I spoke with others who had built the dataCut, as well as Chris, and some feedback from the board. Chris highly recommends Kerk, and has great success with heavy use. Others have used McMaster or eBay screws with nut from DumpsterCNC with good success.
I spoke with a Roton Engineer and he said they are just the same as Kerk, except Kerk has TFE coating - he said to make sure my screws are kept lubed and the performance and accuracy will be the same as Kerk.
I bought the lead screws and anti-backlash nuts from Roton (thanks Ger21) The nuts are Delrin and about the same price as DumpsterCNC. Total was $175 for 3 lead screws and antibacklash nuts. 1/3 the price of Kerk.
I also ordered up all the recommended belts, pulleys, cable carriers, and bearings from McMaster for $450 bones.
Now I just have to wait for the parts to come in, then adjust the CAD files to fit. |