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Re: Collet chucks
RC Machines used to sell them
Jeff -----Original Message-----
From: William Macy via groups.io <wkmacy@...> To: [email protected]; alderj601@... Sent: Fri, Aug 12, 2022 2:08 pm Subject: Re: [Unimat] Collet chucks Yes M12x1.0 collet chucks and which take ER 16 collets are available. They¡¯re made in China, naturally. You can find them on EBay. You will need to open up the spindle bore to rem,ove thje male threads for a distance of 10mm or so. This is to allow the chuck to bottom fully on the spindle. You¡¯ll also probaby want to drill a hole throught chuck near the spindle end for a tommy bar to tighten or loosen the chuck body. I found the chuck body of mine to be hardened so I got the desired size (3mm?) carbide drill from Amazon. It worked just fine. I also happened to have short carbide boring bit to enlarge the chuck bore.
Best wishes, Bill
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Re: Collet chucks
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On 12 Aug 2022, at 19:09, William Macy via groups.io <wkmacy@...> wrote:
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Re: Collet chucks
¿ªÔÆÌåÓýYes M12x1.0 collet chucks and which take ER 16 collets are available. They¡¯re made in China, naturally. You can find them on EBay. You will need to open up the spindle bore to rem,ove thje male threads for a distance of 10mm or so. This is to allow the chuck to bottom fully on the spindle. You¡¯ll also probaby want to drill a hole throught chuck near the spindle end for a tommy bar to tighten or loosen the chuck body. I found the chuck body of mine to be hardened so I got the desired size (3mm?) carbide drill from Amazon. It worked just fine. I also happened to have short carbide boring bit to enlarge the chuck bore.Best wishes, Bill
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Re: Collet chucks
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On 12 Aug 2022, at 17:07, Leslie Bevis-Smith <leslie.bevis.smith@...> wrote:
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Re: Collet chucks
Leslie Bevis-Smith
UNIMAT used to offer a complete watchmakers collet sleeve for the SL to replace the standard type (which takes chucks). It is a lovely piece of equipment and is designed for 8mm collets. Leslie On Fri, 12 Aug 2022 at 16:58, Jarod <alderj601@...> wrote: Am I crazy or is it impossible to find sl1000 collet set up. Factory or aftermarket has eluded me. Does anyone know of a readily available m12x1 collet chuck? |
Re: first Pen and thoughts on moving forward
What fun!??
I'm not much of a You Tube watcher - I think spending 100 hours or 1000 hours at the lathe, vs watching You Tube for 100 hours is a much better teacher, and you get the bonus of making fun things. If you don't break some of your turnings, you aren't working hard enough - you need to learn your own limitations......... I have found with the needleworking tools that I am making now, that it is lots of fun to assign a shape based upon the wood grain that reveals itself.??I truly think I am a happier person if could start the day at a lathe.... Oh!? wait until you figure out how to make things from metal!? I am still amused that I have used a tap and die...so I bought the left hand ones too in micro sizes too. I still haven't made my mini Jorgenson clamps, but I did manage to buy the steel recently via mail order recently, another step closer. I had purchased all used lathe chisels until I bought the Carbide set and then purchased Sorby(s) for miniatures....? I like Sorby tools, but I do have some inexpensive lathe chisels that were acquired at auctions that are decent tools - it is all in the cut and sharpening. as the world turns! Tamra |
Re: first Pen and thoughts on moving forward
¿ªÔÆÌåÓýCute.? He¡¯s even got a striped suit. ? Jerry F. ? From: [email protected] [mailto:[email protected]] On Behalf Of Lex_Peacekeeper via groups.io
Sent: Thursday, August 11, 2022 5:48 PM To: Tamra; [email protected] Subject: Re: [Unimat] first Pen and thoughts on moving forward ? so ya the 6 I did the close up on have been working alright, I have done a few things with them the odd shaped ones (like the two Tamra pointed out) I have not touched? going back to where I bought the set the reviews are saying its not just lathe tools but a mix 9 wood working chisels and 3 lathe chisels (all of these were posted after I?bought it) |
Re: Peerless Jewelers Lathe for auction on Goodwill
I took a peek, and ran away clutching my poor empty wallet, too. I've already got five lathes right now, and only one is truly working as it should. I think I need to up that number before I buy another project lathe. Though I must say that the Unimat-sized lathes are a great deal easier to work on!?? 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
On Thursday, August 11, 2022 at 07:22:06 PM CDT, Tamra <tamrabrogdon@...> wrote:
<danger!>? ?Acquisition will lead to collet chase!? I've been able to resist so far, but clearly lathe acquisition disease continues to be a problem. It is the accessories where the real cost is.... I'm leaving the computer now so I won't bid! Best of Luck!? This is a pretty piece of equipment. Tamra |
Re: first Pen and thoughts on moving forward
so ya the 6 I did the close up on have been working alright, I have done a few things with them the odd shaped ones (like the two Tamra pointed out) I have not touched? going back to where I bought the set the reviews are saying its not just lathe tools but a mix 9 wood working chisels and 3 lathe chisels (all of these were posted after I?bought it) |
Re: Wheels
From Jarrod,? >>> am wondering what is the difference between machines with plastics vs. metal hand wheels
From my viewpoint, pre-conceived prejudices...? I've learned that Delrin is a very respectable plastic, but still I would not look seriously at a machine with plastic hand wheels and anything that requires lots of use or precision. and after Dear Husband finds it on my bench, I'm going to get the look if it has too much plastic...? I got yelled at when I bought a FP (Fisher Price) dremel lathe, and he was right, no way to hold the material on the lathe, if only I had listened to him.? (Please don't be offended if you love your Dremel lathe, I do love my Dremel Table saw!)? Opinions are free though... and life experiences are your best teacher, if it is junk, can you afford the mistake and does it have re-sale value?? If there are a lot of this item listed on eBay perhaps users are finding NO good use. Tamra |
Re: Peerless Jewelers Lathe for auction on Goodwill
<danger!>? ?Acquisition will lead to collet chase!? I've been able to resist so far, but clearly lathe acquisition disease continues to be a problem.
It is the accessories where the real cost is.... I'm leaving the computer now so I won't bid! Best of Luck!? This is a pretty piece of equipment. Tamra |
Re: first Pen and thoughts on moving forward
Lex, I've been wood turning since 2015.? I've not once seen a set of lathe chisels that the underside of the metal of lathe chisel is curved.? I do think the set of 12, 6 of the set are photographed on green are more likely carving chisels vs. lathe chisels, because two of them are curved on the underside and they are obviously a set.? ?I'm not an expert, but just an observation based upon our tool collection.??
I put a black dot on the two curved carving chisels - commonly used to carve spoons, or a recessed surface below the normal plane of the wood. I think the angle of the grind could be different in carving tools vs. lathe chisels.? If the angle of the grind is different you could have an unhappy experience turning with a wrong grind angle on steel and wood.? All kinds of un-fun things can happen.? I'm really not going to experiment as everything in my gut says do not experiment with carving tools and a piece of wood spinning at x rpm. Let's switch to the Unimat Desktop, and I love turning on a this size machine, but I do my normal wood turning on a wood lathe, and I've kept my unimat for metals as indicated in the post from other members, oil and wood, bad mix for the cool unimat.?These tools photographed set of 12 and 6 on green are pretty large to comfortably use on a desktop lathe the size of our Unimat / Sherline or Taig machines.? Our desktop lathes are much easier to set up to drill the insides of a pen blank.? I drill on a drill press when I use my Jet mini lathe for turning pen blanks. I do have a small set of lathe chisels from Benjamin's best - but they were not sharp upon arrival.? When lathe chisels are not sharp, you don't get a great finish on wood, and it is tearing. This micro set is OK, but still large for a unimat lathe. There is a bazillion $$ industry selling stuff to us for sharpening; I have not mastered this art.? I like sharpening with stone best though. I use my Taig Lathe for 1/12th scale wood parts or precision wood parts and use the cross slide and jewelry gravers and am happiest with this combination for wood. I do most of my woodturning on a Jet Mini Lathe with Variable Speed, and I'm reasonably skilled at this point in my journey.? I turned 30 pair of similar lace bobbins last year. This year, I am turning stump work tools for me and my needlework friend.? I don't use a duplicator, nothing wrong with duplicators, but I want to 'hone' my skills, subsequently I don't use a duplicator. My first project many years ago was to turn handles for my jewelry gravers and it worked out, but I turned them on the Jet Variable Speed Mini lathe. I have turned probably less then 10 pens, but it is fun activity for kids of all ages, so I always keep some pen kits around and I gift pens to special people in my circle. I recently turned a tiny hat stand about 3/8" tall for a friend - kinda of a dare, and did this on my jet mini lathe and incidentally I've only turned wood for pens on the jet mini wood lathe.... you can still pen parts on a Unimat lathe, but you are not likely to get a pen mandrel off the shelf for the unimat. What ever you use, hang on to your lathe chisels, and I run a fan behind me when I'm wood turning and my allergies have been ok.... for fine dust I do wear a mask.?? From an experience perspective, I'm happier finishing on a wood lathe then finishing off, but I love waterlox and most everything gets finished after it is parted off. Carbide Insert tools can be re-sharpened.? I bought a 3 piece set from Rockler and love them, they are 3 of my favorite lathe tools. FWIW, I've also, after many years finally figured out that wood curls are easier for me to make with a hand plane then a lathe chisel and spindle - I have no idea why, but that is my experience! I love my sewing machine, but I've spent a lot more time with my lathe(s) then my sewing machine! Tamra |
Re: Alternative motor for the Unimat SL
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On Tue, Aug 9, 2022 at 01:52 PM, NapierDeltic wrote: ... flat on arbor is more than OK.Thank you. 8^) Still have to drill/thread the pulley. ... don't need in the beginning ...Indeed ... I have quite a bit of of tools, a few made or heavily modified by me, always purchased on a need-to-use basis. Not to mention a huge collection of odd and ends plus screws, washers, nuts, useful stuff picked up from skips / sidewalk, etc. For some reason I always manage to find usefulness (of sorts) where others see trash, go figure. But now with my purchase of the U3 I am needing lathe-specific tooling without which I am sort of stuck. I'm now expecting the arrival of an Emco 4-jaw chuck on which I will post on the thread I started. Re: proxxon I already have two Dremels, a model 328 and a Multi-Pro. Purchased the ca. 1987 328 used so it is ~35 years old but is the best of them by far. The Multi-Pro was purchased new but the speed regulator broke down after very little use. I wired it direct and fed it through an external regulator but a couple of months after that, the rotor gave up the ghost. I was fortunate to get one of the last available spares at a local dealer and has now been in use for over 12 years. Both have had extensive use and have been quite useful but are rather lacking. The attachments and accessories made for Dremel and equivalents are a joke, so I use dental mechanic's tooling which is more expensive (eg: disks and spindles) but actually do the job properly and are durable. Unfortunately the hand drill/mills those chaps use are very dear. But there's absolutely nothing in the model engineer/hobbyist market that can match the dental mechanic's hand tools. ... want to know the difference brought by this motor.I'd say that it boils down to 95W vs. 200W, the option to regulate the speed/reverse direction and run for a couple of hours without burning out. I purchased a second hand (24V 300W) PS to run it at 6.000 rpm which I expect is the best speed to use it at. ie: where I'll get the highest torque. I'm keeping the original pulleys which with a soft start/soft stop speed regulator should work well enough and give a very wide range of speeds to work at, specifically at the lower end. ... don't make too?flamboyant plans.Nah !!!? 8^¡ã Flamboyant plans need fat wallets, which is certainly not my case. Centering the pulley hole is desirable. Good fit also.Yes. I have the fit: the shaft is precisely ground and matches the OEM pulley exactly. Painting the shaft with a marker made it difficult to slide the pulley on, can't get a better fit than that. As for the hole in the pulley, it is next on the list once I finish the adapter for the OEM motor bracket.? Maybe I'll manage to device a jig for doing that. ... carefully or let somebody skilled ...The main reason I purchased the U3 was that all the skilled somebodies I know (with lathes and such) are either not interested in doing smallish things like the ones I do/need or want an arm/leg for doing it, situation I have been at the mercy of for years. Every project or part I needed for a project literally took months and far too much cash. So now I have decided to do it all myself, slowly and carefully. Even if I have to do it twice, it will be less expensive and will learn something new in the process. Sorry ...?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? Hope it does not bother you.Not al all. Quite the contrary. Although experience is not necessarily transitive, it is always (be it good or bad) of great value. So, thank you very much for taking the time to write. 8^) Best, JHM |
Re: Alternative motor for the Unimat SL
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On Tue, Aug 9, 2022 at 11:38 AM, Bill in OKC too wrote: Yes, I am in the middle of getting/making all the tooling I need. A smaller vice and a basic set of parallels is on the list which has gotten rather long. For the filing I used one of those Stanley vices, a huge dissapointment. It's a perfect example of a great design (with a price to match) but very poor manufacturing and QC. For paralleles I've made do with pieces of the same drawn stock I had around, not ideal though. Unfortunately I did not have that training in shop class. Indeed ... On a side note: A direct ancestor of mine was an orologiaio, I found it interesting to see what he made a living from in the different documents I dug up. But then one day I reflected on the fact that in the late 1700's clocks and watches were made by hand under natural light. No way you get to do that without a lot of practice. Thanks for the heads up on that. Did not know there was a Nicholson manual or that it was available. Thank you. 8^) I am now dealing with something I overlooked: to use the same motor bracket on the U3, I need a mounting plate for the new motor and probably have make some modification on it. Not a problem as I will not be using the OEM motor on the U3 any more. Will post the end result when I get it finished. ... may not be perfect ...??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ... perfection is the enemy of good enough!?Ahh ... I've heard that so many times, generally from foremen and engineers on the construction site. But they were not the ones dealing with my clients, I was. So, when possible, I always aim for perfect. In this case, I am my own client. If I miss, it will probably be close but I always aim there. I have to be satisfied with the result of my work, whatever it is I am doing. Thank you very much for the links and your input. Best, JHM |