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Do you own a Craftex Mini-mill? (either model)
Are you planning to convert to CNC?
Are you located on Ontario?
Please PM me. Looking to work with someone on CNC'g one of these mills.

Harry, do you still have the plans, I am looking for either a copy or a picture. I am going to build a machine, but am looking at what is out there first. Thanks in advance, Eric

Anyone????

I have a luminart sign machine, vintage 1995ish... I think it is made by Precix. I am trying to find information on the 4 axis (only 3 axis populated) stepper board that they used in the machine...

Might be too late for this one? I already started (maybe... the fan was running) the PSU without load... It does not have a HD connector. Just a 4 pinconnector for a MB?

The other connector is...

Looks promising!... I'll give it a try tomorrow!.... P.S. Thanks for the link for the divide-by-N jamin'... Eric

I bought a 50W Touch micro ATX (SP9627) PSU. I cannot seem to figure out the wiring arrangement. I looked at the formfactor spec. It would seem to indicate that there should at least be standby...

I found this IC at Digikey... Texas Instruments CD74HC4059M96. The datasheet can be found at: http://focus.ti.com/lit/ds/symlink/cd74hc4059.pdf.

This a programmable divide-by... They use the...

Does anyone have a divider circuit for driving an LED off the Step/Dir signal but at slower frequency; say for every 10 / 100 / 1000 steps, LED flashes once. I saw a product like this on one of the...

I could only find 3 wires on the secondary. I did remove some of the covering to look in but the metal wrap around the outside prevents seeing much.

If I use the configuration that pminmo suggested... will I be back to the same power output as using one of the secondaries? Or am I further ahead?

Thanks for the reply Al,

What is the reason that my suggestion would not work?

I have a toroid transformer that is rated 120V input / 39.8-0-39.8V 8.8A.

I want to have the full VA rating to run a single 56VDC circuit.

When I measure it I get 40 & 80V readings aross the...

I want to rotate to any location 0 - 360 deg. I am heading toward using an oversized gear reducer and preload the backlash out of it.

I am currently planning on using a timing belt with an...

I am retrofitting a 10x27 metal lathe into a turn/mill machine c/w 2HP VFD spindle. I am planning on using a 5/8" ball screw for the lead screw with a 600 oz-in (holding torque) stepper motor... I...

Wow... What a quick response!

I am planning to use a 2Hp motor & VFD (I have the VFD already), this gets away from demanding that the spindle motor handle the indexing functions for milling as...

I just bought a new lathe that I am going to turn into a small turn/mill machine. I have been struggling on how best to index the spindle. I think I need somewhere in the 60+:1 gearing ratio. Here...

You can get pneumatic vibrators on the 300+ Hz range... McMaster Carr sells them... look-up "Air-Powered Rotary Ball Vibrators". They have some higher performance versions that go up to about...

I went to my local landscape supply... They have 3/8" pea gravel... Anyone know the difference between that and river rock? Will it work for our application?
Eric

I broke down and bought on at cnc4pc along with a couple of other boards.

Thanks to all, Eric

Sam,

I am looking to build a servo CNC gantry mill. Thinking of using the MESA card with EMC2 (EMC2 for sure)...
I read that you got your H-Bridge circuit to work... Mind sharing the design?...

HayTay,

Have you made any progress with you charge pump?

Eric

Polymer is just that; concrete that is made of epoxy resin mixed with a filler, generally crushed granite or quartz. Usually the filler has different aggregate sizes to fill the the voids so that...

NC Cams... I read that thread already... None of the manufacturers that I saw offer the raw material only. If someone knows different, I would be interested in hearing. Eric

I am looking to build a CNC machine from polymer concrete & I have a couple of questions...
1. Can anyone point me in the direction of a suitable supplier for the epoxy? or Epoxy & filler?
2....

Would you mind letting us in on who the vendor is? Eric

Thanks for the input! Eric

I am looking at purchasing a couple pair of used THK rails & blocks; HSR20CR. They are going to be used for a 30" x 30" x 12" (cutting envelope) gantry mill. The rails are 2m long so there will be...

I am looking at buying some Globe Motors Servo motors: PN 537A194, 65VDC, 2" in diameter, 5" long with a 1/4" shaft. They do not have an amerage rating.

Does anyone have any information on these?...

Hello,

We are looking to have some aluminum (or steel) moulds made for small injection mould press. They are for a small series of propellers. Believe EDM will be required, as they have complex...