Quote:
Originally Posted by cglrcng
Both of those thingverse available clip designs would work (but may be very brittle due to voids internally, so slide the tanks in and do not attempt to snap them in). SNAP! is the key word there....
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The key with any 3D FDM item is to make sure that the threads of filament as they are printed for the shell are perpendicular to the line of stress. Where I have seen parts break is when the stress would push the layers to separate.
So the models we use are printed on their side.
PLA would be a bit brittle and I would suggest printing in ABS. Although I printed several test parts in PLA and snapped tanks in/out several times with
no breakage.
If you have access to a printer that will do Nylon that stuff will not break.
I print ours with 40% infill and 4 shells and there is nothing we have seen now that indicates they will snap if you make the wall thick enough (1/4" min but 3/8" recommended).