Handy Flat Sanding Block with gridfinity bin (70x115 & 93x115 paper sizes)

When I was filing off the remaining brims on a 3d-printed object with sand papers, I wanted a handy flat sanding block that is useful both in my hand or on top of my workbench. This Handy Flat Sanding Block is for such demands, sanding small objects with a small sheet of sand paper (paper size compatibility is given below). 📷 Image redacted — claim this model to add your own media 📷 Image redacted — claim this model to add your own media Two ends of a half-cut commercially available sand paper strip can be firmly pinched between the two parts of the sanding block and locked with the flat nut. This compact sanding block is not for sanding large-area but really handy for sanding edges of 3d-printed objects. 📷 Image redacted — claim this model to add your own media 📷 Image redacted — claim this model to add your own media 📷 Image redacted — claim this model to add your own media 📷 Image redacted — claim this model to add your own media The sanding block has four shallow grooves at the corners to attach rubber feet. The feet allow you to use the block put on top of your workbench. The feet also protect the back side of the sanding block from being scratched by other sanding blocks when stacked on each other. 📷 Image redacted — claim this model to add your own media 📷 Image redacted — claim this model to add your own media It also comes with a dedicated gridfinity refined compatible 2x2 bin, which compactly holds four sanding blocks with sand papers of different grit sizes on and a small bunch of cut sand paper, or just five sanding blocks. 📷 Image redacted — claim this model to add your own media 📷 Image redacted — claim this model to add your own media 📷 Image redacted — claim this model to add your own media 📷 Image redacted — claim this model to add your own media Sand paper sizes Two models are provided with different widths. 📷 Image redacted — claim this model to add your own media Wider version: compatible with 93mm x 115mm sand paper Narrower version: compatible with 70mm x 115mm sand paper 📷 Image redacted — claim this model to add your own media The standard full-size sand paper is 280mm x 230mm. The smaller sand papers found in shops are always integer division of this size. I found variety of them: 93 mm x 230 mm is popular in Amazon. 70 mm x 230 mm is popular in 100yen shops in Japan. 140 mm x 115 mm is also popular in 100yen shops in Japan. You can half-cut these papers to have a sheet of either 93mm x 115mm or 70mm x 115mm size. 📷 Image redacted — claim this model to add your own media Printing No support is needed. Print the top part in a standing position as shown. Brims will help printing the part. I printed mine with 0.4mm nozzle and 0.2mm layer height with PETG. PLA should also work. 📷 Image redacted — claim this model to add your own media Updates 2025-07-20 Engraved fitting sizes of sand papers on the blocks as Sanding Block 93x115, 115x140 by PointNemo has. Renamed the models to clarify the compatible sand paper sizes. 2025-07-22 Fixed the broken model for the case. Happy printing!