Thanks NewPerfection.
Now for my next question. I'm thinking of switching the rods from 6mm to 8mm for two reasons. First, I'm planning to use the parts from my Printrbot Simple to build the 3DR, and it has 8 LM8UU bearings in it, which means I wouldn't have to buy any bearings. Second, it seems like LM6UU bearings are hard to get here in the US at a reasonable cost. The 6mm bearings seem to be 5-10 times more expensive than the 8mm bearings. Is there a good source for LM6UU bearings in the US? Or should I just change the design to use 8mm rod?
Now for my next question. I'm thinking of switching the rods from 6mm to 8mm for two reasons. First, I'm planning to use the parts from my Printrbot Simple to build the 3DR, and it has 8 LM8UU bearings in it, which means I wouldn't have to buy any bearings. Second, it seems like LM6UU bearings are hard to get here in the US at a reasonable cost. The 6mm bearings seem to be 5-10 times more expensive than the 8mm bearings. Is there a good source for LM6UU bearings in the US? Or should I just change the design to use 8mm rod?
