.
Lots of options here....
Sometimes, I wish for a real metal cutting bandsaw for steel, but so far, one has not landed in the shop.? I am not permitted to use dear husbands woodworking tools on metals... that will get me kicked out of the shop; but I can do this on my micromark table saw if the paper cutter doesn't work.
Tamra
|
Re: Mill Question - should I? or shouldn't I - WARNING
DO NOT CLICK ON THE LINK IN BILL¡¯S MESSAGE AS IT CONTAINS MALWARE.? It tried to tell me that my machine was infected with five viruses and my McAfee antivirus was expired (which it is not).? Obviously, do not click on any of the links or messages that come up on the screen.? Just exit, and run your antivirus just to be sure. ? Jerry F. California? ?
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Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Bill in OKC too via groups.io
Sent: Saturday, April 22, 2023 10:39 AM
To: [email protected]
Subject: Re: [Unimat] Mill Question - should I? or shouldn't I? Tamra, a shear will be easier, and there won't be lots of fine metal dust to worry about. Though you can get some pretty sharp edges shearing metal.? You can get a pretty decent hand-held band saw from Harbor Freight. I've got the older version from before they introduced their new Bauer line. Cost about $100, and the newer Bauer version does a wider and deeper cut for $99 right now. There are a number of folks who have built stands to use them as bench tools for horizontal or vertical use.?https://myoutube.com/results?sp=mAEA&search_query=bandsaw+stand+portable? some links for you.? I have several hand shears, and a roller sheet that will cut up to 1/8" plate. William R. Meyers, MSgt, USAF(Ret.) Good judgement comes from experience. Experience comes from bad judgement.? Improvise, Adapt, and Overcome.
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. ? On Saturday, April 22, 2023 at 12:47:48 AM CDT, Tamra B <tamrabrogdon@...> wrote: Kevin, I think this is a much safer solution... I have one that I use all the time at work.? I will order the copper and see if I can cut it with it;? I do have a few saw blades from my micro mark table saw.... oh, and looking this up, they do indicate you can cut brass up to 1/16".??
.
Lots of options here....
Sometimes, I wish for a real metal cutting bandsaw for steel, but so far, one has not landed in the shop.? I am not permitted to use dear husbands woodworking tools on metals... that will get me kicked out of the shop; but I can do this on my micromark table saw if the paper cutter doesn't work.
Tamra
|
Re: Mill Question - should I? or shouldn't I
There is an 8¡± sheer on ebay used for $100.?
|
toggle quoted message
Show quoted text
On Apr 22, 2023, at 5:13 PM, Jkle379184 via groups.io <jkle379184@...> wrote:
?
How about something like this, a 12" metal shear, roller and brake all in one. It would do a what you want and more. This is a Eastwood brand. They are sold under many different names and with a big price spread. Just do a web search for " 12 inch 3 in 1 Metal Fabrication Brake Shear and Slip Roll"
https://www.eastwood.com/eastwood-12-inch-3-in-1-brake-shear-and-slip-roll.html
Jeff
-----Original Message-----
From: Bill in OKC too via groups.io <wmrmeyers@...>
To:
[email protected] <
[email protected]>
Sent: Sat, Apr 22, 2023 1:38 pm
Subject: Re: [Unimat] Mill Question - should I? or shouldn't I
Tamra, a shear will be easier, and there won't be lots of fine metal dust to worry about. Though you can get some pretty sharp edges shearing metal.?
You can get a pretty decent hand-held band saw from Harbor Freight. I've got the older version from before they introduced their new Bauer line. Cost about $100, and the newer Bauer version does a wider and deeper cut for $99 right now. There are a number of folks who have built stands to use them as bench tools for horizontal or vertical use.?https://m.youtube.com/results?sp=mAEA&search_query=bandsaw+stand+portable? some links for you.?
I have several hand shears, and a roller sheet that will cut up to 1/8" plate.
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
SEMPER GUMBY!
Improvise, Adapt, and Overcome.Physics doesn't care about your schedule.The only reason I know anything is because I've done it wrong enough times to START to know better.
Expect in one hand, expectorate in the other. See which one gets full first.
On Saturday, April 22, 2023 at 12:47:48 AM CDT, Tamra B <tamrabrogdon@...> wrote:
Kevin, I think this is a much safer solution... I have one that I use all the time at work.? I will order the copper and see if I can cut it with it;? I do have a few saw blades from my micro mark table saw.... oh, and looking this up, they do indicate you can cut brass up to 1/16".??
.
Lots of options here....
Sometimes, I wish for a real metal cutting bandsaw for steel, but so far, one has not landed in the shop.? I am not permitted to use dear husbands woodworking tools on metals... that will get me kicked out of the shop; but I can do this on my micromark table saw if the paper cutter doesn't work.
Tamra
Re: Mill Question - should I? or shouldn't I
How about something like this, a 12" metal shear, roller and brake all in one. It would do a what you want and more. This is a Eastwood brand. They are sold under many different names and with a big price spread. Just do a web search for " 12 inch 3 in 1 Metal Fabrication Brake Shear and Slip Roll"
https://www.eastwood.com/eastwood-12-inch-3-in-1-brake-shear-and-slip-roll.html
Jeff
-----Original Message-----
From: Bill in OKC too via groups.io <wmrmeyers@...>
To: [email protected] < [email protected]>
Sent: Sat, Apr 22, 2023 1:38 pm
Subject: Re: [Unimat] Mill Question - should I? or shouldn't I
Tamra, a shear will be easier, and there won't be lots of fine metal dust to worry about. Though you can get some pretty sharp edges shearing metal.?
You can get a pretty decent hand-held band saw from Harbor Freight. I've got the older version from before they introduced their new Bauer line. Cost about $100, and the newer Bauer version does a wider and deeper cut for $99 right now. There are a number of folks who have built stands to use them as bench tools for horizontal or vertical use.?https://m.youtube.com/results?sp=mAEA&search_query=bandsaw+stand+portable? some links for you.?
I have several hand shears, and a roller sheet that will cut up to 1/8" plate.
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
SEMPER GUMBY!
Improvise, Adapt, and Overcome.Physics doesn't care about your schedule.The only reason I know anything is because I've done it wrong enough times to START to know better.
Expect in one hand, expectorate in the other. See which one gets full first.
On Saturday, April 22, 2023 at 12:47:48 AM CDT, Tamra B <tamrabrogdon@...> wrote:
Kevin, I think this is a much safer solution... I have one that I use all the time at work.? I will order the copper and see if I can cut it with it;? I do have a few saw blades from my micro mark table saw.... oh, and looking this up, they do indicate you can cut brass up to 1/16".??
.
Lots of options here....
Sometimes, I wish for a real metal cutting bandsaw for steel, but so far, one has not landed in the shop.? I am not permitted to use dear husbands woodworking tools on metals... that will get me kicked out of the shop; but I can do this on my micromark table saw if the paper cutter doesn't work.
Tamra
|
Re: Mill Question - should I? or shouldn't I
Tamra, a shear will be easier, and there won't be lots of fine metal dust to worry about. Though you can get some pretty sharp edges shearing metal.?
You can get a pretty decent hand-held band saw from Harbor Freight. I've got the older version from before they introduced their new Bauer line. Cost about $100, and the newer Bauer version does a wider and deeper cut for $99 right now. There are a number of folks who have built stands to use them as bench tools for horizontal or vertical use.?https://m.youtube.com/results?sp=mAEA&search_query=bandsaw+stand+portable? some links for you.?
I have several hand shears, and a roller sheet that will cut up to 1/8" plate.
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Saturday, April 22, 2023 at 12:47:48 AM CDT, Tamra B <tamrabrogdon@...> wrote:
Kevin, I think this is a much safer solution... I have one that I use all the time at work.? I will order the copper and see if I can cut it with it;? I do have a few saw blades from my micro mark table saw.... oh, and looking this up, they do indicate you can cut brass up to 1/16".??
.
Lots of options here....
Sometimes, I wish for a real metal cutting bandsaw for steel, but so far, one has not landed in the shop.? I am not permitted to use dear husbands woodworking tools on metals... that will get me kicked out of the shop; but I can do this on my micromark table saw if the paper cutter doesn't work.
Tamra
|
Re: Mill Question - should I? or shouldn't I
You need to get into investment casting of precious metals! Lost Wax casting would let you make your model in easily carved wax, then you sprue it, and invest the model. Then you take the invested model and burn out the wax, and pour in your metal of choice to fill the mold and sprue... Let it cool a bit, then wash the mold off the metal casting and finish it.?
Local friend of mine makes model train parts in stainless steel using this method, but he sends the models out to be invested, burned out, and cast. For one-off castings, you can use the original model, or you can make silicone molds to make multiple copies of the model. Here's one source of info:?? And I have both of the books from Sharr Choate:?? and more general books on lost wax casting:??&??I have both of those in digital and paper copies, too.?
Then you can be just as easily distracted as I am! ;)?
Back to shears for a moment, too!?
I have a shear similar to this one, though my local tool shop was selling them for about $30 a while back.?
For doing miniature work like you do, this one might be more appropriate:?
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Saturday, April 22, 2023 at 11:50:23 AM CDT, Carl <carl.blum@...> wrote:
Hello
Tamra:
It
looks like a stack up of die block, spacer ( slot for material
) and punch guide block. The three are held together with
dowel pins and screws. They would assemble all three and then
wire cut the shape you wish. Then from a separate block they
would cut the punch, just a bit smaller than the die opening.
In the die shop we had similar die sets for making shims, fast
way to cut holes. The nice thing about wire EDM is you can
harden all the parts before cutting the shapes.
Carl.
On 4/22/2023 11:26 AM, Tamra B wrote:
I think I am cutting 50 rectangles of copper.? ? Something close
to this measurement; will see what is the max qty obtainable when
the copper is delivered.
I ordered supplies for a kit and some samples, so I think I have
44 different colors at the present time.? Sleeping on this,? I
still believe the cricut would be ideal, and the adhesive mats are
perfect for work holding, and I could draw the divisions? lines
too.
1- 11/16" x 1"
You know you used to get those sample actual plastic credit
cards in the mail, I saved mine for glue jobs, as you can easily
scrape the glue off.? I've cut shapes out of credit cards with the
cricut maker 3, and had no problems, and in my opinion the copper
measuring .8 mm is thinner then the credit cards that I
tested....so that is my first test; if that doesn't work, then I
will be at the paper cutter tomorrow, then perhaps scissors, but I
do really wish for these 50 items to be identical without the
expense of the die.
How do they slot that piece of steel for the die?? Carl, Do you
think they used a wire EDM to make the slot?? just curious, doubt
that I will ever make my own die, but it is fun to contemplate.
I wonder if Hobby Lobby or the local hardware store have 20 gauge
copper; I'm only familiar with the brass supply locally.? This is
my first steps into using cooper, and I'm in a miniature Silver
turning? vase class in June, so hopefully, I will have a good
experience with two new to me metal working projects.? 1/2"
diameter of silver rod 12" in length was more then $400 at Rio
Grande.? I did not order!??
Tamra
|
Re: Mill Question - should I? or shouldn't I
Hello
Tamra:
It
looks like a stack up of die block, spacer ( slot for material
) and punch guide block. The three are held together with
dowel pins and screws. They would assemble all three and then
wire cut the shape you wish. Then from a separate block they
would cut the punch, just a bit smaller than the die opening.
In the die shop we had similar die sets for making shims, fast
way to cut holes. The nice thing about wire EDM is you can
harden all the parts before cutting the shapes.
Carl.
On 4/22/2023 11:26 AM, Tamra B wrote:
toggle quoted message
Show quoted text
I think I am cutting 50 rectangles of copper.? ? Something close
to this measurement; will see what is the max qty obtainable when
the copper is delivered.
I ordered supplies for a kit and some samples, so I think I have
44 different colors at the present time.? Sleeping on this,? I
still believe the cricut would be ideal, and the adhesive mats are
perfect for work holding, and I could draw the divisions? lines
too.
1- 11/16" x 1"
You know you used to get those sample actual plastic credit
cards in the mail, I saved mine for glue jobs, as you can easily
scrape the glue off.? I've cut shapes out of credit cards with the
cricut maker 3, and had no problems, and in my opinion the copper
measuring .8 mm is thinner then the credit cards that I
tested....so that is my first test; if that doesn't work, then I
will be at the paper cutter tomorrow, then perhaps scissors, but I
do really wish for these 50 items to be identical without the
expense of the die.
How do they slot that piece of steel for the die?? Carl, Do you
think they used a wire EDM to make the slot?? just curious, doubt
that I will ever make my own die, but it is fun to contemplate.
I wonder if Hobby Lobby or the local hardware store have 20 gauge
copper; I'm only familiar with the brass supply locally.? This is
my first steps into using cooper, and I'm in a miniature Silver
turning? vase class in June, so hopefully, I will have a good
experience with two new to me metal working projects.? 1/2"
diameter of silver rod 12" in length was more then $400 at Rio
Grande.? I did not order!??
Tamra
|
Re: Mill Question - should I? or shouldn't I
I think I am cutting 50 rectangles of copper.? ? Something close to this measurement; will see what is the max qty obtainable when the copper is delivered.
I ordered supplies for a kit and some samples, so I think I have 44 different colors at the present time.? Sleeping on this,? I still believe the cricut would be ideal, and the adhesive mats are perfect for work holding, and I could draw the divisions? lines too.
1- 11/16" x 1"
You know you used to get those sample actual plastic credit cards in the mail, I saved mine for glue jobs, as you can easily scrape the glue off.? I've cut shapes out of credit cards with the cricut maker 3, and had no problems, and in my opinion the copper measuring .8 mm is thinner then the credit cards that I tested....so that is my first test; if that doesn't work, then I will be at the paper cutter tomorrow, then perhaps scissors, but I do really wish for these 50 items to be identical without the expense of the die.
How do they slot that piece of steel for the die?? Carl, Do you think they used a wire EDM to make the slot?? just curious, doubt that I will ever make my own die, but it is fun to contemplate.
I wonder if Hobby Lobby or the local hardware store have 20 gauge copper; I'm only familiar with the brass supply locally.? This is my first steps into using cooper, and I'm in a miniature Silver turning? vase class in June, so hopefully, I will have a good experience with two new to me metal working projects.? 1/2" diameter of silver rod 12" in length was more then $400 at Rio Grande.? I did not order!??
Tamra
|
Re: Mill Question - should I? or shouldn't I
?I have cut thin aluminum on a Minicraft table saw with a fine saw blade. You can still see these Mincraft table saw pop up on Ebay ever now and then. The variable speed control is nice.?
?https://www.worthpoint.com/worthopedia/minicraft-mb410-circular-table-saw-112382959
Jeff
-----Original Message-----
From: clankennedy2004 via groups.io <clankennedy2004@...>
To: [email protected] < [email protected]>
Sent: Sat, Apr 22, 2023 5:44 am
Subject: Re: [Unimat] Mill Question - should I? or shouldn't I
Tamara, that's tool steel. That will likely be precision ground after heat treat. You might make 1 or 2 of poor quality but if your intending a production run of 50 then I doubt the Unimat is the most efficient machine for the job so I'd say no !
On Saturday, 22 April 2023 at 10:12:43 BST, Gerald Feldman <gfeldman2904@...> wrote:
Tamra,
?
Unless it has been hardened, pure copper is quite soft and sticky (like pure Aluminum).? It will snag and clog saw blades, especially powered saws.?
?
If the copper sheets are thin, why don¡¯t you just cut it with sheet metal shears, or a paper cutter???
?
Just a suggestion.
?
Jerry F.
California
?
?
Before I assemble my unimat as a mill, can I mill this shape qty 50 rectangles with a unimat?
1-3/8" x 7/8" and 1- 11/16" x 1"
My friend has been making jewelry maybe 4 years now, specializing in enameling and she used a disc cutter to create her enamel palette...
(which is firing the enamels on copper over white flux, plain copper, silver foil, gold foil, etc, etc. to see how the color looks before you use it.)
This is likely a CNC? operation, as clearly this is very repeatable with a CNC.? Me being me, thinks 20 gauge or 24 gauge copper is extremely thin and I don't understand why I cannot cut it with a table saw?? Clearly, I know I can cut 260 brass with a jewelry saw and my own hand.? Surely a table saw is practical and fast?
I am missing something, of course the cool tool folks have every right to sell die cutters for $144, but I got these cool tool...?!??
It is probably more of an issue of how to hold something so thin, and not messing up what is holding the not even 1 mm thickness of copper or sterling.
Recently, I did an experiment to see if my Cricut Maker3 that advertises it will cut 1/16" basswood, would cut 1/32" oak veneer.? It failed.? I'm 100% sure I can cut veneer on a dremel, preac or micro mark table saw.? (Well if I would go look for the micro mark table saw, but it is still cold to be in the basement too long.)?
I should actually try and see if the Cricut will cut basswood, all that you do is tape it to the mat, and load the pattern, turn on machine and press cut, but I can't seem to concentrate long enough to do this task... traveling to the world's largest miniature show next week!
Friend told me that I did not want to cut real sterling silver with my table saw as I would loose silver to saw kerf, but the cost of copper is not nearly the cost of sterling silver.? I will reclaim my silver, I have a kiln...
I have a couple of projects that I would love to create in enamels, like a fireplace screen in miniature, or lampshade.... and OMG,? some stained glass windows! so I'm thinking of making these palettes, myself.? (I did actually attempt to enamel a silver vase, many years ago in miniature... this clearly will require some practice) flat surface, much easier to control.
Tamra
|
Re: Mill Question - should I? or shouldn't I
Hello
Tamra:
Are you
making 50 tools, or 50 slips of copper?
The
tools look like they were made by a wire EDM and would be hard
to make even one on a Unimat.
50
slips, I would cut them oversize, clamp them in a stack with
two clamps and then mill the edges including the corner
radius. This way you could control the size and they would all
match.
Carl.
On 4/22/2023 5:44 AM, clankennedy2004
via groups.io wrote:
toggle quoted message
Show quoted text
Tamara, that's tool steel.
That will likely be precision ground after heat treat. You
might make 1 or 2 of poor quality but if your intending a
production run of 50 then I doubt the Unimat is the most
efficient machine for the job so I'd say no !
Tamra,
?
Unless it
has been hardened, pure copper is quite soft and
sticky (like pure Aluminum).? It will snag and
clog saw blades, especially powered saws.?
?
If the
copper sheets are thin, why don¡¯t you just cut it
with sheet metal shears, or a paper cutter???
?
Just a
suggestion.
?
Jerry F.
California
?
?
Before I assemble my
unimat as a mill, can I mill this shape qty 50
rectangles with a unimat?
1-3/8"
x 7/8" and 1- 11/16" x 1"
My friend has been making jewelry maybe 4 years now,
specializing in enameling and she used a disc cutter
to create her enamel palette...
(which is firing the enamels on copper over white
flux, plain copper, silver foil, gold foil, etc,
etc. to see how the color looks before you use it.)
This is likely a CNC? operation, as clearly
this is very repeatable with a CNC.? Me being me,
thinks 20 gauge or 24 gauge copper is extremely thin
and I don't understand why I cannot cut it with a
table saw?? Clearly, I know I can cut 260 brass with
a jewelry saw and my own hand.? Surely a table saw
is practical and fast?
I am missing something, of course the cool tool
folks have every right to sell die cutters for $144,
but I got these cool tool...?!??
It is probably more of an issue of how to hold
something so thin, and not messing up what is
holding the not even 1 mm thickness of copper or
sterling.
Recently, I did an experiment to see if my Cricut
Maker3 that advertises it will cut 1/16" basswood,
would cut 1/32" oak veneer.? It failed.? I'm 100%
sure I can cut veneer on a dremel, preac or micro
mark table saw.? (Well if I would go look for the
micro mark table saw, but it is still cold to be in
the basement too long.)?
I should actually try and see if the Cricut will cut
basswood, all that you do is tape it to the mat, and
load the pattern, turn on machine and press cut, but
I can't seem to concentrate long enough to do this
task... traveling to the world's largest miniature
show next week!
Friend told me that I did not want to cut real
sterling silver with my table saw as I would loose
silver to saw kerf, but the cost of copper is not
nearly the cost of sterling silver.? I will reclaim
my silver, I have a kiln...
I have a couple of projects that I would love to
create in enamels, like a fireplace screen in
miniature, or lampshade.... and OMG,? some stained
glass windows! so I'm thinking of making these
palettes, myself.? (I did actually attempt to enamel
a silver vase, many years ago in miniature... this
clearly will require some practice) flat surface,
much easier to control.
Tamra
|
Re: Mill Question - should I? or shouldn't I
depending on thickness, I cut steel shimstock up to about 10 thou with normal scissors, brass too, so cant see why copper should be much different. As for holding thin stock, thats best done by stacking several sheets to a thickness you can hold and accurately work.
------ Original Message ------
Date 22/04/2023 10:12:37
Subject Re: [Unimat] Mill Question - should I? or shouldn't I
Tamra, ? Unless it has been hardened, pure copper is quite soft and sticky (like pure Aluminum).? It will snag and clog saw blades, especially powered saws.? ? If the copper sheets are thin, why don¡¯t you just cut it with sheet metal shears, or a paper cutter??? ? Just a suggestion. ? Jerry F. California ? ? Before I assemble my unimat as a mill, can I mill this shape qty 50 rectangles with a unimat?
1-3/8" x 7/8" and 1- 11/16" x 1"
My friend has been making jewelry maybe 4 years now, specializing in enameling and she used a disc cutter to create her enamel palette...
(which is firing the enamels on copper over white flux, plain copper, silver foil, gold foil, etc, etc. to see how the color looks before you use it.)
This is likely a CNC? operation, as clearly this is very repeatable with a CNC.? Me being me, thinks 20 gauge or 24 gauge copper is extremely thin and I don't understand why I cannot cut it with a table saw?? Clearly, I know I can cut 260 brass with a jewelry saw and my own hand.? Surely a table saw is practical and fast?
I am missing something, of course the cool tool folks have every right to sell die cutters for $144, but I got these cool tool...?!??
It is probably more of an issue of how to hold something so thin, and not messing up what is holding the not even 1 mm thickness of copper or sterling.
Recently, I did an experiment to see if my Cricut Maker3 that advertises it will cut 1/16" basswood, would cut 1/32" oak veneer.? It failed.? I'm 100% sure I can cut veneer on a dremel, preac or micro mark table saw.? (Well if I would go look for the micro mark table saw, but it is still cold to be in the basement too long.)?
I should actually try and see if the Cricut will cut basswood, all that you do is tape it to the mat, and load the pattern, turn on machine and press cut, but I can't seem to concentrate long enough to do this task... traveling to the world's largest miniature show next week!
Friend told me that I did not want to cut real sterling silver with my table saw as I would loose silver to saw kerf, but the cost of copper is not nearly the cost of sterling silver.? I will reclaim my silver, I have a kiln...
I have a couple of projects that I would love to create in enamels, like a fireplace screen in miniature, or lampshade.... and OMG,? some stained glass windows! so I'm thinking of making these palettes, myself.? (I did actually attempt to enamel a silver vase, many years ago in miniature... this clearly will require some practice) flat surface, much easier to control.
Tamra
|
Re: Mill Question - should I? or shouldn't I
Tamara, that's tool steel. That will likely be precision ground after heat treat. You might make 1 or 2 of poor quality but if your intending a production run of 50 then I doubt the Unimat is the most efficient machine for the job so I'd say no !
On Saturday, 22 April 2023 at 10:12:43 BST, Gerald Feldman <gfeldman2904@...> wrote:
Tamra, ? Unless it has been hardened, pure copper is quite soft and sticky (like pure Aluminum).? It will snag and clog saw blades, especially powered saws.? ? If the copper sheets are thin, why don¡¯t you just cut it with sheet metal shears, or a paper cutter??? ? Just a suggestion. ? Jerry F. California ?
From: [email protected] [mailto:[email protected]] On Behalf Of Tamra B
Sent: Friday, April 21, 2023 8:58 PM
To: [email protected]
Subject: [Unimat] Mill Question - should I? or shouldn't I ? Before I assemble my unimat as a mill, can I mill this shape qty 50 rectangles with a unimat?
1-3/8" x 7/8" and 1- 11/16" x 1"
My friend has been making jewelry maybe 4 years now, specializing in enameling and she used a disc cutter to create her enamel palette...
(which is firing the enamels on copper over white flux, plain copper, silver foil, gold foil, etc, etc. to see how the color looks before you use it.)
This is likely a CNC? operation, as clearly this is very repeatable with a CNC.? Me being me, thinks 20 gauge or 24 gauge copper is extremely thin and I don't understand why I cannot cut it with a table saw?? Clearly, I know I can cut 260 brass with a jewelry saw and my own hand.? Surely a table saw is practical and fast?
I am missing something, of course the cool tool folks have every right to sell die cutters for $144, but I got these cool tool...?!??
It is probably more of an issue of how to hold something so thin, and not messing up what is holding the not even 1 mm thickness of copper or sterling.
Recently, I did an experiment to see if my Cricut Maker3 that advertises it will cut 1/16" basswood, would cut 1/32" oak veneer.? It failed.? I'm 100% sure I can cut veneer on a dremel, preac or micro mark table saw.? (Well if I would go look for the micro mark table saw, but it is still cold to be in the basement too long.)?
I should actually try and see if the Cricut will cut basswood, all that you do is tape it to the mat, and load the pattern, turn on machine and press cut, but I can't seem to concentrate long enough to do this task... traveling to the world's largest miniature show next week!
Friend told me that I did not want to cut real sterling silver with my table saw as I would loose silver to saw kerf, but the cost of copper is not nearly the cost of sterling silver.? I will reclaim my silver, I have a kiln...
I have a couple of projects that I would love to create in enamels, like a fireplace screen in miniature, or lampshade.... and OMG,? some stained glass windows! so I'm thinking of making these palettes, myself.? (I did actually attempt to enamel a silver vase, many years ago in miniature... this clearly will require some practice) flat surface, much easier to control.
Tamra
|
Re: Mill Question - should I? or shouldn't I
Tamra, ? Unless it has been hardened, pure copper is quite soft and sticky (like pure Aluminum).? It will snag and clog saw blades, especially powered saws.? ? If the copper sheets are thin, why don¡¯t you just cut it with sheet metal shears, or a paper cutter??? ? Just a suggestion. ? Jerry F. California ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Tamra B
Sent: Friday, April 21, 2023 8:58 PM
To: [email protected]
Subject: [Unimat] Mill Question - should I? or shouldn't I? Before I assemble my unimat as a mill, can I mill this shape qty 50 rectangles with a unimat?
1-3/8" x 7/8" and 1- 11/16" x 1"
My friend has been making jewelry maybe 4 years now, specializing in enameling and she used a disc cutter to create her enamel palette...
(which is firing the enamels on copper over white flux, plain copper, silver foil, gold foil, etc, etc. to see how the color looks before you use it.)
This is likely a CNC? operation, as clearly this is very repeatable with a CNC.? Me being me, thinks 20 gauge or 24 gauge copper is extremely thin and I don't understand why I cannot cut it with a table saw?? Clearly, I know I can cut 260 brass with a jewelry saw and my own hand.? Surely a table saw is practical and fast?
I am missing something, of course the cool tool folks have every right to sell die cutters for $144, but I got these cool tool...?!??
It is probably more of an issue of how to hold something so thin, and not messing up what is holding the not even 1 mm thickness of copper or sterling.
Recently, I did an experiment to see if my Cricut Maker3 that advertises it will cut 1/16" basswood, would cut 1/32" oak veneer.? It failed.? I'm 100% sure I can cut veneer on a dremel, preac or micro mark table saw.? (Well if I would go look for the micro mark table saw, but it is still cold to be in the basement too long.)?
I should actually try and see if the Cricut will cut basswood, all that you do is tape it to the mat, and load the pattern, turn on machine and press cut, but I can't seem to concentrate long enough to do this task... traveling to the world's largest miniature show next week!
Friend told me that I did not want to cut real sterling silver with my table saw as I would loose silver to saw kerf, but the cost of copper is not nearly the cost of sterling silver.? I will reclaim my silver, I have a kiln...
I have a couple of projects that I would love to create in enamels, like a fireplace screen in miniature, or lampshade.... and OMG,? some stained glass windows! so I'm thinking of making these palettes, myself.? (I did actually attempt to enamel a silver vase, many years ago in miniature... this clearly will require some practice) flat surface, much easier to control.
Tamra
|
Re: Mill Question - should I? or shouldn't I
Kevin, I think this is a much safer solution... I have one that I use all the time at work.? I will order the copper and see if I can cut it with it;? I do have a few saw blades from my micro mark table saw.... oh, and looking this up, they do indicate you can cut brass up to 1/16".??
.
Lots of options here....
Sometimes, I wish for a real metal cutting bandsaw for steel, but so far, one has not landed in the shop.? I am not permitted to use dear husbands woodworking tools on metals... that will get me kicked out of the shop; but I can do this on my micromark table saw if the paper cutter doesn't work.
Tamra
|
Re: Mill Question - should I? or shouldn't I
Kevin Groenke @ PersonMakeObject
Hey Tamra, I'll cut 1/8" and thicker non-ferrous metals on my tablesaw any day, but thinner stock is sketchy because there's only one tooth in the material at a time. Some time ago I had to cut some copper and recalled the paper cutter I had used a few minutes before. ??, that's like a metal shear I realized (duh!). I would think with some creative fixturing, it would be pretty easy to cut your 20-24ga copper quite accurately and efficiently with a simple guitilline style paper cutter. If you don't have one, consider this a great opportunity to pick one up and I assure you will find a myriad of uses for it. Cheers and make on!? -kevin
Before I assemble my unimat as a mill, can I mill this shape qty 50 rectangles with a unimat?
1-3/8" x 7/8" and 1- 11/16" x 1"
My friend has been making jewelry maybe 4 years now, specializing in enameling and she used a disc cutter to create her enamel palette...
(which is firing the enamels on copper over white flux, plain copper, silver foil, gold foil, etc, etc. to see how the color looks before you use it.)
This is likely a CNC? operation, as clearly this is very repeatable with a CNC.? Me being me, thinks 20 gauge or 24 gauge copper is extremely thin and I don't understand why I cannot cut it with a table saw?? Clearly, I know I can cut 260 brass with a jewelry saw and my own hand.? Surely a table saw is practical and fast?
I am missing something, of course the cool tool folks have every right to sell die cutters for $144, but I got these cool tool...?!??
It is probably more of an issue of how to hold something so thin, and not messing up what is holding the not even 1 mm thickness of copper or sterling.
Recently, I did an experiment to see if my Cricut Maker3 that advertises it will cut 1/16" basswood, would cut 1/32" oak veneer.? It failed.? I'm 100% sure I can cut veneer on a dremel, preac or micro mark table saw.? (Well if I would go look for the micro mark table saw, but it is still cold to be in the basement too long.)?
I should actually try and see if the Cricut will cut basswood, all that you do is tape it to the mat, and load the pattern, turn on machine and press cut, but I can't seem to concentrate long enough to do this task... traveling to the world's largest miniature show next week!
Friend told me that I did not want to cut real sterling silver with my table saw as I would loose silver to saw kerf, but the cost of copper is not nearly the cost of sterling silver.? I will reclaim my silver, I have a kiln...
I have a couple of projects that I would love to create in enamels, like a fireplace screen in miniature, or lampshade.... and OMG,? some stained glass windows! so I'm thinking of making these palettes, myself.? (I did actually attempt to enamel a silver vase, many years ago in miniature... this clearly will require some practice) flat surface, much easier to control.
Tamra
|
Bill in OKC too
John Entwistle
Carl
