Author Topic: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.  (Read 700 times)

Offline RotarySMP

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Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« on: February 28, 2021, 08:17:25 AM »
I couldn't resist when this came up for auction..



There is not much online about such old CNC electronics, so I decided to a video as a tribute to the electronics and computor engineers of the 1970's. While it would be cool to get it going as is, without any manuals or knowledge of the schaublin interface with the Data General Nova, that is not feasible. I will remove the controller as a complete module and send it to a museum or collector. It wont get scrapped.


Best regards, Meilleures salutations, Mit freundlichen Grüßen, Cu salutari
Mark
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Offline Muzzerboy

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #1 on: February 28, 2021, 12:01:20 PM »
Fascinating stuff! Yours was machine #12 in 1981 judging by the label. The date codes on those ICs slightly predate that, which makes sense.

Jealous as hell, will be watching!


Offline RotarySMP

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #2 on: February 28, 2021, 02:53:32 PM »
Oh yeah, thanks for pointing that out.  knew there was a reason why I suspected it ws from 81, but lost track of why I thought that.
Mark
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Mark
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Offline RotarySMP

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #3 on: March 07, 2021, 06:01:34 AM »
Well, no turning bck now...


Mark
Best regards, Meilleures salutations, Mit freundlichen Grüßen, Cu salutari
Mark
https://www.youtube.com/c/RotarySMP

Offline RotarySMP

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #4 on: March 14, 2021, 07:00:57 AM »
Whatever cutting oil was used in this machine dried up like varnish. I am having to tear it down further than planned to clean this out, as the slides are stuck down.



Mark
Best regards, Meilleures salutations, Mit freundlichen Grüßen, Cu salutari
Mark
https://www.youtube.com/c/RotarySMP

Offline philf

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #5 on: March 14, 2021, 05:39:01 PM »
Did you find out how the belts were tensioned?

Loving the videos.
Phil Fern
Location: Marple, Cheshire

Offline RotarySMP

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #6 on: March 15, 2021, 07:59:51 AM »
There is nothing, so the belt tension is what it is. I also find that weird. There are no taper pins, so a tiny bit of slop in the screw holes can be used.
Mark
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Mark
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Offline RotarySMP

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #7 on: March 21, 2021, 09:00:48 AM »
I pulled the Saddle off this week...

Mark
Best regards, Meilleures salutations, Mit freundlichen Grüßen, Cu salutari
Mark
https://www.youtube.com/c/RotarySMP

Offline RotarySMP

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #8 on: March 28, 2021, 07:28:21 AM »
Made a little more progress, but also a bit of a set back:



Best regards, Meilleures salutations, Mit freundlichen Grüßen, Cu salutari
Mark
https://www.youtube.com/c/RotarySMP

Offline RotarySMP

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #9 on: April 04, 2021, 06:02:25 AM »
I procrastinated as long as possible, but it is time to play workshop tetris.


Best regards, Meilleures salutations, Mit freundlichen Grüßen, Cu salutari
Mark
https://www.youtube.com/c/RotarySMP

Offline RotarySMP

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #10 on: Today at 06:04:02 AM »


Best regards, Meilleures salutations, Mit freundlichen Grüßen, Cu salutari
Mark
https://www.youtube.com/c/RotarySMP

Offline Pete.

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #11 on: Today at 09:03:58 AM »
Looks like there's very little grease in those bearings, but then again most people tend to over-grease them. When I put new spindle bearings into my Hardinge lathe I looked up the manufacturer's spec for the amount of grease to use and I was surprised at the small amount required - 4.6cc

 

Offline RotarySMP

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #12 on: Today at 09:49:10 AM »
Thanks for that. I knew it was only a small amout, like 15 or 25%, butit is nice to see the table with the amount in g. I'll use that.
Mark
Best regards, Meilleures salutations, Mit freundlichen Grüßen, Cu salutari
Mark
https://www.youtube.com/c/RotarySMP