KBK ROBOT ARM

thingiverse

We've made a crucial modification to the moveo robot arm, swapping out stepper motors with DC motors (25 Kg/cm & 12 Kg/cm) and adding a potentiometer to function as an encoder. This change has forced us to make some adjustments to the original project: * We added a Raspberry Pi to handle movement interpolation and control of the arm. * The A axis motor support was attached to the arm base. * Arduino and raspberry cases were mounted on the arm base. * We downsized the bearings to use cheaper 608z models, except for the tensor bearings which remain at 624z size. * The C axis motor was replaced with a more powerful one, similar to the B axis motor. * A custom H-bridge board was designed to control the axes using our in-house firmware (still under development). * Internal fans were installed to cool down the H-bridge board. * Minor frame modifications were made for improved assembly. MOTORS 25 KG CM: http://rs-online.com/web/p/motores-dc-con-caja-reductora/8347650/ 12 KG CM: http://rs-online.com/web/p/motores-dc-con-caja-reductora/8347616/ This work is ongoing until the factory ships us the remaining motors. We'll update this project with all the information, videos, and finished firmware once we receive them. Print Settings Printer: Homade Rafts: Doesn't Matter Supports: Yes Resolution: 0.2 Infill: 15% Notes: 2 kg of blue PLA (approx.) 1 kg of orange PLA (approx.) Custom Section 1 & 2: Arduino UNO and protoboard for testing H-bridges. 3: Raspberry Pi. 4: H-bridge board. 5: Arduino MEGA.