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14-05-2016 #1
It sounds like you've got a good plan, and found the majority of the required information.
Nothing wrong with trying what's already there. By keeping the NextStep card, you should also have all the required supply voltages already there, as I'm fairly sure the bottom board contains all the rectifiers/capacitors, with the top board just being the actual motion controller.Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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15-05-2016 #2
OK, hit my basic lack of knowledge at step 1 - select a BoB to get parallel to the 96-way connector. I thought all BoBs were about the same, but now bewildered by the choice! I don't mind investing in a decent one, just can't work out what I do and don't need
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15-05-2016 #3
Google pmdx126
You will also need a pmdx104Last edited by andy_con; 15-05-2016 at 08:18 PM.
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15-05-2016 #4
Have you had a read through this thread? - http://www.mycncuk.com/threads/9829-...nford+novamill
It's for a Novamill, but the general cabinet wiring will be very similar.Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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15-05-2016 #5
no ive not.
sorry he said it doesn't have an atc, scrap that you wont need any pmdx. any break out board will do
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15-05-2016 #6
Andy, that post wasn't aimed at you. It was more for some general info for John.
A PMDX BoB is still a possible optional, but in all honesty, that cheap 24V capable one that John S linked to in that other thread would probably do the job at a fraction of the cost.Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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16-05-2016 #7
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16-05-2016 #8
That's quite a bit different!
They're not using the onboard stepper drivers, so there's not really any point in keeping any of the existing motion controller boards. You just need to find a manual for the three stepper drivers that are fitted.
The biggest thing you'll need to work out is the wiring for the relay board in the centre.
Is the existing controller using USB? If so, does it still work, or do you not have the required software?Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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16-05-2016 #9
m_c - the existing controller interfaces via USB to the Denford software and all works fine. It's great for students, but the machine is so capable that the project is to do the conversion, both to learn about control and to get to more "standard" software.
The steppers are MSD980 Microstepping Drive http://www.motioncontrolproducts.com...ing-driver.pdf
The cabinet is nice and open so it's easy to see where each wire runs. A few other pics...
Last edited by johnparker; 16-05-2016 at 07:38 PM.
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