450x300 Aluminium extrusion build from scrap/used parts

[driftspin]

Well 50x50 does not sound like a lot.
webbed in the bed it could be enough.

If you decide to go 50x50 at least make sure it is 4 or better 5mm wall thickness, much easier with tapping threads.

For the size i would go 80x80x4

The main thing is your total footprint.
It is 1000x700 right?

When you can run FEA on your design you know.

I did some basic checks on my design.
Quickly went for 80x80x4 bed and 80x120x4 gantry parts.

Get end caps on the box section.


I think you need to make the gantry as rigid as reasonably possible.




You can easily make the gantry 80x120...
Massive impact on rigidity.
Only 3 cm extra in the design.


Grtz Bert.


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