Ping Pong Paddle

prusaprinters

This is a functional, full-sized ping pong/table tennis racket by [https://www.thingiverse.com/juholga/designs](Juho Jalava on Thingiverse). I've tweaked the design slightly to make it print well on my Prusa i3 MK3S+. It also serves as an excellent test/benchmark print for first layer calibration, and warping.Additional Notes:I did make a variant with a handle printed directly on top of the paddle, but found it works better to print the handle sections separately and then glue them on.I tried using a rectilinear infill – twice. Both attempts failed, with the paddle peeling apart between layers when bending/twisting it.The first layer is critical. The print will fail if you try to increase the first layer speed above 50%, or if your first layer calibration is not perfect.Watch the first layer very carefully. I ruined an entire hotend by leaving it unattended. Once you get past the first and into the second layer, you can leave the printer to do its job.I've uploaded both PETG (recommended) and PLA gcode:PETG: use textured steel sheet; expect some light warping on the handle.PLA: use smooth PEI coated steel sheet; no warping; you may want to rough up the surfaces a little for better grip when hitting the ball.