New PM-728V-T Mill

[jlchapman]

Looks like your missing the extension cable from Priest.

Let us know how you like it when it up and running.

Jerry

 

[jlchapman]

Find a belt that will work and then cut the front part off and make it pretty

View attachment 340192

Jim,
Could I get your Fustion360 files for the encoder and the spindle pulleys? It sure would save me some time.

Thanks,

Jerry

 

[jimrk]

Jim,
Could I get your Fustion360 files for the encoder and the spindle pulleys? It sure would save me some time.

Thanks,

Jerry

Sure, I'll just have to find them.

 

[Genghis6400]

Thanks for the kind words!
That is the PM-1228VF-LB lathe. I have had it about almost a year and it does everything I need for my retirement hobby projects. Plus it fits my work space, spend a lot of time in that area each day.

I ended up getting the 1340GT

 

[sakumar]

Setting the C86ACCP does the job for when e-stop or if there is a servo fault. Of course when the power is turned off the head needs to be locked or a support needs to be used.

Not sure if I can give them any helpful info. I don't know if the tuning software saves any info that would help. You could ask them.

I asked this question on the Centroid Acorn forum as well -- If there is a servo fault, how can I stop the spindle's DC motor? Is there a way to use the Relay OUT1 signal from Acorn to achieve this?

I already have an E-stop configured which stops both the spindle and also disconnects Acorn's E-Stop input 8 from COM. This effectively stops all the motors. To stop the spindle I use a contactor. I also have a Z-axis lock which is triggered by the Acorn during E-stop to prevent this z-axis from slipping down.

However, if there is a servo fault, I'm not sure how I can stop the spindle. Thanks for any help/pointers.

Also, I should mention that at this time I don't plan to use the Acorn's VFD features to control the 727VT's brushless DC spindle hence the need for an external mechanism to stop the spindle in case of a servo fault.