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I Need a 3 Jaw Chuck
Hey guys, I have a 12" (101.07403) I've reached a level of frustration having on a 4 jaw chuck and am ready to get a 3 jaw.? I don't mind setting up the work in a 4 jaw but removing the work to check something and then having to re-chuck it is getting tiresome. There are a few on ebay currently of different brands with the 1 1/2- 8 threads.? (Atlas, Cushman, etc) Should I try one of the older used chucks or try a new Shars or something similar or stick with an old one?? I would like to find an Atlas 6" diam chuck but they aren't cheap.? Am I rolling the dice either direction with accuracy? Thanks for the input and advice. -Jody |
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Re: Need Pulley for Craftsman Speed-ReducingAttachment
开云体育??????????????????????????????? FWIW you might try to find some old school Kasenite as the current offering is not as effective IMO. But there might well be someone close by that still has a half full can. I am hoarding mine but am susceptible to a polite request!????????????????? Bill in Boulder CO USA ? Sent from for Windows 10 ? From: exerpd+groupsio@...
Sent: Saturday, April 18, 2020 11:38 AM To: [email protected] Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-ReducingAttachment ? Dave Matticks – May just use some Brownell’s and try the jaws first to see how I like it.? Heat jaw face to cherry red, dip in the case hardening, re-heat to cherry red for a couple of minutes, quench in oil, clean up…………? See what happens. -- ? |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育If it's low carbon like 1018ish it won't respond. All that'll happen is it'll get hot until you quench, then it'll be cool. Only difference will be color. Dave? Sent from my T-Mobile 4G LTE Device 开云体育-------- Original message -------- From: Andrei <calciu1@...> Date: 4/18/20 12:15 (GMT-06:00) Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment
Bruce, it is a hand vise. Harden it with the torch and oil or water, depending on your steel.
I would harden the whole part, not just the jaw, because it is small enough.
Typos are courtesy of autocorrect.
From: [email protected] <[email protected]> on behalf of Dave Matticks <dpm100@...>
Sent: Saturday, April 18, 2020 12:53:20 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment ?
Bruce,
Awesome job on the hand vise!
Where the heck did you find a left hand thread wing nut to pin onto the screw?
Doesn't matter, I like it right down to the handle!
Regarding heat treating: what did you make the jaws out of??
Low carbon? Only option is case hardening.
Anything you might do at home with a torch is likely to give only a very shallow depth. Might call a commercial heat treating place near you to inquire about carburizing.
Explain your situation, they "might" give you a deal.
Dave
On April 17, 2020 at 12:29 PM exerpd+groupsio@... wrote: ? |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Dave Matticks – I was not able to find a left hand wing nut.? I used Fusion 360 to do the drawings.? Instead I purchased a hand full of right hand wing nuts from McMaster-Karr in the next smaller size.? Then just drilled it out and re-threaded in left hand 3/8”.? The body and jaws are 1018 steel.? I have done some case hardening of small gun parts.? Don’t know whether to case harden just the jaw faces or the whole thing?? It is just a hand vise after all.? May just use some Brownell’s and try the jaws first to see how I like it.? Heat jaw face to cherry red, dip in the case hardening, re-heat to cherry red for a couple of minutes, quench in oil, clean up…………? See what happens. --Bruce Varner |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育
Angle set by compound, toolbit is nothing more than a parting/grooving tool.
Nothing special but it works.
For a one off even on a bigger machine I'd still do it the same way, easier than making a couple form tools! Nice finish comes free.
Dave
On April 18, 2020 at 9:58 AM Jody <jp4lsu@...> wrote: ? |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育
Bruce, it is a hand vise. Harden it with the torch and oil or water, depending on your steel.
I would harden the whole part, not just the jaw, because it is small enough.
Typos are courtesy of autocorrect.
From: [email protected] <[email protected]> on behalf of Dave Matticks <dpm100@...>
Sent: Saturday, April 18, 2020 12:53:20 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment ?
Bruce,
Awesome job on the hand vise!
Where the heck did you find a left hand thread wing nut to pin onto the screw?
Doesn't matter, I like it right down to the handle!
Regarding heat treating: what did you make the jaws out of??
Low carbon? Only option is case hardening.
Anything you might do at home with a torch is likely to give only a very shallow depth. Might call a commercial heat treating place near you to inquire about carburizing.
Explain your situation, they "might" give you a deal.
Dave
On April 17, 2020 at 12:29 PM exerpd+groupsio@... wrote: ? |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育
Your kid is wise, Animal. But there is TP at the store. Found it at Safeway yesterday. Limit 1 pack per purchase. No need to panic.
Typos are courtesy of autocorrect.
From: [email protected] <[email protected]> on behalf of mike allen <animal@...>
Sent: Saturday, April 18, 2020 1:07:40 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment ?
??? ??? my kid says the way to save TP is to just shower right after ya use the can ??? ??? animal On 4/18/2020 10:04 AM, Dave Matticks wrote:
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育??? ??? my kid says the way to save TP is to just shower right after ya use the can ??? ??? animal On 4/18/2020 10:04 AM, Dave Matticks
wrote:
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育
I was thinking about a smaller one as a little paperweight for postage stamps, hardly use 'em anymore though.
This one's more suited to my ration of 3 squares of TP a day.
Maybe tomorrow I'l make a tiny one for fun!
Dave
On April 18, 2020 at 11:29 AM mike allen <animal@...> wrote: ? |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育
Bruce,
Awesome job on the hand vise!
Where the heck did you find a left hand thread wing nut to pin onto the screw?
Doesn't matter, I like it right down to the handle!
Regarding heat treating: what did you make the jaws out of??
Low carbon? Only option is case hardening.
Anything you might do at home with a torch is likely to give only a very shallow depth. Might call a commercial heat treating place near you to inquire about carburizing.
Explain your situation, they "might" give you a deal.
Dave
On April 17, 2020 at 12:29 PM exerpd+groupsio@... wrote: ? |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育??? ??? looks sharp Dave , now ya have a backup pull start for yer phone for when the drive dies ??? ??? animal On 4/18/2020 7:19 AM, Dave Matticks
wrote:
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育??? ? don't remember what pulley yer makin , but don't forget
material for a arbor if ya plan to use one . ??? ??? animal On 4/18/2020 7:39 AM,
exerpd+groupsio@... wrote:
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育Good job Dave.? I have been watching this topic periodically.? What did you use to the angle? -Jody Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone 开云体育-------- Original message -------- From: Dave Matticks <dpm100@...> Date: 4/18/20 9:20 AM (GMT-06:00) Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment Just for my own entertainment this morning and also maybe help someone out a little! Aside from the turning and facing part, done with one tool. Dimensions are just arbitrary, plug in the real ones.? Sample is concept only but it is kind of cute. Couple pics.? One big key to success here is know where the machine is! Dave? Sent from my T-Mobile 4G LTE Device |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Ok, Ok, I am stoked to do this.? I can get the aluminum locally @ the metal shop I use (Metal By The Foot, Kansas City).? They have 5” 6061 for $10 & change per inch + obviously no shipping charges.? Will contact them on Monday to ensure they have it in stock at the moment.? They have a very good system for the COVID19 problem.? You call & order & pay for the material over the phone.? They tell you when it will be ready.? When you get there, you call them again & say you are there in such & such a vehicle.? You pop the trunk, they come out & place it in the trunk with the receipt.? Off you go…………. -- Bruce Varner |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育Just for my own entertainment this morning and also maybe help someone out a little! Aside from the turning and facing part, done with one tool. Dimensions are just arbitrary, plug in the real ones.? Sample is concept only but it is kind of cute. Couple pics.? One big key to success here is know where the machine is! Dave? Sent from my T-Mobile 4G LTE Device |
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Re: Craftsman 101.07301 with a 383.22970 chuck
开云体育The pin spanner is the better idea, as a simple tommy bar may eventually wallow out the hole in the chuck ring and slip when tightening. ?If the pin spanner encompasses a full half circle, or close to it, there is no way it can slip.Many years ago, I made a set of two pin spanners for the chuck on a Sherline lathe. ?Two, because there was a hole in the chuck body in addition to the hole in the tightening ring. ?Much better than two tommy bars. On Apr 17, 2020, at 8:37 PM, tony wilson <tonyewilson@...> wrote:
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育BTW, I’m fairly sure the job can be done with two tools, and a darned close job with one!Picture a parting tool. I thing we all agree that the center could be done with that, and the sides towards the smaller pulley done with the same tool, but setting the compound at the angle of the V and plunging with the compound The other side, or all of it can also be done with a similar method Lautard described for turning balls. Do the math where the corner (left or right, depending on which side) meets the groove. Plunge in. Now do the math say shifted over .010 (or however small a step you want), plunge again, lather, rinse, repeat. You’ll end up with a bunch of steps The BOTTOM corners are at the right spots. Now get out a file, and get rid of the peaks. The smaller the shift, the smaller the peaks, and the more accurate you’ll be -- ? 73 de KG2V Charlie On Apr 17, 2020, at 7:22 PM, Robert Downs via groups.io <wa5cab@...> wrote:
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