Author Topic: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.  (Read 7684 times)

Offline philf

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #50 on: March 20, 2022, 03:03:22 PM »
Hi,

I'm sure (not exactly sure but would expect) that there will be connections for a braking resistor on your VFD.

My lathe is a similar size to yours and I can stop a 160mm chuck from 2,400 rpm in less than a second.

I have 2 off 220 Ohm 50W chassis mount resistors wired in parallel and fastened to a smallish finned heatsink. (Equivalent to 110 Ohm at 100W I hope.)

Cheers.

Phil.

P.S. Loving your videos.
« Last Edit: March 20, 2022, 04:53:43 PM by philf »
Phil Fern
Location: Marple, Cheshire

Offline RotarySMP

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Re: Schaublin 125-CNC retrofit to LinuxCNC and Mesa cards.
« Reply #51 on: March 29, 2022, 09:15:08 AM »
Thanks Phil, the Lenze brak module for this VFD is 300W, but since there is a mechanical brake mounted on the motor shaft already, I would rather just let the vfd coast down, and mechanically brake the load. Havent worked out whole to set that yet.

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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 #52 on: April 03, 2022, 06:00:30 AM »
I took a Uni course in machine tool design, and figured I'd try out what I learned on the Schaublin...

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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 #53 on: May 01, 2022, 08:04:39 AM »
I didnt post last weeks video to this thread, as it was more of an unsuccessful casting vid than a Schaublin progress report. This week is better.

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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 #54 on: May 08, 2022, 06:17:07 AM »
This week it is the X-Axis motor mount...
 


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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 #55 on: May 15, 2022, 07:29:13 AM »
I have never had a power chuck before...
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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 #56 on: June 05, 2022, 06:04:39 AM »
Bit of lathe work on the Boley required this week, but good progress...

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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 #57 on: June 12, 2022, 07:03:35 AM »
Some more minor steps...
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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 #58 on: July 17, 2022, 06:44:35 AM »
Oops, forgot to link in the last video...


It is looking more and more like a lathe...
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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 #59 on: July 31, 2022, 10:41:35 AM »
Bit random this week :)
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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 #60 on: August 09, 2022, 02:19:45 AM »
Best regards, Meilleures salutations, Mit freundlichen Grüßen, Cu salutari
Mark
https://www.youtube.com/c/RotarySMP