Zenford Zeigler Retrofit

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12 May 2018 12:54 #110598 by snoozer77
snoozer77 created the topic: Zenford Zeigler Retrofit
Hi All,

I have recently purchased 1985 Zenford Zeigler CNC milling machine with 24 tool carousel changer. This machine is an Australian built machine, fitted with an early ANCA 2000 controller, also Oz made.

The Anca controller is well and truly past its used by date, But im hoping to bring the machine back to life with Linuxcnc.

After talking to another ozzy who was also retrofitting a zenford machine (Thanks for the advise Russell), he has recommended using mesa hardware with the original servo's, drives etc.

I have been looking through allot of forums here for the last month or so, trying to get a grasp of the hardware, testing, homework etc, i will need to do before tackling this retofit.

Im a machinist with some electrical experience, but this will be the first time tackling a cnc retrofit like this. (i do have a small hobby cnc router running GRBL, steppers etc that i enjoy tinkering with)

I do have allot of electrical info about this machine. Elec drawings, Owners manual, spindle drive manual and a printout of the original controllers plc ladder type program.

Im looking to use the original brushed DC servo's and drives (all axis's and spindle), these include tacho feedback to drive and resolver feedback to control. Drive inputs are analogue +/- 10v, Relays are 24v.

looking for recommendations on mesa cards for my build.

Was looking at 5i24, 7i49, 7i44, 7i84

was also looking at 2 x 7i29's servo drives (in case of the originals failing in the future). Would they be compatable with the other components in the system? As i would initially like to get the machine running as basic as possible (no tool change, original drives), then add tool change, install new drives when i get a bit more experience and confidence.

Im able to post drawings and collect info as required.

Any info, suggestions or advise would be much appreciated.

Cheers

Matt
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15 May 2018 23:16 #110779 by andypugh
andypugh replied the topic: Zenford Zeigler Retrofit
You would probably need to use a different firmware if you needed to change the drives in the future, but the config you describe has an entire spare 50-pin connector to which the pair of 7i29s could connect if you chose to go that way in the future.

With the existing hardware that you have I think your choice of Mesa cards seems sensible. (it is pretty much identical to what I have on my own lathe and milling machine).
The following user(s) said Thank You: snoozer77
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16 May 2018 03:53 - 16 May 2018 03:57 #110784 by snoozer77
snoozer77 replied the topic: Zenford Zeigler Retrofit
Thanks Andy. I have all the mesa cards in my cart on the mesa store. Was hoping someone would see my post and say that they would work.

I pretty much based my selection on reading all the info i could about your lathe and mill.

Thanks again.
Last Edit: 16 May 2018 03:57 by snoozer77.
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20 May 2018 12:36 #110924 by snoozer77
snoozer77 replied the topic: Zenford Zeigler Retrofit
Hi Andy,

Just wondering if STMBL drives will become easier to get in the future? I see you have used them in the past. Would they be a bit beyond a relative novice to set up?
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20 May 2018 13:06 #110925 by andypugh
andypugh replied the topic: Zenford Zeigler Retrofit

snoozer77 wrote: Just wondering if STMBL drives will become easier to get in the future? I see you have used them in the past. Would they be a bit beyond a relative novice to set up?


I didn't mention STMBL because your machine has DC servos and STMBL only works with three-phase motors (Of almost any type)

The intention seems to be that STMBL should be much easier to get hold of in the future, but at the moment one of the biggest components in the drive is end-of-line and unavailable so a redesign is under way.

For the moment I would suggest sticking with your existing motors and drives.
The following user(s) said Thank You: snoozer77
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