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Questions to make a CNC Router Is it OK to drive the rack and spur gears, just with the motor without an belt reduction? Does the motor from the Z axis must be the same size as X,Y? Raul

I thought I was violating list rules so I tried to be as brief as possible. Turns out I'm OK! :-) I created this webpage for pics and all the details I have:

I have a couple custom shops here in the phila area. they will take blanks of the material and make what you need. Figure $30 to $50 for set-up then $5-$10 for the blank (1/4 carbide ?? x 3" long??)

While I'm waiting to find the right machine for my cnc retrofit, I thought I'd start playing around with the software. So far I have download TurboCadCam which does both. I want to take a look at some

Hi bill, well the base of the machine after filling with polycrete weighed just over 10 tons. it was a welded structure with rounded gussets and several layers of open bottom drawers so to speak.

Marv, Yep I can read dwg's, I'd really like to look at the drawings, Thanks Phil

Jon Elson <elson@...> wrote: doug king wrote: Well, it is a cost comparison. How much space is available. (Actually, most resolvers are bigger than modern optical shart encoders, so size

Err. That should have been: http://www.smidgie.com/928/machineshop --C.S.

Hello ! I have a request, I have a requirement for a small quantity of router bits to be made. Only one shop here in Fayetteville NC will even talk to me about producing them and I suspect that the

Hi all, I've a question about microstepping. If I look at the speed vs. torque diagram, the steppers I'm using have a torque of 3 Nm (460 0z/in) at 5000 Hz. This in half step mode, if use

Any pictures? Pricing? --C.S.

Sorry for the spam but I figured while we were on the topic of encoders some people might be interested. I happen to have a bunch of encoders that I picked up for a DRO project I had planned and have

We always used rotary brushless resolvers on machine tools which were originally developed for the military and hence fairly robust. They have one other advantage that they are absolute devices for

I'm pretty new to machining, so please forgive me if my questions have already been re-hashed ad nauseam. I have a Rong Fu Geared Head Mill/Drill from Enco. So far I've only made one part!

cs@... writes: You are allowed to offer items for sale on the list. No catalogs. Buyers should address all questions direct to the seller, remember everything goes to the archives

Yo Elliot; For a setup that would work on either a mill, or a drill press, how about a grinder bit in a Jacobs chuck, and on the table, a rotary table mounted on a sine plate? On a drill press it

doug king wrote: Well, it is a cost comparison. How much space is available. (Actually, most resolvers are bigger than modern optical shart encoders, so size is not likely to be a problem.) So, it

Hi.I have an old HNC Hardinge that I believe has resolvers.Do I have to change 'em out?I'd love to stay cheap and get function from this beauty if'n I can...Thanks,Doug Jon Elson

Yo Marv; I don't know if QCad will read it or not, but lets give it a try. Bill

How about this: sharpen drill bits in a 4 axis mill or lathe with spindle encoder. It might be possible, just move everything just so. More of us have CNC equipment than fancy drill sharpeners. I'm