X-Carriage quick tool change for 4020 extrusion(TARANTULA)

thingiverse

I designed a custom carriage for rapid tool changes, integrating it with the 4020 carriage (Tarantula). The design also accommodates quick tool changes for the e3Dv6 hot end. To minimize waste, I reused three M5 bolts and white spacers from the original carriage. To see the assembly process in action, check out this video: https://youtu.be/3ejOMi86vow For precise bed leveling, I utilize my DIY touch-mi sensor. You can find more information on it here: https://www.thingiverse.com/thing:3659699 If you're interested in seeing the entire setup, take a look at this video: https://youtu.be/Q00tXaCDhsk To assemble the carriage, I used six M3 threaded inserts - four for the back plate and two for the e3Dv6 mount. The top features two fixed wheels and one adjustable wheel with an eccentric spacer at the bottom. For optimal alignment, I employed metal washers on the two wheels to adjust the height, ensuring they align with the third wheel to compensate for any discrepancies. On the opposite side of the back plate, I utilized white plastic spacers from previous projects. The assembly requires M4 x 10mm bolts (round head and buried head) for attaching the belt carriage to the base plate. Four M3x10mm bolts are used for the quick tool change plate, while two M3x12mm bolts secure the e3Dv6 mount.