Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
On Sat, Jan 13, 2024 at 10:48 AM, Sam Reaves wrote:
I remember seeing a bombsight type device that can be added to a drill press?to give you a crosshair for that.
On the HomebrewPCBs list, what people came up with to drill holes in PCBs is to mount a drill below the table, with a laser dot or crosshair projected on top, and raise the drill from the bottom. ? --
Steve Greenfield AE7HD WRWU703 CN87oa??
http://www.ae7hd.com
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Re: AILTech 7514/09 and 13611
Ah, yes. I've now got that one, but was really looking for the /09
details, and the 13611...
Thanks,
73,
Julian, G3YGF
On 15/01/2024 17:16, vk2bea via
groups.io wrote:
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Did you see this ???
Michael
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Re: AILTech 7514/09 and 13611
Did you see this ???
Michael
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AILTech 7514/09 and 13611
I'm looking for a manual for the AIL/Eaton 7514 option 09 PANFI, and the AIL 13611 Noise Figure meter/receivers?
Just wondered if anyone still has one?
Julian, G3YGF
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Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
etch, then laminate, then drill worked very well for me.? 30K RPM from a Proxxon hand piece (I used the 120 volt one, I think) carbide drills, and it goes right through a PC board.
For metal work, I'd just go CNC, spot drill the holes if desired, then likely use screw machine sized drills.? Since it's CNC, the only limitation ought to be the repeatability.
Harvey
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On 1/14/2024 2:21 PM, Sam Reaves wrote: Well Harvey that does work and offers a possibility?of using the 91S just to mark the holes rather than to drill them totally through and that would work like a punch to guide the final drilling.
Sam Reaves
On Sun, Jan 14, 2024 at 12:37?PM Harvey White <madyn@...> wrote:
I'd be tempted to reverse the order of the steps.? Etch first, then
drill and route.
Harvey
On 1/14/2024 12:22 PM, Sam Reaves wrote:
> Well I was going to use my LPKF 91S to do the drilling and
routing and
> then toner transfer followed by toner tranfer foil like PulsarFx
used
> to use. If there are issues with the holes after that then there is
> always the Sharpie. In general this process would be for low res
> boards anyway. Other boards I'll just send to China.
>
> Sam
>
> On Sun, Jan 14, 2024, 11:05 AM Reginald Beardsley via groups.io
<>
> <> <pulaskite@...> wrote:
>
>? ? ?Sam,
>
>? ? ?I have solved my problem for a total cost including table of
$50.
>? ? ?I'm not about to make my own PCBs. This is for drilling
enclosures.
>
>? ? ?Pick a reference point and zero the DRO at that point. Then use
>? ? ?the DRO to locate all the other holes. A wiggler is the cheapest
>? ? ?location method, but electronic XYZ setters are common and
easy to
>? ? ?DIY.
>
>? ? ?Toner transfer is limited in size by the distortion. I'd suggest
>? ? ?you measure the transfer *very* carefully over the longest
hole to
>? ? ?hole distance and adjust appropriately to minimize the error for
>? ? ?all the holes lest you have pads next to the holes between
the traces.
>
>? ? ?Have Fun!
>? ? ?Reg
>
>
>? ? ?On Saturday, January 13, 2024 at 11:57:52 PM CST, Sam Reaves
>? ? ?<sam.reaves@...> wrote:
>
>
>? ? ?Reg,
>
>? ? ?One option would be to use the CNC to drill all of the holes and
>? ? ?then lightly sand the PCB for the toner transfer process. I'm
>? ? ?going to try that as the drilling process is the most intensive
>? ? ?process for DIY PCB's.
>
>? ? ?I looked around for the cross hair and found that (It's really
>? ? ?expensive) but you have to take it out for each measurement
so for
>? ? ?PCB work that would be a PITA.
>
>? ? ?I found a laser one on Amazon. I wonder if the focus would be
>? ? ?sharp enough to drill PCB's. I think I would leave the toner
on if
>? ? ?using toner transfer?so that the laser does not reflect. Cheap
>? ? ?enough though. I may get one and try it out.
>
>
<>
>? ?
?<
<>>
>
>? ? ?Sam Reaves
>? ? ?ARS W3OHM
>
>
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
Well Harvey that does work and offers a possibility?of using the 91S just to mark the holes rather than to drill them totally through and that would work like a punch to guide the final drilling.
On Sun, Jan 14, 2024 at 12:37?PM Harvey White < madyn@...> wrote: I'd be tempted to reverse the order of the steps.? Etch first, then
drill and route.
Harvey
On 1/14/2024 12:22 PM, Sam Reaves wrote:
> Well I was going to use my LPKF 91S to do the drilling and routing and
> then toner transfer followed by toner tranfer foil like PulsarFx used
> to use. If there are issues with the holes after that then there is
> always the Sharpie. In general this process would be for low res
> boards anyway. Other boards I'll just send to China.
>
> Sam
>
> On Sun, Jan 14, 2024, 11:05 AM Reginald Beardsley via
> <> <pulaskite=[email protected]> wrote:
>
>? ? ?Sam,
>
>? ? ?I have solved my problem for a total cost including table of $50.
>? ? ?I'm not about to make my own PCBs. This is for drilling enclosures.
>
>? ? ?Pick a reference point and zero the DRO at that point. Then use
>? ? ?the DRO to locate all the other holes. A wiggler is the cheapest
>? ? ?location method, but electronic XYZ setters are common and easy to
>? ? ?DIY.
>
>? ? ?Toner transfer is limited in size by the distortion. I'd suggest
>? ? ?you measure the transfer *very* carefully over the longest hole to
>? ? ?hole distance and adjust appropriately to minimize the error for
>? ? ?all the holes lest you have pads next to the holes between the traces.
>
>? ? ?Have Fun!
>? ? ?Reg
>
>
>? ? ?On Saturday, January 13, 2024 at 11:57:52 PM CST, Sam Reaves
>? ? ?<sam.reaves@...> wrote:
>
>
>? ? ?Reg,
>
>? ? ?One option would be to use the CNC to drill all of the holes and
>? ? ?then lightly sand the PCB for the toner transfer process. I'm
>? ? ?going to try that as the drilling process is the most intensive
>? ? ?process for DIY PCB's.
>
>? ? ?I looked around for the cross hair and found that (It's really
>? ? ?expensive) but you have to take it out for each measurement so for
>? ? ?PCB work that would be a PITA.
>
>? ? ?I found a laser one on Amazon. I wonder if the focus would be
>? ? ?sharp enough to drill PCB's. I think I would leave the toner on if
>? ? ?using toner transfer?so that the laser does not reflect. Cheap
>? ? ?enough though. I may get one and try it out.
>
>? ? ?
>? ? ?<>
>
>? ? ?Sam Reaves
>? ? ?ARS W3OHM
>
>
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
I'd be tempted to reverse the order of the steps.? Etch first, then drill and route.
Harvey
toggle quoted message
Show quoted text
On 1/14/2024 12:22 PM, Sam Reaves wrote: Well I was going to use my LPKF 91S to do the drilling and routing and then toner transfer followed by toner tranfer foil like PulsarFx used to use. If there are issues with the holes after that then there is always the Sharpie. In general this process would be for low res boards anyway. Other boards I'll just send to China.
Sam
On Sun, Jan 14, 2024, 11:05 AM Reginald Beardsley via groups.io <> <pulaskite@...> wrote:
Sam,
I have solved my problem for a total cost including table of $50.
I'm not about to make my own PCBs. This is for drilling enclosures.
Pick a reference point and zero the DRO at that point. Then use
the DRO to locate all the other holes. A wiggler is the cheapest
location method, but electronic XYZ setters are common and easy to
DIY.
Toner transfer is limited in size by the distortion. I'd suggest
you measure the transfer *very* carefully over the longest hole to
hole distance and adjust appropriately to minimize the error for
all the holes lest you have pads next to the holes between the traces.
Have Fun!
Reg
On Saturday, January 13, 2024 at 11:57:52 PM CST, Sam Reaves
<sam.reaves@...> wrote:
Reg,
One option would be to use the CNC to drill all of the holes and
then lightly sand the PCB for the toner transfer process. I'm
going to try that as the drilling process is the most intensive
process for DIY PCB's.
I looked around for the cross hair and found that (It's really
expensive) but you have to take it out for each measurement so for
PCB work that would be a PITA.
I found a laser one on Amazon. I wonder if the focus would be
sharp enough to drill PCB's. I think I would leave the toner on if
using toner transfer?so that the laser does not reflect. Cheap
enough though. I may get one and try it out.
<>
Sam Reaves
ARS W3OHM
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
Well I was going to use my LPKF 91S to do the drilling and routing and then toner transfer followed by toner tranfer foil like PulsarFx used to use. If there are issues with the holes after that then there is always the Sharpie. In general this process would be for low res boards anyway. Other boards I'll just send to China.
Sam
On Sun, Jan 14, 2024, 11:05 AM Reginald Beardsley via <pulaskite= [email protected]> wrote: Sam,
I have solved my problem for a total cost including table of $50. I'm not about to make my own PCBs. This is for drilling enclosures.
Pick a reference point and zero the DRO at that point. Then use the DRO to locate all the other holes. A wiggler is the cheapest location method, but electronic XYZ setters are common and easy to DIY.
Toner transfer is limited in size by the distortion. I'd suggest you measure the transfer *very* carefully over the longest hole to hole distance and adjust appropriately to minimize the error for all the holes lest you have pads next to the holes between the traces.
Have Fun!
Reg
On Saturday, January 13, 2024 at 11:57:52 PM CST, Sam Reaves < sam.reaves@...> wrote:
Reg,
One option would be to use the CNC to drill all of the holes and then lightly sand the PCB for the toner transfer process. I'm going to try that as the drilling process is the most intensive process for DIY PCB's.
I looked around for the cross hair and found that (It's really expensive) but you have to take it out for each measurement so for PCB work that would be a PITA.?
I found a laser one on Amazon. I wonder if the focus would be sharp enough to drill PCB's. I think I would leave the toner on if using toner transfer?so that the laser does not reflect. Cheap enough though. I may get one and try it out.
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
Sam,
I have solved my problem for a total cost including table of $50. I'm not about to make my own PCBs. This is for drilling enclosures.
Pick a reference point and zero the DRO at that point. Then use the DRO to locate all the other holes. A wiggler is the cheapest location method, but electronic XYZ setters are common and easy to DIY.
Toner transfer is limited in size by the distortion. I'd suggest you measure the transfer *very* carefully over the longest hole to hole distance and adjust appropriately to minimize the error for all the holes lest you have pads next to the holes between the traces.
Have Fun!
Reg
On Saturday, January 13, 2024 at 11:57:52 PM CST, Sam Reaves <sam.reaves@...> wrote:
Reg,
One option would be to use the CNC to drill all of the holes and then lightly sand the PCB for the toner transfer process. I'm going to try that as the drilling process is the most intensive process for DIY PCB's.
I looked around for the cross hair and found that (It's really expensive) but you have to take it out for each measurement so for PCB work that would be a PITA.?
I found a laser one on Amazon. I wonder if the focus would be sharp enough to drill PCB's. I think I would leave the toner on if using toner transfer?so that the laser does not reflect. Cheap enough though. I may get one and try it out.
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
One problem with pre-drilled holes and then toner transfer may be incomplete toner transfer around the periphery of the holes.
Professional manual PC drillers drill from the bottom, with the top of the board magnified and presented on a ground glass screen.?? Center the hole in the cross hairs and press the button.
You can make the same thing with a TV camera, monitor (find dashed tape for crosshairs, or any other method), you'll need a linear stage, one to two inches of travel is sufficient, and then a good quality hand piece for a drill (or whatever pleases you). I would not use a dremel, the collet is aluminum and not steel, the bearings are not very precise.
Use an arduino with a cheap driver to run a stepper motor for the linear stage.
It won't be as cheap as might be liked, but once aligned, will be sturdy.? You should be able to place a hole within .005 or better.? (eyeball estimate).
?I built one for PC board use, which worked well enough to accurately drill alignment holes for top and bottom boards, which were then epoxied together.? Parallax killed the use of a normal drill press for precision work.
Harvey
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On 1/14/2024 12:57 AM, Sam Reaves wrote: Reg,
One option would be to use the CNC to drill all of the holes and then lightly sand the PCB for the toner transfer process. I'm going to try that as the drilling process is the most intensive process for DIY PCB's.
I looked around for the cross hair and found that (It's really expensive) but you have to take it out for each measurement so for PCB work that would be a PITA.
I found a laser one on Amazon. I wonder if the focus would be sharp enough to drill PCB's. I think I would leave the toner on if using toner transfer?so that the laser does not reflect. Cheap enough though. I may get one and try it out.
<>
Sam Reaves
ARS W3OHM
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
Reg,
One option would be to use the CNC to drill all of the holes and then lightly sand the PCB for the toner transfer process. I'm going to try that as the drilling process is the most intensive process for DIY PCB's.
I looked around for the cross hair and found that (It's really expensive) but you have to take it out for each measurement so for PCB work that would be a PITA.?
I found a laser one on Amazon. I wonder if the focus would be sharp enough to drill PCB's. I think I would leave the toner on if using toner transfer?so that the laser does not reflect. Cheap enough though. I may get one and try it out.
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
My Clausing lathe and mill will get DROs in due time. But this will be my 'go to' for things like small boxes and front panels as it will be configured specifically for that all the time whereas the mill may require a good bit of set up depending upon the last job I did on it.
Normal machine shop tolerance is 0.005" which is slightly more than the 0.1 mm resolution of the plastic calipers. The plastic DROs are more than accurate enough for panels.
The green XY table cost under $40, so the table and calipers for the DRO setup cost less than $50. I used the little HF drill press simply because Dad left me several including one he took apart and reassembled upside down mounted on one of the support columns in his shop minus the base plate.
Have Fun!
Reg
On Saturday, January 13, 2024 at 10:50:55 AM CST, Harvey White <madyn@...> wrote:
I could suggest either CNC, or a mill with large DRO's.
Harvey
On 1/13/2024 9:36 AM, Reginald Beardsley via groups.io wrote: > I can do traditional machinist's layouts just fine which has > previously been my regular method. What I can no longer do is get the > drill bit on the punch mark accurately. I miss by 0.5 mm or less, but > it adds up to be obvious to the naked eye with several jacks in line. > > My eyes can't be fixed, so I have to change methods to accommodate the > reality of old age. > > As my sister says, > > It is what it is, > Reg > > > On Saturday, January 13, 2024 at 06:00:33 AM CST, Alan > < g8lco1@...> wrote: > > > A well known method of locating holes is to use perf or vero board as > a drilling template, double sided tape can be used to fix the drill > guide to the substrate. You can mark the holes to be used with a > spirit marker then remove the markings with IPA. You can get DIL hole > patterns perfect with the ready made and very accurate templates. > > A good method of laying out panels is to print a paper template using > your favourite? CAD package. HP inkjets are generally very accurate > and don't need re-scaling to produce accurate templates. You can stick > the template to the panel then drill through centres. > > ?I generally use a laser to produce acrylic front panels, laser > engraving produces very good lettering at 600/1200 d.p.i. , vector > cutting allows holes and outline cutting. You can spray paint the back > of clear acrylic then cut through the paint layer with a laser. > > ?There are two-layer engraving laminates with a thin top cap layer and > a contrasting colour underneath, the laser removes the cap? with very > sharp lines to produce lettered and perforated panels that are very > durable and pro looking. > > Regards, Alan G8LCO. > > > >> ------------------------------------------------------------------------ >> Groups.io Links: >> >> You receive all messages sent to this group. >> >> View/Reply Online (#2091) >> < /g/Test-Equipment-Design-Construction/message/2091> >> | Reply To Group >> <mailto: [email protected]?subject=Re:%20%5BTest%20Equipment%20Design%20%26%20Construction%5D%20Fw%3A%20%5Bprojects-in-metal%5D%20A%20%245%202%20axis%20DRO%20for%20a%20small%20drill%20press> >> | Reply To Sender >> <mailto:pulaskite@...?subject=Private:%20Re:%20%5BTest%20Equipment%20Design%20%26%20Construction%5D%20Fw%3A%20%5Bprojects-in-metal%5D%20A%20%245%202%20axis%20DRO%20for%20a%20small%20drill%20press> >> | Mute This Topic < /mt/103685824/436304> | New Topic >> < /g/Test-Equipment-Design-Construction/post> >> Your Subscription >> < /g/Test-Equipment-Design-Construction/editsub/436304> >> | Contact Group Owner >> <mailto: [email protected]> | >> Unsubscribe >> < /g/Test-Equipment-Design-Construction/leave/11633253/436304/412166407/xyzzy> >> [g8lco1@... <mailto:g8lco1@...>] >> >
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Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
Sam,
Thanks for the tips. I'll look into those. The crosshair tool is yet another tool change. There are a lot of tools for setting absolute reference positions.
Have Fun!
Reg
On Saturday, January 13, 2024 at 12:48:08 PM CST, Sam Reaves <sam.reaves@...> wrote:
Hi Reg,
I remember seeing a bombsight type device that can be added to a drill press?to give you a crosshair for that. I have to see if I can figure?out where I saw that.
Also for doing front panels are you familiar?with the program from Abacom called FrontDesigner3.0 for designing?and making panels? You might want to have a look at it, It is a very reasonable 49.9 Euro (19% less if you aren't in the EU).
They also have a very good PCB layout program called SprintLayout6.0. I have used their programs for close to 20 years now, The easiest, bug free and quick to learn programs I have ever used. Highly recommended.
Both of these programs can output to a PDF or a laser and you can easily adjust the scaling to be exact.
FrontDesigner3.0:
SprintLayout6.0:
Sam W3OHM
On Fri, Jan 12, 2024 at 11:15?AM Reginald Beardsley via <pulaskite= [email protected]> wrote: This is not an electronics project per se, but as it is specifically intended for drilling front panels, etc. I thought I'd give a heads up on the radio oriented lists. Travel is slightly larger than 3" x 6" which should suffice for getting holes in a straight line.
Have Fun!
Reg
----- Forwarded Message ----- Sent: Thursday, January 11, 2024 at 02:35:04 PM CST Subject: [projects-in-metal] A $5 2 axis DRO for a small drill press
It's?been?a?long?time?since?I?posted?anything,?but?my?shop??now?has?lighting?and?by?summer?should?be?fully?operational?after?being?"storage?only"?for?7-8?years?as?I?was?inundated?by?Dad's?stuff.??The?drill?press?being?one?of?several?he?left?me.
A?pair?of?$2?"carbon?fiber?composite"?0.1?mm/0.1"?digital??calipers?and?some?bits?of?aluminum?angle?and?screws.Three?holes?drilled?and?tapped?8-32?in?the?vise.
This?setup?is?for?drilling?PCBs?and?enclosure?holes?for?switches,?knobs,?etc?for?small?electronic?projects.
Obviously,?one?of?many?such?"DRO"?setups,?though?I?think?I?can?claim?the?cheapest?at?least?for?the?next?few?minutes.??The?Clausing?lathe?and?mill?will?be?getting?nicer?readouts.
Have?Fun!
Reg
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
Hi Reg,
I remember seeing a bombsight type device that can be added to a drill press?to give you a crosshair for that. I have to see if I can figure?out where I saw that.
Also for doing front panels are you familiar?with the program from Abacom called FrontDesigner3.0 for designing?and making panels? You might want to have a look at it, It is a very reasonable 49.9 Euro (19% less if you aren't in the EU).
They also have a very good PCB layout program called SprintLayout6.0. I have used their programs for close to 20 years now, The easiest, bug free and quick to learn programs I have ever used. Highly recommended.
Both of these programs can output to a PDF or a laser and you can easily adjust the scaling to be exact.
FrontDesigner3.0:
SprintLayout6.0:
Sam W3OHM
On Fri, Jan 12, 2024 at 11:15?AM Reginald Beardsley via <pulaskite= [email protected]> wrote: This is not an electronics project per se, but as it is specifically intended for drilling front panels, etc. I thought I'd give a heads up on the radio oriented lists. Travel is slightly larger than 3" x 6" which should suffice for getting holes in a straight line.
Have Fun!
Reg
----- Forwarded Message ----- Sent: Thursday, January 11, 2024 at 02:35:04 PM CST Subject: [projects-in-metal] A $5 2 axis DRO for a small drill press
It's?been?a?long?time?since?I?posted?anything,?but?my?shop??now?has?lighting?and?by?summer?should?be?fully?operational?after?being?"storage?only"?for?7-8?years?as?I?was?inundated?by?Dad's?stuff.??The?drill?press?being?one?of?several?he?left?me.
A?pair?of?$2?"carbon?fiber?composite"?0.1?mm/0.1"?digital??calipers?and?some?bits?of?aluminum?angle?and?screws.Three?holes?drilled?and?tapped?8-32?in?the?vise.
This?setup?is?for?drilling?PCBs?and?enclosure?holes?for?switches,?knobs,?etc?for?small?electronic?projects.
Obviously,?one?of?many?such?"DRO"?setups,?though?I?think?I?can?claim?the?cheapest?at?least?for?the?next?few?minutes.??The?Clausing?lathe?and?mill?will?be?getting?nicer?readouts.
Have?Fun!
Reg
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
Herman,
Beautiful work. Thanks for the comment about using a center drill for the initial hole. They are *much* stiffer. The only real issue is there is very little daylight between the table and the chuck. So a selection of screw machine length drills will probably be required. Though I could switch to a regular drill press once the holes were spotted. Holes I can hit. Can't do punch marks any longer.
As for how to extend the range there is the possibility that someone makes a plastic 8" or 12" caliper though I have not seen one. Extending the range merely requires drilling and tapping a 3rd hole in the table and a knurled screw to make it easy to move. Just rezero the caliper after a move.
I have a 6" x 24" Clausing 8520 mill i can use for larger work. But as my interest is small DIY T&M or QRP projects, the caliper length really isn't a limitation.
I bought the plastic calipers for the sole reason they were crazy cheap and likely quite accurate. Coming from temu, if they were not, once they hit my B&S Johansson gauge block set they would have been a full refund from temu. They were dead on.
Have Fun!
Reg
On Saturday, January 13, 2024 at 10:11:27 AM CST, Herman van Rees via groups.io <herman@...> wrote:
Hi Reg, That is my favorite manner of drilling. Centering with a punch & hammer is very difficult te be spot-on. I use the X-Y coordinate system, calculate the positions and start with the X & Y display on 0 at the corner of the front panel.
The results is perfect, first drilling with a center drill as used on my lathe.
See picture and final result on QRZ.com on my webpage there.
w. greetings,
Herman,
PA0VRE ![]()
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Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
FWIW The larger DROs cost more than the drill press and table did. I don't need .001" locations for instrument and radio panels. 0.1 mm (<0.005") is good enough.
On Saturday, January 13, 2024 at 10:52:16 AM CST, Harvey White <madyn@...> wrote:
There are larger DRO's available, as well as remote readout sensors for
milling machines.
Not $2.50, though.
Harvey
On 1/13/2024 11:10 AM, Mikek wrote:
> Where are you getting digital calipers for $2.50?
> ?I like the idea.
> Now how how can we make it adjustable, to use on longer throws?
> ? I know that would limit the use to 6 in cuts, but if you leave the
> drill bit and the hole and move the
> caliper adjustment, it could work.
> ???????????????????? Mikek
>
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
Mine came from temu. My sister and I have had a steady stream of stuff from temu arriving for many months. Very good customer support.
On Saturday, January 13, 2024 at 11:04:48 AM CST, Mikek <amdx@...> wrote:
On Sat, Jan 13, 2024 at 08:10 AM, Mikek wrote: Where are you getting digital calipers for $2.50? ?To answer my own question, I see Temu has them for $1.99, they are carbon fiber, not SS. I have not used Temu and read various levels of customer service, some say it's great others say terrible. "Do you feel lucky" ????????????? Mikek
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
On Sat, Jan 13, 2024 at 08:10 AM, Mikek wrote:
Where are you getting digital calipers for $2.50?
?To answer my own question, I see Temu has them for $1.99, they are carbon fiber, not SS. I have not used Temu and read various levels of customer service, some say it's great others say terrible. "Do you feel lucky" ????????????? Mikek
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
There are larger DRO's available, as well as remote readout sensors for milling machines.
Not $2.50, though.
Harvey
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Show quoted text
On 1/13/2024 11:10 AM, Mikek wrote: Where are you getting digital calipers for $2.50?
?I like the idea.
Now how how can we make it adjustable, to use on longer throws?
? I know that would limit the use to 6 in cuts, but if you leave the drill bit and the hole and move the
caliper adjustment, it could work.
???????????????????? Mikek
|
Re: Fw: [projects-in-metal] A $5 2 axis DRO for a small drill press
I could suggest either CNC, or a mill with large DRO's.
Harvey
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On 1/13/2024 9:36 AM, Reginald Beardsley via groups.io wrote: I can do traditional machinist's layouts just fine which has previously been my regular method. What I can no longer do is get the drill bit on the punch mark accurately. I miss by 0.5 mm or less, but it adds up to be obvious to the naked eye with several jacks in line.
My eyes can't be fixed, so I have to change methods to accommodate the reality of old age.
As my sister says,
It is what it is,
Reg
On Saturday, January 13, 2024 at 06:00:33 AM CST, Alan <g8lco1@...> wrote:
A well known method of locating holes is to use perf or vero board as a drilling template, double sided tape can be used to fix the drill guide to the substrate. You can mark the holes to be used with a spirit marker then remove the markings with IPA. You can get DIL hole patterns perfect with the ready made and very accurate templates.
A good method of laying out panels is to print a paper template using your favourite? CAD package. HP inkjets are generally very accurate and don't need re-scaling to produce accurate templates. You can stick the template to the panel then drill through centres.
?I generally use a laser to produce acrylic front panels, laser engraving produces very good lettering at 600/1200 d.p.i. , vector cutting allows holes and outline cutting. You can spray paint the back of clear acrylic then cut through the paint layer with a laser.
?There are two-layer engraving laminates with a thin top cap layer and a contrasting colour underneath, the laser removes the cap? with very sharp lines to produce lettered and perforated panels that are very durable and pro looking.
Regards, Alan G8LCO.
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