DIY 3D Printed Mini Hobby Belt Sander

thingiverse

07.10.2018: V2 is out. You should only print suffixed with _V2. Other previous parts are suitable with new ones. Changes are: * 5mm more room for motor driver in X axis in Case part * Added magnet holes for Case and Dust_Bin to connect them more firmly. Also there is a male and female sections to connect them more precisely. Magnet is here: https://www.aliexpress.com/item/10pcs-10-x-5-x-2-mm-Super-Strong-Round-Permanet-Neodymium-Magnets-Rare-Earth-Powerful/32887877712.html * Added a 40mm fan to cool the driver. Be careful about the voltage of the fan and the input voltage. Input should suit to the fan's voltage range. * Belt_Tightener_Case and Belt_Tightener_Roll parts are revised -------------------------------------------------------------------------------------------- ** EN: ** I needed a belt sander for small hobby projects. So I made one with 2020 aluminum extrusions. Belt is 15mm wide and bought a 1 meter one and cut into 15mm wide pieces then bonded the pieces to make a suitable one for my sander. You can buy here: https://www.aliexpress.com/item/1meter-Emery-Cloth-Roll-Polishing-Sandpaper-For-Grinding-Polishing-Tools-Metalworking-Dremel-80-100-120-150/32811927490.html Bond the pieces with a PVA glue or Gorilla Glue (or you can try what you want). * Speed Controller: https://www.aliexpress.com/item/PWM-DC-6V-12V-24V-28V-3A-Motor-Speed-Control-New-Switch-Controller/32831579722.html * DC Power Socket: https://www.aliexpress.com/item/Mayitr-10Pcs-DC-Power-Jack-Socket-Female-Panel-Mount-Connector-High-Quality-Black-DC-Power-Jack/32817267539.html * 775 Motor: https://www.aliexpress.com/item/High-Power-775-DC-Electric-Spindle-Moto-Large-Torque-Motor-Ball-Bearing-Tools-12V-36V-Low/32891161654.html * 625RS X 4: https://s.click.aliexpress.com/e/bmg61iYY * Rocker Switch Mini Switch 2Pin 6A/250V ON-OFF 15*21MM: https://s.click.aliexpress.com/e/8J74wZ2 A Short Video: https://www.youtube.com/watch?v=Gt4pn9rcOsQ ** If you use the same configuration, I advise you to not to use the sander over 12V because the 775 motor can consume more current above 3A after 12V ** ** I have wrapped some bike inner tyre around the pulleys to increase the friction. I have bonded it to pulleys with epoxy glue. ** ------------------------------------------------- ** TR: ** I needed a belt sander for small hobby projects. So I made one with 2020 aluminum extrusions. Belt is 15mm wide and bought a 1 meter one and cut into 15mm wide pieces then bonded the pieces to make a suitable one for my sander. You can buy here: https://www.aliexpress.com/item/1meter-Emery-Cloth-Roll-Polishing-Sandpaper-For-Grinding-Polishing-Tools-Metalworking-Dremel-80-100-120-150/32811927490.html Bond the pieces with a PVA glue or Gorilla Glue (or you can try what you want). * Speed Controller: https://www.aliexpress.com/item/PWM-DC-6V-12V-24V-28V-3A-Motor-Speed-Control-New-Switch-Controller/32831579722.html * DC Power Socket: https://www.aliexpress.com/item/Mayitr-10Pcs-DC-Power-Jack-Socket-Female-Panel-Mount-Connector-High-Quality-Black-DC-Power-Jack/32817267539.html * 775 Motor: https://www.aliexpress.com/item/High-Power-775-DC-Electric-Spindle-Moto-Large-Torque-Motor-Ball-Bearing-Tools-12V-36V-Low/32891161654.html * 625RS X 4: https://s.click.aliexpress.com/e/bmg61iYY * Rocker Switch Mini Switch 2Pin 6A/250V ON-OFF 15*21MM: https://s.click.aliexpress.com/e/8J74wZ2 A Short Video: https://www.youtube.com/watch?v=Gt4pn9rcOsQ ** If you use the same configuration, I advise you to not to use the sander over 12V because the 775 motor can consume more current above 3A after 12V ** ** I have wrapped some bike inner tyre around the pulleys to increase the friction. I have bonded it to pulleys with epoxy glue. **