[Khalid]

OMG..Another adventure...Will closely follow YOU my friend..
How straight are the channels..also if you are going to weld the frame, did you get any war-page?

[CarveOne]

OMG..Another adventure...Will closely follow YOU my friend..
How straight are the channels..also if you are going to weld the frame, did you get any war-page?

Hi Khalid,

The channel is as straight as my ability to measure it with the straightest 48" aluminum rule I have. I will expect to install some thin shims between the X axis rails and the channel where it is necessary. I was able to weld it with no serious misalignment. I use clamps and check the alignment, then make short welds that do not heat the metal excessively. Heat control is the key to making assemblies that do not warp. If the joint is not aligned well enough, I cut it free and weld it again.

This is what we call "old school" construction. Aluminum extrusions are the current popular method of construction, but I prefer steel for a number of reasons other than the lower cost.

CarveOne