Originally Posted by harryn  Hi, I am studying different designs and component costs. Could you tell us about how much the rack and pinions costs ? |
The racks cost 16.50/ea from stdsteel.com - with shipping it was $74 for three racks. They don't accept credit cards which is odd. And they don't sell gears, so I'm still sourcing them. I need to order the gears and an acme screw for the Z axis and I should have everything to complete it.
I'm up to 20 hours of labor so far. Kinda had an oops moment, didn't take into account the rail and bearings for the lower gantry support and ended up with very little room underneith, so it's gone. Thats what I get for building without much of a design. It is very sturdy with just the top support, and now has rails on it. This thing is so smooth, it could probably be driven on just one side with no problems.