[chuck767]

I'm considering upgrading my Yasnac 3000g control on my Shizuoka AN-S knee mill.

This mill is in my hobby shop not a production shop.

Looking at Centroid, Acu-rite, Mach motion, Camsof, and a few others.

Would appreciate hearing what others have done in upgrading their older controllers and how they like the new control.

Thanks,
Chuck

[chuck767]

Does anyone have a recommendation as to what aftermarket control to put on my mill?
Thanks,
Chuck

[Al_The_Man]

A lot depends on how much ability you have in the area and also cost factor?
There is Mach, which is about the cheapest/simplest to Camsoft with Linux and Kmotion in between, it also depends on whether you are looking to integrate any of the existing electronics, drives/motors etc.
Al.

[chuck767]

A lot depends on how much ability you have in the area and also cost factor?
There is Mach, which is about the cheapest/simplest to Camsoft with Linux and Kmotion in between, it also depends on whether you are looking to integrate any of the existing electronics, drives/motors etc.
Al.

Al, Don't mind spending a reasonable amount of $$$ but want a simple conversational control that can also take post process g-code. Also want to do the retrofit my self so simplicity would be a big factor. From what I understand my servos/encoders will need to be replaced, but maybe not. The existing Yasnac 3000G works fine so I would like to use the servos/encoders.
So based on this what direction should I take. Centorid, Camsoft, Mach, Mach Motion, etc.
Thanks for some direction.
Chuck

[Al_The_Man]

You would have to first look into how the drives are controlled or the nature of the command signal, able to use step/dir or ±10vdc analogue.
Or at least use the motors themselves.
I am not familiar with those actual drives.
Al.

[chuck767]

Al
Here are some photos of the servomotor. Does this provide what you were looking for. The mill is running on 3 ph 220vac.
Chuck

[Al_The_Man]

It appears that it could be DC brushed motors? the encoder could be used but is 12v and probabally open collector so it would need a RS485 differential driver IC.
Do you have 3ph in your shop or thinking of converting it?
Al.

[chuck767]

[QUOTE=Al_The_Man;.
Do you have 3ph in your shop or thinking of converting it?
Al.[/QUOTE]


Al

I have a rotary converter that will handle 15 hp total.
Chuck

[Al_The_Man]

You may know this already, but you need to ensure the 2 phases that originate the single phase circuitry in the enclosure comes from the the two 1ph lines feeding the RPC.
Al.

[chuck767]

You may know this already, but you need to ensure the 2 phases that originate the single phase circuitry in the enclosure comes from the the two 1ph lines feeding the RPC.
Al.

I recall when I initially wired up the mill I had to get the right phases to make it work correctly. What is the RPC?

Based on what's I learning, It looks like I'm narrowing the retrofit to Centroid/Ajax or MachMotion. Any thought as to what would be best for my hobby shop mill?
Chuck

[G59]

What is the RPC?

Rotary Phase Converter

[chuck767]

It appears that it could be DC brushed motors? the encoder could be used but is 12v and probabally open collector so it would need a RS485 differential driver IC.

Al.

The local Centroid shop determined that my servo motors would work with their control but I would need new encoders.
Still not sure what control to use. Thinking of putting one together using off the shelf parts rather than buying a package like Ajax has. Any thoughts on putting a control together?
Chuck

[Al_The_Man]

As in post #3 there is Kmotion and also Linux based.
Al.