Unsupported Precision Round Rail Calculator

[Ross77]

Hi Andy.

Try this version, I have back saved it in compatibility mode. It is best if you have a play with the figures as it with give an idea how the weight and length affect the deflection. and it might scare you.....:twisted:

You didn't state a bar size so a quick calc using 25mm dia. 1500mm span and 250N (25 kg) load the best case deflection would be just over a mm but worst case is 5mm depending on the restraints.

You really need additional cross rails to support the gantry sides as at the moment the rails are taking all the loads as well or you will have to assume simply supported.

I think the biggest problem you will have is the bounce caused by vibration. but that can be sorted by not letting the torch travel at resonant frequencies and keeping the acceleration and deceleration down.

Let know if you can open that one either.