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23-06-2016 #11
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24-06-2016 #12
Ive done a Denford Triac mod to a CS Labs unit. I can help answer a few questions.
1. The spindle drive needs to be isolated. A new sprint 1220i drive is around £250.
2. The ATC needs that Z is set roughly at Z + 30 from home. This is set for me via my macro for M6 in Mach 3.
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24-06-2016 #13
You do not need a new sprint card, ignore that advice. You just need to use a v4 or v5 board, they work perfectly
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The Following User Says Thank You to andy_con For This Useful Post:
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05-07-2016 #14
Gents,
Been away for a while, just catching up now. Thanks for all the input been very useful, especially Andy. Think I have enough to be getting on with now, sure I will have more questions down the line.
Mike
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19-07-2016 #15
hi
im rob i now own diycnc
im always open to sugestions to improving products
cheers rob
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12-01-2017 #16
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26-03-2017 #17
is it still possible to buy the v4/5 spindle boards? DIY cnc seems to have disappeared.
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19-04-2017 #18
Hi
I also need to replace the V4 board in Denford triac Mach 3 conversion. I contacted Roy formerly of diycnc who had this to say "Sorry, I sold the business back in 2015 to the guy who advertises the plasma cutters.
He sold all the boards untill the end of last year but now just concentrates on his own machines.
No spare boards, he had everthing."
I did a little googling and found this https://cnc4pc.com/motion-control/sp...rol-board.html Do any of the members here think it could be a replacement for the old V4s? I'm not all that hot on electronics but it superficially looks like it may be similar.
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20-04-2017 #19
Looks like we both came up with the same research, it looked like it would work to me too, I did a bit of reading on it and it does seem like it would work coupled with the sprint board.
The only other possible solution I came up with was coupling the UC300 ETH 5 LPT with a cheap Opto isolated bob with analogue outputs into the sprint. its a much more expensive option but would serve 2 purposes - 1. as a motion controller and replacing the parallel port with Ethernet. and 2. As the spindle speed control board. From what ive read it would work, but i havent gone that route yet myself so do your reasearch dont take my word for it!
I'm someone will chime in and tell you a better option now ive mentioned it though.
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20-04-2017 #20
Hi Benja
I spoke with my learned friend AngelTech (from the Denford data forum) last night and showed him the possible replacement board. He had this to say: "first off, no that board is no good for an unisolated spindle drive like you have. There is no dc isolation on the board. It would be ok for an isolated spindle drive or an inverter."
So my new plan is to swap my brand new Sprint 1200 for the 1220i (fully isolated driver) and see if that works. I also spoke with Rob Rossini on the phone ( who was very helpful) who said he may be making some more V5 (the diycnc upgrade to the V4 boards) at some point soon.
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