@M00nAng3l

Day 8 — Robotic Arm Project

Spent: 1 hour

Today I compared the remaining servo options for the robotic arm and decided to replace the MG996R servos with DS3225MG servos. The DS3225MG provides significantly more torque (about 25 kg·cm), is waterproof, and uses metal gears, all while costing less than the MG996R. Since the body dimensions and mounting hole pattern are very similar, I won’t need to redesign any of the existing brackets. I also spent some time optimizing the CAD model by removing unnecessary material from the arm segments. The goal was to reduce filament usage while keeping strength in the areas that experience the highest loads, such as the joints and mounting points. The CAD assembly is now roughly 80% complete. Next, I’ll continue assembling the remaining components and complete the overall arm assembly before moving on to the next stage of the project.

onshape is lagging and is being quite difficult atm

Revised Design sketch after test print was completed. The things i changed were that im making the wand into keychain so it prints faster and its easier to wand out at events. I also revised the placing of the top parts shapes from the FIRST Robotics logo.

Finally figured out how to record my hardware projects! So here is me building the 2nd XRP’s Skid attachment. For it being the 2nd time building the hinge and getting it attached and working it took way longer than I thought it would. I definitely need to expand the length on the latches that attach to the XRP’s chasity.

Finished the CAD design for the wand. It’s ready to go to the printer now. I may make another version down the line but as a coming back to using CAD it was good to start with.

Design sketch finished! The wand is Ready for Prototyping in onshape!