Sandpaper block

Model DescriptionA set of two sanding blocks for sandpaper: one curved and one rectangular.The main body and inner insert that clamps the sandpaper strip are printed in PLA, while the twist knob/fastener is printed in PETG. The paper is clamped by the insert and bolts, holds securely and doesn’t slip during use.DimensionsCurved block:Bottom edge length: 95 mmTop edge length: 105 mmHeight: 30 mmWidth: 20 mmRectangular block:Length: 100 mmHeight: 34 mmWidth: 20 mmAll nut and bolt recesses are designed to sit flush with the surface.On the 100×34 mm block you may sometimes need to heat-set the M4 nut into its pocket — this depends on your printer’s quality and whether you get echo/ghosting or blobs on inner walls. A heat-set nut gives a very strong connection and can be more reliable than a simple press-fit.Recommended Sandpaper Strip SizeFor the 100×34 mm rectangular block: a comfortable strip length is 130 mm.For the curved block: a comfortable strip length is 224 mm.Strip width should b