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Kit,
I think Roger has a good idea. As this is your y axis gib, you should have enough travel along the x to handle the entire piece in one go. I am not sure how different our machines are, but...

Yeah, i feel your pain. Like you say, take it as a learning experience. And it does look like a nice part to machine up.
Stay zen!

Kit,
Really sorry to hear about the break. I know you can use special fasteners to stitch up cracks in cast iron but not sure if those techniques would be applicable to this issue. Maybe do a...

Kit,
Why so many drives? Well I do have a hard time passing up a good deal ! I use the really good deals as a cheap education. I have no problem dropping 40bucks on something if I think I can learn...

I managed to get my drives/servos for probably about $150 an axis. But that is a lot of ebay waiting and hunting and a few broken drives were purchased in the process (not included in my estimate) ...

G59,
My machine is a 2UVR-C that has been converted to CNC by Textronix for use in their model shop. It has several differences to the the Journeyman series. The knee lock is gone, and they didn't...

I just found some discussions on practicalmachinist. Looks like running the ball screws manually can work quite well depending on the pitch and how tight the ways are. I'm interested to know how it...

Hi Kit,
Looks like good progress. Thanks for posting all the progress pictures. I just rewired my control box, trying to make it neat and organized....with some success. I also added a...

Yes, X-axis screw is captured in saddle.
Yes, the knee is my z-elevation - and yes it is heavy. Goes down fast but up is a bit slower but at least 80 ipm if I remember right. It is a small servo...

PHOTOS NOW ATTACHED
Here are some photos of my 2UVR-C. She's been in storage for 2 years and is still covered with LPS3. Which I have to say worked well at keeping the rust at bay on all my...

Kit,
I purchased the mill as a 3 axis CNC machine. So all I did was change out the old drives and servos with the Emerson equipment. I am not certain, but I think the original conversion from...

I have a 2UVR-C that was converted to NC by Tektronix. It had NC400 drives, DC servos and a custom built Tektronix Machine Controller. I have changed out the motors and drives with Emerson...

tvan56
I am running a Tree 2UVRC with Emerson MG-316 (750W) servos driven by EB-205 drives for X and Y (~32lb-in). Z axis (entire knee) is driven by an MG-208 (480W) servo and an EN-208 drive...

You can do an internet search for intel or AMD mounting hole specifications. The hole spacing will be dependant on the socket type and board type. They will also provide information on the required...

Hi Walt,
You probably already finished your jo, but...
I have recently started cutting threads with a single point thread mill from Scientific Cutting Tools. I helically interpolate a hole ~minor...

The firt link I had in there *.pdf was a link I found that had the manual for the NC400. I did not contact them , I just found it with a google search. I tried searching for your NC121F drives and...

http://www.contraves-drives.com/pdf/M502001_d.pdf
This is where I got my manual.
The root of that will get you to the company website.
www.contraves-drives.com
Not sure if this is the...

Are those drives Contrave drives? If they take digital inputs they will work with Mach3. If they are analog, then you would need a converter that TOTALLYRC listed in his reply.

I have Contrave...

I have a 2UVRC that was NC'd way back by Tektronix. It had a custom Tek controller, NC400 Contrave drives and DC servo motors. I replaced all the motors and drives with Emerson servos/drives that...

Thanks for the information of the spindle cam adjustment. Seems that I also have a lot of slop up in the gear train. Is this normal? Is there a common cause that usually causes this?

I've got...

Tom,
A little bit of both. I'm an engineer who wants to understand it all. Got the NC machine running and just trying to dig a little deeper and understand the true potential.

My Mitsubishi...

SouthbendK1,
I'll get some photos together in a couple weeks. I'm out of town right now. I'll send you a note when I do.
--bob

Tom,
Thanks for the reply. After researching some more in the manual, I believe you are correct in that it does not have a true 'accell' 'decell' for each step. The specific tab where I input the...

You could convert it to CNC in such a way to be able to use it manually. Cost is so variable. Given enough time to get the right deal on ebay you should be able to get servos and drives for...

Anyone have experience (or know of a thread) with the best method to use the acceleration options on the servo driver itself when using Mach2?

I am using Emerson servo drives with step/direction...