15mm tube spanner
thingiverse
I grabbed a 15mm tube spanner to detach numerous jack connectors, hoping to repair my guitar pedal quickly. Five minutes on sketchup, then I hit print and waited for 30 minutes until it was done. Print Settings: Rafts can be anything; Supports aren't needed. A low Resolution of 0.2mm will work just fine, while Infill set at 80% should suffice.
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