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Re: ELS conversion
There has been a loot of discussion on this at /g/E-Leadscrew
Depending on what parts of the original system that you have you can replace the arm that the change gears go on with a motor mound and a couple of toothed belts, some have mounted the motor on the tailstock end. I would recommend the belt because it prevents a bunch of potential problems and also gives you a misalignment coupler? and the reduction. |
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My Homemade Threading Tool
Sidebottom
I have a Craftsman/Atlas lathe model 101.07403. Great little machine. A friend gave it to me along with multiple accessories including the milling attachment. I spent approximately 25 years as a Journeyman Tool & Die Maker/ Machinist and also programmed CNC mills and lathes and wire EDM. So, needless to say Im having a ball tinkering with it. I saw a gadget on YouTube and decided to make one for my lathe for threading. Mainly for anything smaller than 1/2 inch thread. Faster than swapping out gears. So,?Finished the threading tool for the lathe. The die is held in the piston by a 10-32 cap screw. I put the tailstock close and lock it down. Crank it in till it starts threading, and it does the rest. As it threads it pulls the piston through the sleeve. There is a stop screw I watch to prevent over travel. My lathe doesn't have reverse, so I have to back it out by hand. If the thread needs to be longer than the length of travel for the piston, I loosen the tailstock and slide it forward till the piston is at its starting point in the sleeve. There is a spring in the sleeve to load pressure when starting. Works great. Video is too large to email, so uploaded it to YouTube. Link below.? |
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Re: ELS conversion
Thanks Mike!! AtomicELS does not use the X axis, I am intending to add the X axis but could use a lot of help. I have a really?good program for moving an axis that JIm Larsen wrote (and I modified) on the Accelstepper?forum. The Accelstepper forum is currently banned, too bad it is a great resource.? Ralph On Tue, Jan 23, 2024 at 3:42?PM mike allen <animal@...> wrote:
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Re: Making a New, Elliptical Compound Thrust Plate/Large Dial Upgrade
Thank you.? Changes the entire feel of the compound slide.? Making the elliptical thrust plate was the key to being able to incorporated the bearings, etc.? I did a similar large dial upgrade for a friend's SB 9 a few years ago, so I looked back at my drawings and photos.?
This is actually just temporary though, as I plan on installing direct read dials on both slides in the future.? and a came from .? The direct read dial has 200 graduations.? The cross slide dial currently on the the cross slide has 100, so once the direct read is installed, I'll take that 100 graduated dial and adapt it to the compound.? I will require making another thrust plate, as the boss is larger, so I'm keeping the mounting plate from this one.? I think I'll make the cross slide extended by lengthening the boss, which will proved room to include a thrust bearing on both directions.? The size of the boss on this compound precluded using two thrust bearings, so I'm using the ball bearing as both.? Once all that is completed, I think I'll make this compound adaptation available.? Should be a direct replacement fit on another MK2 lathe at least, maybe the 618 as well.? Rick |
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Re: Making a New, Elliptical Compound Thrust Plate/Large Dial Upgrade
What a marvelous?piece of work! Such an upgrade to the original it is a serious temptation.? ?Bll in Boulder On Tue, Jan 23, 2024 at 1:18?PM Rick Kruger <krugerr@...> wrote: Operation has been fixed, by installing a thrust bearing and a ball bearing, inboard and outboard of the thrust plate and a sleeve for the graduated dial to ride on.? The sleeve corrects the tendancy of the dial to cant and bind the rotation and provides something for the hex nut to clamp against as preload.? Compound is snug and smooth, the only thing to deal with now is the backlash, some other time.? |
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Re: ELS conversion
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-------- Original message -------- From: "Rui Dantas via groups.io" <rudantas@...> Date: 1/23/24 12:29 PM (GMT-08:00) Subject: Re: [atlas-craftsman IO] ELS conversion On Jan 23, 2024, at 1:05?PM, Greg via groups.io <gregj@...> wrote:
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Re: ELS conversion
开云体育??? ??? This ones probably one of the simplest ones I've seen & seems to do everything . It's a free group & the folks that designed it are in the group & help is not far away . pretty sure if I do one it's gonna be this one . Info is in the files section . ??? /g/AtomicELS ??? animal On 1/23/24 12:28 PM, Rui Dantas via
groups.io wrote:
I have been watching some YouTube and there is on system some guy made and he had all kinds of programmable boards on it. Seemed very complicated but he apparently has all the parts for sale to the public just don’t know how I would program the boards… I’m just a hobbyist? |
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Re: ELS conversion
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On Jan 23, 2024, at 1:05?PM, Greg via groups.io <gregj@...> wrote:
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Re: ELS conversion
开云体育I have been watching some YouTube and there is on system some guy made and he had all kinds of programmable boards on it. Seemed very complicated but he apparently has all the parts for sale to the public just don’t know how I would program the boards… I’m just a hobbyist?On Jan 23, 2024, at 1:25?PM, Ralph Hulslander <rhulslander@...> wrote:
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Re: Making a New, Elliptical Compound Thrust Plate/Large Dial Upgrade
Operation has been fixed, by installing a thrust bearing and a ball bearing, inboard and outboard of the thrust plate and a sleeve for the graduated dial to ride on.? The sleeve corrects the tendancy of the dial to cant and bind the rotation and provides something for the hex nut to clamp against as preload.? Compound is snug and smooth, the only thing to deal with now is the backlash, some other time.?
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Re: ELS conversion
Rui, my Craftsman 12x36 has a direct drive motorized Z axis. Not sure what you mean by "all the electronics"? Eventually I might get around to doing a motorized X axis. The hardest part is deciding how you are going to motorize the axis, and implementing your decision. It took me years after following all of the discussions?on the web to actually?doing it. Let me know any questions you might have or if you just want encouragement.? I did it all by myself without anyone to talk to, that made it tough. Until I got to the programming part where I got some great help. Once you get the motor mounted I have a great stand alone program for motorizing an axis. On Tue, Jan 23, 2024 at 12:39?PM Rui Dantas via <rudantas=[email protected]> wrote: Hello all! Has anyone done an electronic lead screw conversion on their atlas lathes? |
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Re: ELS conversion
开云体育Have, yes… installed – no.? ? But boy do I want it… But a bathroom remodel has taken precedence. ? The real issue is mounting the motor in a convenient place and getting it connected.? The plan is to use a timing belt and a 2:1 or 3:1 reduction from the ELS motor. ? I got a Step direction integrated servo.? So power and a few signals is all that’s needed to the motor and of course the encoder to the spindle.? ? Directions are good but you need to be able to solder and depending on the computer used, it can be a little daunting to get it programmed.? ? Greg |
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Making a New, Elliptical Compound Thrust Plate/Large Dial Upgrade
Making an Elliptical New Compound Thrust Plate/Large Dial Upgrade ? I'm installing larger dials both the cross slide and compound on a Craftsman 6" MK2 lathe and had the need to make a new thrust plate for the compound because the original is cast and the boss were the dial base needs to mount is tapered due the the draft. The thrust plate is elliptical and I wasn't sure how I was going to do until popped up.? I grasped the concept quickly and did not actually watch the video through the machining process.? Had I done so, I might have been dissuaded as it looked too complicated.? Start of the project, with the rotary table mount plate and the thrust plate stock pinned to it for turning the boss. Originals are on the left, new dial on the right. ?Turned boss.
There is a problem here, however.? It doesn’t work smoothly and will require some remedial work.? The new dial cants when the set screw is locked.? I think because the set screw is off-center and it clamps on the transition between solid shaft and the start of threads on the end for the handle/nuts.? ? More on this to come. |
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Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
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Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
开云体育??? ??? Good deal , sometimes yer the windshield , sometimes yer the bug . ??? animal On 1/19/24 3:18 PM, Rick Kruger wrote:
On Fri, Jan 19, 2024 at 12:28 PM, Bill in OKC too wrote: |
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Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
开云体育Overhauling machine tools can be a big part of the fun, or it can be a real drag.? I've done a few also.? I bought a couple of the asian "mini-" machines new, but the newest since then is my 1986 Select knee mill. It was well enough used but did not require any remedial work.? The one that took the most work was a pre-WWII Rivett 1020, two years of extensive repairs, remanufacturing of parts and even some castings/machining, but it was worth it.? When I moved 7 yrs ago, it got toppled on its face, so did not make the move.? While it was getting repaired, I came into a 1946 motor generator Monarch 10EE with a Newall DRO that had recently been fully restored, so all I had to do was get it here and set up.? I have and have had DROs on mills but never a lathe.? Pretty sweet.?Rick On 1/19/2024 5:05 PM, Bill in OKC too
via groups.io wrote:
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Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
Congradulations,?
On Friday, January 19, 2024 at 06:18:50 PM EST, Rick Kruger <krugerr@...> wrote:
On Fri, Jan 19, 2024 at 12:28 PM, Bill in OKC too wrote: Well, color me embarressed...? Thanks for pushing on this guys... Didn't look very dirty from the outside... A bit of Kroil and Q-tips freed it.? Cleaned the pocket, good bit of crude in there. I tried to lose the ball twice and nearly succeeded, had it neatly in my hand, then dropped it.? Looked for it for a while but gave up and fished a replacement one out of my supply of steel balls and put it back together.? Still came out.? Spent more time looking for the original, on the floor with the flashlight, like the CSI guys.? Voila! Getting it back on the spindle was a task.? Both the key and ball liked to escape and hide. All back together, with some improvement.? It doesn't slip out in the second highest speed now, but does still at the highest.? I'll try it with one of the new springs when the order from eBay arrives.? I've located on spring on McM-C that is close the original spring (1/8" OD, 3/8" length, 0.021" wire dia.) but is longer (1") so I can trim to some lengths greater than the stock spring. |
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Re: And now.......reversible
David, how are you seeing "The motor wires connect to both the 3-6 pair and the 1-4 pair, but with reversed polarity on the 1-4 pair."? You are correct in that that would work but the diagram does not show it. Ralph On Fri, Jan 19, 2024 at 1:16?PM David Beierl <dbeierl@...> wrote:
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Re: Drive Coupler Not Staying Engaged, Craftsman 101.21200 MK2
The only machine tool I have here that was new or well-overhauled when I got it is my Atlas TH42, and it needed a good hosing down with WD-40. :) I have overhauled a couple more, and one of them needs to be overhauled again. :( Someday I'd like to buy something that is ready to work as soon as it lands on the bench. Not holding my breath waiting. ;) 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! 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 Friday, January 19, 2024 at 05:18:35 PM CST, Rick Kruger <krugerr@...> wrote:
On Fri, Jan 19, 2024 at 12:28 PM, Bill in OKC too wrote: Well, color me embarressed...? Thanks for pushing on this guys... Didn't look very dirty from the outside... A bit of Kroil and Q-tips freed it.? Cleaned the pocket, good bit of crude in there. I tried to lose the ball twice and nearly succeeded, had it neatly in my hand, then dropped it.? Looked for it for a while but gave up and fished a replacement one out of my supply of steel balls and put it back together.? Still came out.? Spent more time looking for the original, on the floor with the flashlight, like the CSI guys.? Voila! Getting it back on the spindle was a task.? Both the key and ball liked to escape and hide. All back together, with some improvement.? It doesn't slip out in the second highest speed now, but does still at the highest.? I'll try it with one of the new springs when the order from eBay arrives.? I've located on spring on McM-C that is close the original spring (1/8" OD, 3/8" length, 0.021" wire dia.) but is longer (1") so I can trim to some lengths greater than the stock spring. |
Bill in OKC too