Quote Originally Posted by ba99297 View Post
As for the pulleys i have to say that my initial planning was to use 2:1 gearing but if i saw that 3:1 would be better, i want to have the room for the new pulley. So i use such big pulley in my plans just to be sure that future changes to the gear ratio will not need gantry rebuild. Other than the pulleys do you see something wrong or something that could be correted
Maybe if you had enough adjustment on the motor bracket, it would allow you to use the same belt for all size pulleys. I tried to keep all belts the same size so no need to keep lots of spares, I ended up with two sizes.