Unsupported Precision Round Rail Calculator

[routercnc]

Nice one Ross, looks good to me. I fed those numbers into my Gantry Spreadsheet (using tube profile with OD 16 and ID 0, length 900mm and load 250N) and got the same values for second moment of area and vertical deflection.

Out of interest, I've posted my sheet. It compares different sections and how they deflect due to vertical load and tool cutting applied torsion. Obviously, this spreadsheet only considers the gantry part of the machine.
Purple boxes are inputs, yellow boxes are outputs. There are graph tabs to visually compare sections.

Might help other people with the design process, although usual disclaimers apply...


EDIT: Updated to version 4, with much clearer layout and data entry. Also added different end conditions (from Ross's sheet).