This is an anti-vibration foot for 20mm aluminum extrusion. I had good results using semi-flexible filament. I added some anti-sliding pad. They were specifically designed for an Ender-3 printer.
This is a stand for the Kotto Fume extractor that can be bought from Amazon. It raises the fume extractor by 3 cm. It can be printed without support.
This is a spool holder designed for the Prusa MK3S or any Prusa i3 printers. The dimensions of the top of the main plate shoud be 6.25mm x 40mm.
This is a small wire holder. It is designed for 2.36 mm wires in diameter including its insulation. It can be printed without support if printed on its side.
Soldering electronic components using a large solder spool of 454 grams or so is quite inconvenient even if it is mounted on a solder spool holder. I prefer to