Originally Posted by
old man emu
No 1: Contact the vendor of the steppers and see if you can return them for credit on simple bipolar steppers (single shaft) of similar holding torque. Using simple steppers will let you use the RAMPS board.
No 2: Get a 30W regulated power supply (about $30 in thE bay. You want some electrical grunt to move those 425s.
No 3: Become acquainted with the approximate values of Metric measurements to Imperial (1/8" ~ 3mm; 1/4" ~ 6mm; 1/2" ~ 12.2mm; 1" = 2.54mm. If you are experienced estimated the size of nuts and bolts by eye, then you will not have any problem. I grew up using Imperial, but Metric is the standard in Australia now. I got back into imperial while working in the aviation industry, so now I use both.
No 4: You'll have to do your own research on multiple heads. I'm having enough trouble with one extruder head (I've given up doing anything with the one on my shoulders.)
Why are you on the computer. Get your Cannuck butt out to the workshop and start building!
Old Man Emu