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Stepper Motor Driver Adaptor
#1
Information 
I have made an adapter that will allow you to use an A4988 or a DRV8825 stepper driver in a stock DaVinci. I have a 1.0A and I know the 2.0 have the same issue. In case you live in a cave or something, the DaVinci printers use the same driver for the stepper motors that everyone else does--except they made theirs about 2/10 of an inch larger and removed the current adjustment pot. With these adapters you can simply plug in a standard A4988 or DRV8825. 

       
It uses a small circuit board and two sets of eight pin male and female headers. I am posting the Eagle Cad design files (not that it is all that complicated,) and the GERBER files in case anyone wants to make their own. I also have some sets of four boards listed on eBay with free shipping in the United States.

eBay listing: http://cgi.ebay.com/ws/eBayISAPI.dll?Vie...1940872229

If you are not in a hurry, you can also pick up some ready made sets of the board only pretty cheaply at DirtyPCBs.com (minimum of 10 boards, 40 adapters.) http://www.dirtypcbs.com/view.php?share=...86547f99e9

enjoy!


Attached Files
.zip   A4988_Adapter_Eagle.zip (Size: 51.02 KB / Downloads: 5)
.zip   A4988_Adapter_GERBER.zip (Size: 175.67 KB / Downloads: 5)
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#2
Just as a faster alternative to DirtyPCB, you could upload this to OSHPark and share the project here as well. My experience with them is you typically receive the boards 2-3 weeks after placing the order depending on your shipping selection.
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#3
(03-21-2016, 12:26 PM)tjb1 Wrote: Just as a faster alternative to DirtyPCB, you could upload this to OSHPark and share the project here as well.  My experience with them is you typically receive the boards 2-3 weeks after placing the order depending on your shipping selection.

They are more expensive for fewer boards, but you are right, DirtyPCBs is really slow, or at least the free shipping is. OSHPark also does ENIG finish which is nice. I may give them a try on my next project, thanks for the tip.
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#4
(03-21-2016, 12:26 PM)tjb1 Wrote: Just as a faster alternative to DirtyPCB, you could upload this to OSHPark and share the project here as well.  My experience with them is you typically receive the boards 2-3 weeks after placing the order depending on your shipping selection.

I have never used OSHPark before, I tried a PCB service previously called Seeed Studio Fusion https://www.seeedstudio.com/fusion_pcb.html

I'm in California, the boards made in China and i received the boards 2 weeks after placing the order. Moreover, Seeed is cheaper than OSHPark.
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#5
(03-21-2016, 04:20 AM)Menneset Wrote: I have made an adapter that will allow you to use an A4988 or a DRV8825 stepper driver in a stock DaVinci. I have a 1.0A and I know the 2.0 have the same issue. In case you live in a cave or something, the DaVinci printers use the same driver for the stepper motors that everyone else does--except they made theirs about 2/10 of an inch larger and removed the current adjustment pot. With these adapters you can simply plug in a standard A4988 or DRV8825. 


It uses a small circuit board and two sets of eight pin male and female headers. I am posting the Eagle Cad design files (not that it is all that complicated,) and the GERBER files in case anyone wants to make their own. I also have some sets of four boards listed on eBay with free shipping in the United States.

eBay listing: http://cgi.ebay.com/ws/eBayISAPI.dll?Vie...1940872229

If you are not in a hurry, you can also pick up some ready made sets of the board only pretty cheaply at DirtyPCBs.com (minimum of 10 boards, 40 adapters.) http://www.dirtypcbs.com/view.php?share=...86547f99e9

enjoy!

Thanks for sharing the design, i'll send it to Seeed Studio for pcb manufacturing because they are a litter cheaper than dirtypcb, hope the production progress goes well  Smile
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#6
(05-17-2017, 10:01 AM)Carowing Wrote:
(03-21-2016, 04:20 AM)Menneset Wrote: Thanks for sharing the design, i'll send it to Seeed Studio for pcb manufacturing because they are a litter cheaper than dirtypcb, hope the production progress goes well  Smile

Wow, Seeed has really come down in price since the last time I looked! Half the cost and twice the size... Some houses do take exception to panelizing the boards, although I didn't do anything fancy so I doubt it will be an issue at all.

Please report back as to how it goes for you, I would really like to know.
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