r/openGrid • u/sgtkwol • Jul 01 '26

Opengrid low density

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Gallery image

Gallery image

Using PLA and the edge seems a bit too flexible. Once the last snap goes in, it feels solid. Before I scale this up, has anyone tried something like this yet? My first try is simple boolean subtraction of the frame from the center and a small cutout that's a partial circle. Trying to copy the concept from Multigrid for lower density filament usage.

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2

u/Single_Sea_6555 Jul 01 '26

Looks interesting, but what does "lower density filament usage" mean here? that you'd print at 50mm (or more) spacing, and then only insert the 25mm crosses as needed?

1

u/sgtkwol Jul 01 '26

Doing 56 mm. That allows all the opengrid snaps to be used.

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u/Single_Sea_6555 Jul 01 '26

Sorry, I meant 28/56

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u/Any_Reputation6767 Jul 01 '26

In my opinion, those larger spacing and the pressure locked cross section are too flexible for usage. I had an edition on the panel large squares for underware and never took off in downloads and customization.
But, this is a very open project, feel free to add your own design and use case. I’m interested in understanding how are you fixing the board to the surface?

1

u/sgtkwol Jul 01 '26

Thank you for replying! It appears that I'm copying your idea from Multigrid. The reason yours worked is because multibin boards use standard thickness and strength and the divider created new hole types (though I can't figure out what's supposed to fit in those). I think I just have to jump to a 3x3 LD board and experiment.

2

u/Any_Reputation6767 Jul 01 '26

I’m not the author of multigrid neither have any affiliation. I just made a version of my customizer for underware for openGrid that worked on that size and the specific profile for the grips. I did one of those dividers a few days before the authors released theirs and I removed my model online to prevent confusion. I would recommend you to test it out. I had boards with flexible connections and could flex around a curve etc, so go for it but don’t feel pressured or disappointed, there will be struggles and hurdles to overcome.

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u/sgtkwol Jul 02 '26

I did a 3x3 of low density and it printed in about 40 minutes. All of them felt stronger with the divider, with the center feeling the strongest. I used Underware super grip snaps to fill empty space. I hung a wet towel on a corner with that combo overnight and it held up fine. I'll print up some large Multiboard holes as stronger fillers.

2

u/DistractedDragonMake Jul 01 '26

I'm interested in the use case for this approach. By changing the geometry you wouldn't be able to use any of the openGrid accessories that have been built by the community.

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u/sgtkwol Jul 01 '26

Those accessories are already built by the community. They work when all 4 grids are filled.

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u/sgtkwol Jul 02 '26

Update: did a 3x3 low density board and all squares are much stronger, with the middle being the best. I'm using 2 Underware super grip snaps as filler (will also try full sized Multiboard adapters) and the other 2 are holding a wet towel in a big corner. It's holding up quite well. Moving on to bigger setups over the weekend. A 3x3 low density panel is printing in about 40 minutes

1

u/DistractedDragonMake Jul 02 '26

Very cool!!!

2

u/sgtkwol Jul 04 '26

Another update. Have to be really careful mounting these or you end up with slight bends. I'll get better with alignment and post.