Schaublin 125-CNC retrofit.

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11 Mar 2021 15:19 #201822 by RotarySMP
Thanks for your inputs guys.This really helps. Analog control it will be.
Mark

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11 Mar 2021 17:24 #201835 by tecno
Replied by tecno on topic Schaublin 125-CNC retrofit.
I got scammed by far east, ordered drivers with analog but got step/dir so I have to live with it, works.

Same brand...

So go with analog Mark.
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11 Mar 2021 18:36 #201847 by RotarySMP
Thanks, which model number are your drivers?
Mark

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11 Mar 2021 18:44 #201849 by J Green
Replied by J Green on topic Schaublin 125-CNC retrofit.
andypugh
Could or would you elaborate about the 12Volt DC PC Motherboard you are using ? A 12 Volt DC board would save needing a PC power supply an it's mounting space.

Mark
Would re-encasing tho old MAHO computer power supply be of use ?

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11 Mar 2021 18:58 #201851 by RotarySMP
The old Philips 432 PSU is optimised for the Phillips back plane adapter. I dont mind the little MeanWell HDR series din mount ones. They dont take much space. I might not even need 12V, if I put a Mini-ITX PSU up in the user modele with the PC.
Mark

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11 Mar 2021 20:35 #201856 by J Green
Replied by J Green on topic Schaublin 125-CNC retrofit.
Again I wrote before re -looking at your (great) You-Tube Maho conversion overview . That Phillips 432 has the vertical power supply but later versions used a smaller horizontal type ,mounted under the card cage which slid into base of card cage frame.
I think MeanWell makes a good product in the sense of long term reliably .
It's just me ,but a 12 volt DC mother Bd. and a 12 volt DC LCD display would have many advantages over using a desk top type computer power supply configuration .

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12 Mar 2021 00:17 #201912 by andypugh

andypugh
Could or would you elaborate about the 12Volt DC PC Motherboard you are using ?


I am using a JNF9C-2800 but I don't think that they exist any more.

However all these are some variant of 12V power:
www.mini-itx.com/search?q=JNF9
(Some are 12V DC only, but one is 9-36V and another is 9-24V. 24V input is probably even more convenient than 12V input for our purposes). The quad ethernet daughter board on that same page might be interesting for Mesa card use.

You can use their board finder to find others 12V boards, and with PCI or parallel port too. www.mini-itx.com/products/boards
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12 Mar 2021 07:35 - 12 Mar 2021 07:37 #201933 by RotarySMP
I wont be so space limited up in the user module, so it doesn't really bother me what PSU's the PC needs. Would be nice to get one with the 12V input, but then i would probably stumble across a monitor with a 19V need :)
I considered an Odroid h2+, but at €150+ram+SSD, I am too cheap. I can pick up a Mini-ITX board with ram and SSD from the local classifieds for under €50 any day of the week.

Fun story, I saw a mini-ITX board, loaded, for €15 in my district.
Wrote: " Hi, please call me on +664 xxxxxxx so I can arrange to see it."
Received " Piss off, you dont honestly think i am going to call some dubious foreign number do you!"
Wrote " Sorry 0664 xxxxxxx - A1 Network"

This is the largest and most common cell provider here, and I would have thought that anyone here is familiar with 664 not being Thailand.

Never heard back.

Sometime the annonymity of the internet lets peoples true natue show, and not in a good way :-O
Mark
Last edit: 12 Mar 2021 07:37 by RotarySMP.

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12 Mar 2021 08:28 #201937 by tecno
Replied by tecno on topic Schaublin 125-CNC retrofit.

Thanks, which model number are your drivers?
Mark


Lichuan B2

www.93x57r.se/tecno-cnc/CNC3000.html (still not installed :( )

/Bengt
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12 Mar 2021 10:53 - 12 Mar 2021 10:58 #201943 by Hakan
Replied by Hakan on topic Schaublin 125-CNC retrofit.
Regarding the Lichuan A4 servo driver - I just installed two of those on my milling machine with 1kW servos.
Speed mode, analog +-10V input. Works just fine as far as I can tell. As is the case with the drives I have used,
speed/position/torque mode and input source are settable through drive registers.
Last edit: 12 Mar 2021 10:58 by Hakan.
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