This still makes no sense, you say the distance between 1 and 2 (the width of the bearing slider, and in the case of the Igus stuff, this is the distance between the two slider vblocks) needs to be HALF the distance between the bearing (1 and 2) and lead screw.
The leadscrew is directly under this, about five inches. This would mean that using this rule, the guide rails only need to be 2.5 inches apart. This cant be right?
Did you mean that the 1-2 distance needs to be half the distance between 1&2 and the top leadscrew? If this is the case then I get what you mean.
I also dont understand what you mean by the 1-3 distance. When dealing purely with the Y axis, the width shouldn't matter, a machine twice as wide would present exactly the same challenges, apart from the extra weight of the parts.
I had been wondering since I had started drawing this that the bearings might bind and was considering widening this by adding a second igus carrage on either side. Doing this though either reduces my Y axis travel or means I have to extend the length of the cutting bed. Doing this means longer rail, longer screws etc.
I think all I would need to do to make this design work, is to add another igus carrage on either side to stop it binding....  |