Quote Originally Posted by silyavski View Post

Ok, you will weld 2 beams together for the gantry, i did the same , but where are the side plates that are soldered to them at both sides. They will bend and if not, they will vibrate. They can not be left open.


Gantry legs. i see one plate in the middle that will reinforce them . One is enough against left right bend, but not against twist. i would put 2 on each leg so they form a box.

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heya silyavski

i agree ! end caps are a must ! i intend to have a few internal webs to prevent twist

im not convinced on this one ... if there was only one arm, then yes for sure , but the other arm of the gantry prevents the twist

i think for now im going to go with filling the frame with sand ... but the gantry , im going to try out a epoxy fill