Anyone got a manual for a StepMasterNC 4 axis board?

Anyone got a manual for a StepMasterNC 4 axis board?

This topic has 6 replies, 3 voices, and was last updated 20 May 2021 at 14:39 by Martin Connelly.

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20 May 2021 at 09:51 #15355
wilson logan 1
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@wilsonlogan1
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20 May 2021 at 09:51 #546013
wilson logan 1
Participant
@wilsonlogan1
Hi All,

Bit of a long shot, does anyone have a manual for any StepmasterNC control board ?

I'm stuck as to how to power the thing.

I bought it maybe 10 years ago and the company is defunct, the website is closed and the links to the PDFs on medw.com are all dead.

There's VBB IN which has two terminals, neither of which are marked +ve & -ve so… they might both be one or the other & the opposite polarity is fed in, in at an entirely different point.

Anyway, all help gratefully received.

Cheers,

Wilson.
20 May 2021 at 10:29 #546018
Stuart Smith 5
Participant
@stuartsmith5
Wilson

I don’t have this board, but out of interest, I just looked on the internet and found these 2 pages which might help:

**LINK**

**LINK**

the second one is for Aliencnc board, but there are suggestions it is the same board with a different name.

Stuart

Edited By Stuart Smith 5 on 20/05/2021 10:29:53
20 May 2021 at 13:44 #546046
wilson logan 1
Participant
@wilsonlogan1
Thanks Stuart but its not the same board layout.

I'm not actually sure these companies are related.

The board design is quite different.

Possibly same company but mine is an earlier board ?

I have tentatively connected VBB IN but I am not happy about actually applying power till I am sure of the polarity.
20 May 2021 at 14:22 #546050
Stuart Smith 5
Participant
@stuartsmith5
Is it possible to trace the tracks from the connectors? Or test to known components .

Stuart
20 May 2021 at 14:26 #546051
Martin Connelly
Participant
@martinconnelly55370
Is either of the VBB terminals connected directly to the GND of the bottom right connector strip or the bare pads in the corners? It would be a reasonable guide to polarity if it is a DC supply.

Martin C
20 May 2021 at 14:39 #546052
Martin Connelly
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@martinconnelly55370
There is a 3 axis board schematic here, might help.

Martin C
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