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Guenther’s reply may have seemed harsh, but I don’t think he was far off target. I’d have instead said that any decent machinist - or anyone with experience running one of these light lathes -

Guenther, most of us here are amateurs. Not professional machinists. That is quite enough. If you do not have something constructive to say, do not say anything at all. Bill in OKC William R. Meyers,

Any decent machinist should know how to grind cutting tool for his machining job GP

Hi Bruce, If you have a choice between 6061 and 7075, the less expensive option will be fine for what you're using it for. You're not going to be loading it very much - 7075 is more prone to fatigue

any one have any pic's of the tool profile they use for makin pulleys ? ??? ??? animal

John, Nice article! Procedure look good, I'd use different tooling but same idea. Not going to make one for this episode but I have made a pulley or 2 in the past. Trued up a couple die cast ones as

Bruce, One additional thing to add to your literature pile. I read and applied what i learned in this write-up when I was making the motor pulley for my lathe. You might find it useful as well. Good

Another place you can try is Metal Supermarkets; they have quite a few stores around the country, and also ship for online orders. Website:

SpeedyMetals.com sells Aluminum round in 2011, 2024, 6061, and 7075 grades.? 7075 round aluminum can be had up to 12” diameter from Speedy. Speedy also sells Class 40 gray cast iron up to 12”

So you're planning to create a pulley, eh? I'd really like to see a video of that! Most of us have to settle for fabricating things.

Bruce, Yeah, 7075 is expensive but 6061 would work better than fine. 7075 just cuts so nice. Going cast iron is not going to save any money regardless of how you do it unless you pour it yourself!

"I see no reason to 3-D print the pattern. Turn one out of wood, or glue up some sawn plywood disks" I make a lot of things in wood first, it helps me as a practice run. Sometimes I don't see the

Making that large pulley from a casting is definitely the way to go. Making it from bar stock, there would be - as you say - a lot of metal to whittle away. Cast iron versus cast aluminum - that’s

JohnI guess it could be somewhat complicated for a person that never used metal machines before. There are many members here that have the experience and are willing to help.? If? a member needs

Bruce, Not necessarily cheaper, but I want it cast iron. Plus, it will be way less work to turn down a cast blank than a solid chunk of bar. I probably failed to mention that it's a 4 step pulley, and

Bruce, Just offering a word of encouragement — the very first real thing I machined on my 618 lathe was a 2-step motor pulley. When I bought the lathe, it had all the other parts including the

Thanks all! Glenn N – Yes, Robert Downs put this file in the files section. Brad – How can 3-D printing & casting & machining be less expensive than the piece of aluminum? Kay – Thanks for the

Also, the 101.28990 will have the slip clutch on the lead screw, and the cross-feed engages by pushing down on a lever instead of by pulling out on the constantly rotating knob like everything else

OK. If it bends and doesn’t break, then it is most likely metal and therefore not original. And if it is that thin, it should have been replaced some time ago whatever it is. J Robert Downs Sent:

So is the assembly drawing. It is in most if not all of the cabinet model operating and parts manuals. Robert Downs Sent: Tuesday, April 14, 2020 06:40 To: [email protected] Subject: Re: Belt