Devtronic CNC Controller #406
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Quick review how this board fit into my bench top milling machine: |
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Looks like link was broken. I fixed it. |
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Hi everyone. This board is not for sale anymore. I didn't sold a single unit within a month(with probably a good thing), and then I finally installed one on my benchtop milling machine(before tested it only at bench). Within 10 minutes DC-DC converter that makes 12V and suppose to work with input voltage up to 60V(my machine has 48V power supply) stopped working. May be back EMF from motors destroyed it(which unlikely), may be it is a fluke, or may be I shouldn't purchase IC for this converter from AliExpress... so, I installed dedicated 12V power supply for my machine and did the right thing: pulled out this boards from sale. On reddit I had a lot complains that there is no optocouplers on inputs. I also realized that there is another UART available which makes possible option for Modbus spindle. Now I considering to make another board, with optocouplers on all inputs, option for Modbus spindle and to order it assembled to avoid potential issues with counterfeit ICs. The only question that I have left if I should invest time and money into product with such low demand that probably will sit on my shelf for quite a while... any thoughts? This is the render form EasyEDA: |
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New V2 partially assembled boards just arrived! I assembled one for testing: |
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Is bigger better? Not if you trying to build compact CNC machine. Stepper drivers have connectors on one side and can be stacked like sandwich. CNC boards that I found have connectors on multiple edges and can't be stacked(at least if you isn't willing to have unmaintainable wire mess). So, I made my own:
It support 5 axis(in theory, I am working on profile for this board in Web Builder), all inputs protected by transistor(NPN sensors should be used), it has 32KB FRAM onboard to store setting and it can be powered directly from 48V power supply(useful for small machines that uses NEMA23/24 on 48V).
It also supports control via UART... which will be my next project! Stay tuned.
More info is there: https://github.com/Devtronic-US/CNC-Controller
And if you want one, you can buy it there: https://www.etsy.com/listing/1617157550/
Stock is limited, but if there will be demand, I will order more.
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