Messages

221

PoKeys / Re: Help me decide which Pokeys Please

« on: December 10, 2016, 01:29:03 AM »

Cool. Thanks.

Any idea of how to wire it so I can use the pulse index for homing? I think they call it differential, not sure what that is, but what happens for accurate homing it touches off of the home switch then backs off until it reads a specific pulse from the encoder on the servo. So it's dead perfect every time.

222

PoKeys / Re: Help me decide which Pokeys Please

« on: December 10, 2016, 01:11:20 AM »

Ok thanks.

So you can't control a VFD for the spindle with the 57CNC? I thought I read it can output the 0-10V for that?

223

PoKeys / Re: Help me decide which Pokeys Please

« on: December 10, 2016, 12:51:00 AM »

LOL I'm so used to typing Y and X.

@dude1, is there much difference between the 57E with M16 and the 57CNC? Would i have to use a breakout board with the 57CNC?

224

PoKeys / Help me decide which Pokeys Please

« on: December 09, 2016, 01:15:37 PM »

I'm converting a Mori Seiki SL1 CNC Lathe. I've decided on Pokeys, probably 57E with M16 Mobo or, it was suggested, 57E with an M15 and a C62. I'm curious whether 57CNC might work as well. Here's what I need to accomplish:

I want to run mach 3 as I understand the lathe portion of mach 4 is not quite there yet.

1. X and Y AC Servos
2. Accurate Home, after touching limit switch, with the pulse index differential thing on the servos, not sure how this works yet.
3. I was told I can thread by using the pulses of the servo encoders and adding an encoder to the spindle motor.
4. Spindle Speed control by way of 10V out to a VFD.
5. Will need to control an automatic tool changer, figured I could us PoBlocks to program it as a PLC to control this function. I'm familiar with ladder logic.
6. Standard inputs and outputs, limit switches, buttons on a custom pendent to control simple functions such as start, stop, run, etc...

225

General Mach Discussion / Re: Machine Retrofit Servo Zero Point

« on: December 08, 2016, 04:47:12 PM »

lol all these options are hurting my brain!!

I thought Mach4 wasn't quite there yet with the lathe part?

226

General Mach Discussion / Re: Machine Retrofit Servo Zero Point

« on: December 08, 2016, 10:25:48 AM »

Thanks for the help, I appreciate it.

I've lost interest in the smoothstepper, a little behind the times from what I've been reading. The Pokey stuff seems interesting and updated frequently. Arturo from CNC4PC suggested them and says they will do the index pulse homing and do threading based on the servo's own encoder on z, not sure how that works if I'm not using an encoder on the spindle or maybe he assumed I was and this was just a way to improve timing. PLUS the Pokeys has it's own proprietary PLC built in that I can use to program the tool changer. Not ladder logic though, which sucks.

Also from smoothstepper forum they said those servos would work. I want to stay with AC so I don't have to have a separate power supply, if that's required, never worked with servo's before assume a DC one would need a PS.

227

General Mach Discussion / Re: Machine Retrofit Servo Zero Point

« on: December 07, 2016, 05:48:56 PM »

ok thanks


Looking at these, what do you think?

http://www.ebay.com/itm/2-6KW-AC-Servo-CNC-Motor-Drive-Set-10NM-220V-2500R-Min-NEMA52-Food-Processing-/112108259882?hash=item1a1a2c4a2a:g:ySMAAOSwA3dYMqXZ

228

General Mach Discussion / Re: Machine Retrofit Servo Zero Point

« on: December 07, 2016, 12:41:27 PM »

Ah, cool. Nice unit. Pricey though. I'll see if the smoothstepper can do that.

229

General Mach Discussion / Machine Retrofit Servo Zero Point

« on: December 06, 2016, 11:34:40 PM »

So I'm retrofitting a Mori SL1 CNC Lathe. I'm changing out everything and use some AC Servos and Drives. My question is, as i've been told, that on the original machine once you set the home function for each axis - which is it goes to it's limit switch and backs off - it then finds the the correct position on the servo's encoder to be exactly at the same point when you start the machine each time. It was explained to me that there is a home position on the encoder or something to this affect.

How would I program that in Mach 3. Basically what I want is to home the machine when I turn it on everyday and have it be accurate. To me, on a lathe, backing off after touching off of a limit switch is not accurate enough.

Thanks.

230

General Mach Discussion / Mori SL1 Retrofit Control Advice

« on: December 04, 2016, 03:48:36 PM »

Ok so I'm going to be retrofitting a Mori SL1 lathe.

I guess what should I use? Mach 3 or a standalone controller with it's own software and interface?

I already have multiple machines running mach 3 and i like it.

What would i Need to Run Mach now, my old machines are mach 3 with a computer holding onto XP. Nothing new allows xp to be installed as far as I know, the drivers are just not made.

So if I go 32bit Windows 7 what BOB should I use with my new servos? And will it run windows 7 effectively? I'm not convinced that Mach 4 will do everything Mach 3 will, yet.

Also how do I control the other items such as automatic tool changer?