Stupid battery charger adjustment knobs

These are adjustment knobs for the Stupid battery charger...https://www.thingiverse.com/thing:3207855

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I created these eBay links where you can find all common filaments and spare parts at the best prices. These are just links to selected eBay and Aliexpress items, where I normally buy spare parts and materials for my printer, prices are excellent and products are good. If you buy something from here you will support me a little bit to make these projects.

1Kg PLA Filament - eBay
1Kg ABS Filament - eBay
1Kg TPU Filament - eBay
1Kg PET Filament - eBay

Complete extruders - eBay

Heat blocks and heaters - Aliexpress

Standard nozzles - eBay - Standard nozzles Aliexpress

Volcano nozzles - eBay - Volcano nozzles - Aliexpress

GT2 pulleys - eBay - GT2 pulleys - Aliexpress

GT2 belts - eBay - GT2 belts - Aliexpress

Linear bearings LM series