I used 1/2" long springs, hot glued in place. Instead of the rubber grommets.
thingiverse
I used half-inch long springs, hot glued in position instead of rubber grommets. The result is a noticeably stiffer setup. I haven't yet put it to the test on my X-Uav plane. You can find an assortment of these springs at Harbor Freight warehouse. Print Settings Printer Brand: Deltaprintr Printer: Deltaprintr Kit Rafts: No Supports: It doesn't matter. Infill: 80%
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