After getting my Hadron up and running and a very good friend seeing it action asked, "if I could build one that would print a part that is basically 11" long and 9" wide and about 4" tall". So this is going to be a experiment to see if it will work. I not going to build a heatbed for it until I see how well it will print PLA first.
I'm using my Bridgeport mill and 14" X 48" Clausing lathe to make all the parts. The fab parts are all made out .125 stock and the spacers for the V wheels and motor are out of 3/8 diameter stock. The carriage will be made out of 2 pieces of plate and a piece of 3/4" angle. I bought the makerslide, "V" wheels, eccentrics and belt idlers from Invendables. MXL drive pulleys from Stock drive, Nema 17's came from e-bay and I bought the the Ramps kit with smart LED controller from Reprapdiscount. For the extruder, I will use a heat sink and nozzle from QU-BD and will make the rest of the parts.
Here is the carriage
Today I have it all assembled and will start wiring it. I only drilled the holes in all the plates that I would need to get it assembled. For the limit switches and other mounting, I will drill them when I figure out where I want them.
For the Z axis I'm using 3/8" 12 acme like I used in the hadron as it has worked very well.
I hope to have it printing by Thursday. I still need a piece of glass and springs for the wiring yet.
Rodney