how do you make sure the top rectangle of the machines is completly flat. If it is not then when you put your rails on their, they wont let the bearings travel smoothly if your gantry is ridged. Or your tool head will change height as it travels. The only way I can think of is laying it all out on the floor, making sure it is square and welding it up, but you are then only going to get it as flat as the concrete floor...
thanks for the help... |