Here is info about me, my goals, status
- Name: David
- Country: Canada
- Schooling: Currently attending University
- Field of Study: Combined Computer Science and Business Management
- To build a RepStrap/CNC platform that has quickly Interchangeable/Multiple Tool-heads.
- To contribute to the RepRap community, via wiki, and hopefully The sale of RepRaps kits/parts to help this community grow.
- Learn More than what I already know.
- To help in the development of a basic sewing machine / Embroidery attachment for the RepRap.
Acquiring Parts / Starting to Assemble
- Here is what I have so far:
- 100 Sanyo Denki, Nema 17, Bi-Polar 6 wire stepper motors, Type: 102H5208-10U41 , 59oz-in holding torque.
- with a 21 tooth MXL 1/4" wide pulley on each.
- cost me $278/100 = $2.78 for each motor with shipping
- However, getting the data sheet for theses was a royal pain, even at that I still needed to update it.
- 60 T&L International Stepping motor, Bi-Polar 6 wire stepping motor, Type: 42BYG401-06A, apx 31+oz-in holding torque
- with a 28 tooth mxl 1/4 brass pulley on each.
- $300 / 60 = $5 each with shipping, but they still have a gear head and it is the same sad story on ebay $15-40
- the motors sound grainy when turned
- The Brains:
- Motor Drivers:
- Ended up getting some polulu motor drivers when they went on sale for my first reprap
- A4988 Polulu drivers
- I bought components for "EasyDrivers"
- for when I get around to playing with making circuit boards
- They will provide 750mAmps at 30v per phase
- Structure (aka Frame):
- 8 Hardened steel rods I salvaged from a bunch of old printers for the slides
- 6 3ft 5/16 galvanized Threaded rods
- 5/16 nuts
- 5/16 external tooth washers
- 100+ 1/4 USS washers
- USS type are NOT CONSISTENT IN THICKNESS(0.51" - 0.90"), they need presorting so they are 0.01" of eachother
- ^ know what, forget presorting, as long as the nuts are in the right spot, the washers can be as big as they want to be.