450x300 Aluminium extrusion build from scrap/used parts

[driftspin]

Thank you for your kind words :) I've moved the x axis linear rails to the top of the gantry as suggested. I've also rotated the base plate to give me more usable space in the x direction. If I can find a bigger base plate I may use that, or even welding a steel frame....We'll see soon.
I've also added bracing from the y axis rails to the base plate. Do you think it would really help on the x axis too? Those braces also serve as the new plates for the bearing supports for the ballscrews.

As for the z axis, I've moved the linear rails to the moving part of the axis and added side supports to give a bit more strength.
Anything else that jumps out at you?

Hi Nealieboyee,

Yes like that. maybe make a full box around the gantry... just make sure no play can occure... i think you have draw side plates for that.

So what size materials would you like to machine? Z is kinda low..
Clamping solution and spoilerboard accounted for?


So is there a butget reason to go stepper direct mount on the bascrews?


If not, 1610 with belt pully reduction 2:1 is popular for several reasons.
15 teeth on stepper, 30 on ballscrew.


BTW what are the cutouts for in the base plate? now they reduce rigidity and make the endplates redundant.

So is the size set or still looking for the right parts to come by?


The best advice ever offered by this forum:

Dont buy any electronics kit / balscrews / rails , before plan is completely done and everything fits in cad.

More experienced forum memeber can help you pick steppers psu and so on.


I only bought stuff when i ran out of work on every step.
This saved a lot of money for me.


Grtz Bert.

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