Sanding block for belt sander belts

prusaprinters

<p>Sanding belts are of much better quality than the usual sanding papers. That's why I have build sanding blocks from wood and purchased a commercial model. Now I wanted more of them to have a block for all grits I usually use. However, I didn't want to spend another 20+€ for a commercial one from Milescraft nor spend the time to build one from plywood again.</p><p>The design was straight forward as I had the required dimensions from the previous designs and it took less than 45mins. However, print time is around 20h but with the very good but cheap PLA I use they only cost me around 3.60€ per piece.</p><p>The STL files contain designs for 75x533mm and 75x457mm belts but I only build and tested the ones for 75x533mm as these are the only ones I use and have.</p><p>Print orientation is as they are shown in the STL-files. Support: rear from bed only, front everywhere and eccenter none. Infill: 10% cubic with double line except for eccenter where I used 40% cubic with double line.<br>The design is for a pretty tight fit. Any residue from the supports has to be scraped/filed off!</p><p>Yes, the first part turned out pretty colorful as I ran out of filament. As I want two blocks anyhow I will just print the second one in the correct colors and fit them together so they turn out in uniform color.......</p><p>A slightly more detailed project report in German language can be found here: <a href="https://www.die-heimwerker.net/t70f18-Bandschleifkloetze.html#msg19821">https://www.die-heimwerker.net/t70f18-Bandschleifkloetze.html#msg19821</a></p><p><strong>Print Settings</strong></p><p>Printer brand:</p><p><a href="https://www.amazon.com/ANYCUBIC-Photocuring-Monochrome-Off-line-Printing/dp/B08Q394GQ1?dchild=1&amp;keywords=photon&amp;qid=1617126624&amp;sr=8-3&amp;linkCode=ll1&amp;tag=tv-nothing-20&amp;linkId=bf56b1e55751634fd84c577f300c3e86&amp;language=en_US&amp;ref_=as_li_ss_tl">Anycubic</a></p><p>Printer:</p><p><a href="https://www.amazon.com/ANYCUBIC-Printer-Patented-Filament-300X300X305mm/dp/B083JB2YTW?dchild=1&amp;keywords=All-metal+mega+anycubic&amp;qid=1617126750&amp;sr=8-4&amp;linkCode=ll1&amp;tag=tv-nothing-20&amp;linkId=d03d097daab291156429ce034ca28e0d&amp;language=en_US&amp;ref_=as_li_ss_t">i3 Mega S</a></p><p>Supports:</p><p>Yes, see text</p><p>Resolution:</p><p>0,3mm</p><p>Infill:</p><p>see text</p><p>Filament material:</p><p>PLA (PETG or ABS/ASA might be better)</p><p>&nbsp;</p><p>2022-04-04: Someone printed the 457mm Version and confirmed that I got the dimensions right.</p><p>&nbsp;</p>