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Re: Tool Post Grinder
how does it mount on the Atlas 10"?
On Sunday, July 23, 2023 at 01:51:13 PM EDT, Bill in OKC too via groups.io <wmrmeyers@...> wrote:
Woke up earlier this morning than I intended to, but not bad for how my gut has been feeling the last few days. Looked at the tool post grinder I've been watching on ebay for a few days, and saw the price had dropped from $224 to $201, with $15 shipping, and 48 minutes to go... In a moment of madness, I bought it. It's a Themac, with no labels or plates, so no idea which model. Cheapest one new is around a couple of grand, and it supposedly runs, but needs a new cord. Be interesting to figure out which model it is. Downloaded the drawings and such from the manufacturer website, has dimensions that should help me narrow it down. Hopefully it won't be too big to use on my 10" lathes. Also wonder if I could improvise a mount to use it for surface grinding small parts like 1-2-3 blocks and the like... Haven't even got it yet and trying to figure out how to stretch the capabilities. ;) Just a note, the seller has quite a bit of stuff for Atlas Craftsman lathes and other interesting stuff...? Also bought a Morse 1-1/2" die holder and a more or less matching tap holder fro the same seller. Prices are not excruciatinglly high..?? I'll let y'all know how well packed and how quickly shipped and such once I know more, but a lot of their stuff seems to be about 10% off right now.? Bill in OKC Bill in OKC |
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Re: Graham Mfg Co Double Knurling tool
Bryan, I have a hex (production) turret that has 5/8" holes for the tools. I wonder if that knurl tool isn't intended to be used in such a turret and fed in axially along the lathe centerline?? ?Bill in Boulder? On Sun, Jul 23, 2023 at 12:19?PM Bryan <byoumans80@...> wrote:
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Graham Mfg Co Double Knurling tool
Along with an Atlas 10F I purchased, the owner had 3 boxes of assorted items that he believed went with the Atlas.? He was the second owner and didnt know much about it.? As I have made my way through the items, I came across this tool. Many of the items are not for the lathe and I am scratching my head with this one. Is this knurling tool meant for installation in the tail stock?? The tail is not tapered, it is 5/8" round the entire length on mine, and is centered where the two knurled intersect.?? I loaded my pic also here is an example (the only example) I could find of the tool online.? The item is sold but the picture is better quality than my phone pic.? Any help appreciated. Bryan |
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Tool Post Grinder
Woke up earlier this morning than I intended to, but not bad for how my gut has been feeling the last few days. Looked at the tool post grinder I've been watching on ebay for a few days, and saw the price had dropped from $224 to $201, with $15 shipping, and 48 minutes to go... In a moment of madness, I bought it. It's a Themac, with no labels or plates, so no idea which model. Cheapest one new is around a couple of grand, and it supposedly runs, but needs a new cord. Be interesting to figure out which model it is. Downloaded the drawings and such from the manufacturer website, has dimensions that should help me narrow it down. Hopefully it won't be too big to use on my 10" lathes. Also wonder if I could improvise a mount to use it for surface grinding small parts like 1-2-3 blocks and the like... Haven't even got it yet and trying to figure out how to stretch the capabilities. ;)
Just a note, the seller has quite a bit of stuff for Atlas Craftsman lathes and other interesting stuff...? Also bought a Morse 1-1/2" die holder and a more or less matching tap holder fro the same seller. Prices are not excruciatinglly high..?? I'll let y'all know how well packed and how quickly shipped and such once I know more, but a lot of their stuff seems to be about 10% off right now.? Bill in OKC Bill in OKC |
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Re: Recommendations for shims for leveling lathe??
I three pointed my Atlas lathe years ago and it doesn¡¯t turn a taper. The makers designed and built an exceptional product that holds tolerance all these many years later. I would assume most lathe beds are square until proven otherwise. ?Start with trueing up the tailstock. Most likely that¡¯s the issue. ? Mike? |
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Re: Recommendations for shims for leveling lathe??
¿ªÔÆÌåÓýThe reason I suggest trueing up the tailstock first is that it is relatively easy to do. If you do that and can cut a Rollie¡¯s Dad test bar to a tolerance that you are happy with, then you are done. ? Sent from for Windows ? |
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Re: Recommendations for shims for leveling lathe??
¿ªÔÆÌåÓýI think he needs the shim stock in the next week or two. Hoping for a yard sale is not a viable option
Get From: [email protected] <[email protected]> on behalf of Dave Clements <clements@...>
Sent: Sunday, July 16, 2023 10:53:23 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Recommendations for shims for leveling lathe?? ?
A set of feeler gauges from a yard sale for a dollar or so. Dusty On 7/16/2023 1:10 PM, jf08056 via groups.io wrote:
I often use aluminum flashing for shim stock.? You can get a pack of 10 flat 5x7 sheets for $3.50 at home depot.? What I have is 0.010" thick and it cuts easily with a scissors.? If I need to go around a bold I cut a V in it.? Unlike aluminum cans the flashing is already flat but the can stock is probably thinner if you need it. |
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Re: Recommendations for shims for leveling lathe??
¿ªÔÆÌåÓýBe creative. Start with a fender washer and end with a piece of wax paper. There is no way to know what you will need as it depends on the flatness and rigidity of the mounting surface in addition to the straightness of the lathe.If you want officially certified shim stock, go to an independent hardware store like Ace, True Value, or Do It Best. They sell an assortment of brass shim for less. Don't ask the kid staring at his phone. Ask someone with gray hair. Harbor Freight sells feeler gauge sets cheap. On 7/16/2023 11:11 AM, Jim Erdman via
groups.io wrote:
I'm finally getting my 12x24 Craftsman lathe set up and will need to do some shimming differently than before, and I'm looking for recommendations for a source of good shims, maybe an assortment so I have what I need on hand.? I see McMaster-Carr has a set for under $30 with 2 each of 13 thicknesses.? What has been your experience with number and thickness of shims that might be needed?? I need to do some more measuring using feeler gauges to see for sure what total thickness I may need, but looking for possible sources of shim stock. |
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Re: Recommendations for shims for leveling lathe??
¿ªÔÆÌåÓýA set of feeler gauges from a yard sale for a dollar or so. Dusty On 7/16/2023 1:10 PM, jf08056 via
groups.io wrote:
I often use aluminum flashing for shim stock.? You can get a pack of 10 flat 5x7 sheets for $3.50 at home depot.? What I have is 0.010" thick and it cuts easily with a scissors.? If I need to go around a bold I cut a V in it.? Unlike aluminum cans the flashing is already flat but the can stock is probably thinner if you need it. |
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Re: Speakin of Machinist levels and tunit up the lathe
¿ªÔÆÌåÓýI have 3 of those Starrett levels now , I was lucky enough to buy they right . it sure is handy not having to move the level . I just set them in place & walk away for a while , after their at peace with the lathe then I work on twist . I came up with a what most folks would say over complicated way to adjust my South Bend . Hopefully I'll be moving it to the new place in the next week or so & start the process all over again . animal On 7/16/23 5:07 PM, Greg via groups.io
wrote:
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Re: Recommendations for shims for leveling lathe??
¿ªÔÆÌåÓýJon, ? I worked on mine until a sheet of paper on the low side of the 6¡± level made it the high side.??? ? Good enough cause the lathe wasn¡¯t watching the bubble J ? Greg |
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Re: Speakin of Machinist levels and tunit up the lathe
¿ªÔÆÌåÓýI nabbed an ebay cheap precision level a few years back.? It may or may not be as good as they say, but I¡¯m not on a boat and it sure helped my lathe.? One sheet of paper will take the 6¡± level pretty much lock to lock, it¡¯s sensitive enough. ? I hate to even comment about how far out mine was, the bench under it warped some from the weight or simply wasn¡¯t level when I built it.? Worlds of difference after leveling.? Yes some new supports for under the bench top are planned, then a re-level. ? Another recent finding, last weekend to be exact.? Stumbled onto a YouTube on head stock preload.? Now I¡¯ve had the lathe for probably 30 years.? I thought I had set the preload but guess I didn¡¯t do a great job.? Saw these guys taking massive cuts. I couldn¡¯t get a clean cut on one half that size and don¡¯t even talk to be about using a cutoff tool. ? While it didn¡¯t show any end play, according to the video after half an hour the bearings were supposed to get warm (way warmer than I would probably like) and mine didn¡¯t at all.? Now I¡¯ve been using some good spindle oil instead of the 3-in-1 and that probably helps, but¡? I¡¯ve done a full ? turn of the nut and it¡¯s just barley (2-4 degrees?) warming after 30-50 minutes of work.? Will take another shot at it and see if just a bit more might be helpful. ? Also went to a quick change wedge tool post (thank you all for the sizing there) and I just took some large cuts for me and still have a really nice finish.? Threaded some parts 25.4mm x 0.75mm ( J ) that came out nice too.? Cut-off is now easy and clean. ? Sharing cause I don¡¯t want anyone to think they are hoggin all the mistakes J ? Greg ? |
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Re: Recommendations for shims for leveling lathe??
Harbor Freight sells a kit of U-shaped shims.? They are intended for auto body work.? The thinnest is .016" and the thickest is .125".? I think the cost is about $10.
Shimming my Craftsman 12x24 lathe is a challenge.? The motor hangs off the bed and imparts a variable twist.? I decided good enough is good enough and I stopped hitting myself in the head with the precision level. |
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Re: Speakin of Machinist levels
¿ªÔÆÌåÓý??? ??? I'm pretty simple If I need to borrow something more than once I look into buying it .If I haven't had to borrow one in the last 5 years I don't need one . I hope ya had something in mind when you bought that straight edge ? My surface plate is only a 9 x 12 , so far I've been ok animal On 7/16/23 3:11 PM, Bill Williams
wrote:
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Re: Speakin of Machinist levels
Be careful Animal, this can lead you into unforeseen?situations! I ended up buying measuring tools to the point that I now own a 4 foot granite?straightedge that I can barely carry. And strangely enough no one? seems to want to know how straight their lathe bed is!? ?Bill in Boulder On Sun, Jul 16, 2023 at 4:05?PM Bill Williams via <BWMSBLDR1=[email protected]> wrote:
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Re: Speakin of Machinist levels
Be careful animal, On Sun, Jul 16, 2023 at 3:52?PM mike allen <animal@...> wrote: eventually the lathe leveling conversation leads to machinist levels . |
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Speakin of Machinist levels
eventually the lathe leveling conversation leads to machinist levels .
Having more than one level can certainly speed things up . If you have any pawn shops in your area they can be a good source for levels & other machinist tools for real good prices . I picked up a 6" Starrett level for $ 40.00 a few months back . Got a Mit 0-1 digital mic for $25.00 & a Best Test indicator for another 25 & a SPI vertical reading test indicator for another 20 . It's hit or miss , but if I'm in the big city & drive by a pawn shop I usually head in & see what they got . animal |
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Re: Recommendations for shims for leveling lathe??
IMO and nothing more, a perfect mounting would entail a rigid, two point mount under the headstock, that could be shimmed for leveling and a single point center mount at the tailstock rigidly attached to the lathe and easily adjusted in height for lengthwise leveling and with screw(s) that could remove any twist in the bed. In my real world I observe that the lathe is cutting straight, that a precision level shows no twist, and the lathe bed does not run up or down hill. Then I go back to working/playing!? ?Bill in Boulder CO On Sun, Jul 16, 2023 at 1:27?PM Andrei <calciu1@...> wrote:
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Re: Recommendations for shims for leveling lathe??
¿ªÔÆÌåÓýThat is the hard way of doing it. Fix the bed first. Then worry about the tailstock.?
If your home's foundation is crooked, the walls are going to be crooked too. Same with lathes. The bed is the foundation.?
Get From: [email protected] <[email protected]> on behalf of rfmarchi1 <rfmarchi@...>
Sent: Sunday, July 16, 2023 3:11:01 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Recommendations for shims for leveling lathe?? ?
First of all, don¡¯t assume that the bed is twisted. A lathe with a straight bed does not need to be level. My suggestion is to fasten the bed to the bench with only three mounting points and washers under the mounting pads to keep it slightly up off the benchtop. Then use the Rollie¡¯s Dad method to check the lathe for tailstock alignment and twist. Most likely, the tailstock is not centered on the spindle axis causing it to cut a taper. A dial indicator mounted in the spindle can help get the tailstock in the neighborhood of the spindle axis of rotation¡ maybe even within a half thou, or so, if you¡¯re lucky. Then turn both ends of the longest test bar you can mount between centers to check for taper. If you have a taper that you can¡¯t live with, keep adjusting the offset screws on the tailstock to try to remove the taper. If you still have a taper you can¡¯t live with, you have a twisted bed and need to use a fourth mounting bolt, a precision level and shims to force the bed back into a straight condition. My 10F has been running on three mounting bolts for 10 years and turns true diameters within 0.001¡±over the full length of the bed. Remember that even a monster rigid lathe like the Mornach 10EE uses a three point mounting system. For a hobby lathe you don¡¯t take heavy enough cuts to torque the bed. Even if you do take a hefty roughing? cut, you will almost always take a light cut to get to finish dimension. Most small lathes beds get twisted by bolting them to a stiff uneven surface with four bolts, not because the ways are not true. Finally, most jobs needing sub 1/1000¡± precision are done within a few inches of the headstock where bed twist is not a problem. Don¡¯t over think the problem. ? Sent from for Windows ? |
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Re: Recommendations for shims for leveling lathe??
¿ªÔÆÌåÓýFirst of all, don¡¯t assume that the bed is twisted. A lathe with a straight bed does not need to be level. My suggestion is to fasten the bed to the bench with only three mounting points and washers under the mounting pads to keep it slightly up off the benchtop. Then use the Rollie¡¯s Dad method to check the lathe for tailstock alignment and twist. Most likely, the tailstock is not centered on the spindle axis causing it to cut a taper. A dial indicator mounted in the spindle can help get the tailstock in the neighborhood of the spindle axis of rotation¡ maybe even within a half thou, or so, if you¡¯re lucky. Then turn both ends of the longest test bar you can mount between centers to check for taper. If you have a taper that you can¡¯t live with, keep adjusting the offset screws on the tailstock to try to remove the taper. If you still have a taper you can¡¯t live with, you have a twisted bed and need to use a fourth mounting bolt, a precision level and shims to force the bed back into a straight condition. My 10F has been running on three mounting bolts for 10 years and turns true diameters within 0.001¡±over the full length of the bed. Remember that even a monster rigid lathe like the Mornach 10EE uses a three point mounting system. For a hobby lathe you don¡¯t take heavy enough cuts to torque the bed. Even if you do take a hefty roughing? cut, you will almost always take a light cut to get to finish dimension. Most small lathes beds get twisted by bolting them to a stiff uneven surface with four bolts, not because the ways are not true. Finally, most jobs needing sub 1/1000¡± precision are done within a few inches of the headstock where bed twist is not a problem. Don¡¯t over think the problem. ? Sent from for Windows ? |
Bill in OKC too
Mike Lutz
Jon M