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Check out roctech They sell some nice machines in your price range with US support. Yaskawa servo drives and motors, decent linear rails, industrial control system.

--John

I have a working on a 4 axis machine for making beer tap handles. I have a small machine I made that's 3 axis right now that runs on a G540. The 3 axis works great on lathelike solids but has...

Thanks for the reference, Al. I went to look up the CSA docs and they want a bunch of money for just a pdf. Ack. :)

The Delta VFD User's guide recommends grounded shielded cable. They are...

Thanks Al. Somehow I got misquoted (most US machines use specialty VFD cable of some sort). On the machines I have worked on that are imported, the cable was shielded, with no shield connection. ...

This is a question for people who have bought Chinese 1325 type machines. In the US, it would be common for the cable between the VFD and the spindle to be a high quality VFD cable. Did your...

A solenoid (or voice coil) is a simple linear motor. I only need a 1/2" of motion and I need that position controlled. It seems like if I connect a linear encoder up to the output, the geckodrive...

I am wanting high speed linear position control. I am considering using a voice coil or a solenoid and was wondering if a geckodrive would work for this if I put a linear encoder on the solenoid/VC...

Hi,

I'm John and I have a little project. I created CNCBOOTCAMP.COM to help solve a problem I heard from a lot of people I've interacted with about Vectric's Aspire at various CNC camps and at...

Is there a way to take a 3d model and unwrap it like artcam can do? I'm trying to turn the 3d model into a "flat relief" that I can manipulate in Aspire.

thanks,
John

What about replacement pinions? One of the things that commonly needs to be dealt with in R&P systems is wear on the pinions. Will we be able to purchase and install replacement pinions ourselves...

I'm pretty sure I saw a machine build here that used a bed made from pvc pipe with threaded rod through it, maple rails with angle iron on the edges with Vee bearings running on the apex of the angle...

Right now I have an old control system running pk266 motors at 45v and getting about 1.5in/sec on .2in pitch ballscrews @ about 1.5A/ph. I'd like to get more like 2-4in/sec, which would require...

What kind of rpms can we expect for 3A stepper motors (with usable torque) from one of these drivers. I'm running .2" pitch ballscrews and am wondering if I can get good speed from the cheap drives...

Try this one:

http://www.cncrouterparts.com/

You can buy 80/20 linear extrusion from ebay from manufacter's surplus (great guys to work with, btw). Since your weight requirements are rather...

how about this?

YouTube - Thunderbird by Sharpie

it's just a hole to fit a sharpie with a lead weight on the top for pressure.

John

Any word on release date?

John

Why is there a 1350 rpm limit w/o a g100?

Why not?

I am curious if one can drive an 8 wire stepper with 2 drive channels be using each driver in half coil on the same motor? I envision connecting 1 drive to the a and b phases and another slaved...

another crazy idea. I noticed a few people where interested in running higher currents on the cheaper drives. Could one instead use two drivers running one motor? 1 drive running one set of coils...

I think input isolation would be worth the cost to most buyers in that they could avoid a breakout board. Just a thought. I can't believe anyone would gripe about a nice cheap 3A drive. I just got...

I am interested in ordering. Is there a waiting list or a deposit necessary?

John

I think people are trying to avoid doubling their cost. Since it seems that the difference in cost between a truck of a standard length and a longer one would be the incremental cost of the...

Got it. I think it finally sunk in. Thanks guys.

At low speed, I definately agree, but I don't have any torque issues there. At high speed though? Hmmm. I've not had much luck finding information about torque speed curves running half coil. Is...

Ok, thanks guys. Now for the followup question:

I am limited to 2A drive current. Am I better off using half coil or parrallel on this motor (bipolar drive)?
...

Indeed. I've ordered a small desktop cnc with .1" lead screws. Not expecting whip as the largest possible unsupported length would be less than 14". I'm very limited by the choice of control box,...

I'm also trying to avoid buying 4 sheets of really expensive stuff. Ouch.

As far as I can tell, Mcmaster-carr doesn't carry *edge lit* acrylic. Its special stuff that a lot of places don't...

I am looking for a supplier of edge lit acrylic. Various companies make different versions....cyro endlighten, Plexiglas ELiT, Plexiglas ELiT II amongst others. Every place I've looked has wanted...

Thanks Jeff. That looks right and I found a few motor manufacturer's that quote inductance in half coil, and they agree with you.

Another thing I found is that higher speed is possible in half...