SOLVESPACE -- parametric 2d/3d CAD

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3D solver capabilities - Delta Robot? (by Dario Pellegrini)

I have been appreciating SolveSpace in 2D but I am having problems moving on into 3D. In particular I have been trying to model a delta robot (eg: ) keeping the tree degrees of freedom. I had not much success until now... so I have two questions:

1. Is SolveSpace adeguate to such task
2. How to approach the modelling

Mon Sep 24 2018, 14:46:22
(no subject) (by Andrew)
I suggest that you look at the tutorial on linkages, which show how to model a complex linkage system (a Standbeest leg). This will show you how to approach the modelling.
Mon Sep 24 2018, 17:37:51
(no subject) (by EvilSpirit)
Yes, actually, SolveSpace assembly working step-by-step, not computing all the groupds simultaneously, so you have to build you mechanism inside single group as skeleton for your further assembly with importing actual details.
Tue Sep 25 2018, 04:48:55
(no subject) (by Dario Pellegrini)
Great thanks! Investigating a bit more the tutorials I have been able to build a delta robot (save file available on request).
One important feature would be to put some limits on certain angles, as sometimes the legs become entangled depending on how the head is moved. I understand that in order to try this I need to compile the EvilSpirit master branch, am I right?
Thanks again!
Wed Sep 26 2018, 06:41:08
(no subject) (by Andrew)
Would using a vertical line and a fixed length line from it to the arm joint to restrict the angle of the top arm solve your problem. A 2d example attached.
Wed Sep 26 2018, 07:35:40, download attachment arm_constraint.slvs
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