Adding steel channel to x axis c-beam aluminum extrusion - more rigid?

[wiremonkey]

https://youtu.be/SwHb75_GWwM

Similar Threads:

• Adding beam combiner to 50W eBay Laser (SH-G350)
• Steel beam for x axis?
• where can you get an aluminum extrusion with embedded steel shafts for v-wheels?
• Comparing aluminum extrusion to mild steel