Reply with QuoteWhy not test to see how much it moves? Clamp the rail down, bolt on an extension to the carriage that approximates the distance where the center of the spindle will be, apply a side load, and use an indicator to measure the deflection.
Question regarding strength of single 20mm linear carriage
Hi all,
I've been using my CNC router and love it a lot, but I have a few linear carriages and rail sitting around gathering dust, so I thought about building a LIGHT duty engraver/router for wood only.
If I had my Z axis on one 20mm/25mm rail only (with two carriages), how resistant to twist would they be due to side forces when milling across the table? Bear in mind the length of that rail will be 320mm or less and it is 25mm rail. The carriages are THK and INA. Having one rail only would keep my z axis quite narrow, allowing me more x axis movement.
Thanks
Neal.
Similar Threads:
Re: Question regarding strength of single 20mm linear carriage
Why not test to see how much it moves? Clamp the rail down, bolt on an extension to the carriage that approximates the distance where the center of the spindle will be, apply a side load, and use an indicator to measure the deflection.
Re: Question regarding strength of single 20mm linear carriage
What the rail is mounted to may have a large effect on how rigid it is.
Gerry
UCCNC 2017 Screenset
[URL]http://www.thecncwoodworker.com/2017.html[/URL]
Mach3 2010 Screenset
[URL]http://www.thecncwoodworker.com/2010.html[/URL]
JointCAM - CNC Dovetails & Box Joints
[URL]http://www.g-forcecnc.com/jointcam.html[/URL]
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
