Lead-screws upgrade kit

thingiverse

Leadscrews plate and bracket for Makerfarm Pursa printer. For this upgrade you will need to buy: 2pcs of 5x8mm coupler. 2pcs of 300mm length, 8mm diameter lead-screw with 2mm pitch and 4 starts (this was my specific choice). 2pcs of compatible brass nuts. Notice that the bracket itself won't be enough because the motor centerline need do move a bit forward to mach the bracket centerline! You will also need to make a small change (that i had drafted) at the cofiguration.h file: define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,400,841} // (revolution/microsteps)/(pitch*starts) You can calculate your own based on this logic. And this is why you should do this upgrade yourself:http://www.protoparadigm.com/news-updates/accuracy-vs-precision-and-threaded-rod-vs-leadscrews-in-3d-printers/ Of course i will be happy to assist further more. Please upload a picture of your printing and give me feedbacks if you like.