Wow, itâ€™s been a long time! But in an ongoing effort to avoid studying and homework, I'm mucking about with the Ichibot and associated pages.
Even though I haven't gotten very far with Ichibot, Iâ€™ve decided to build a new, better mechanical platform for it. Iâ€™ve designed the chassis, and am currently looking for way to get it machined. Iâ€™ve also purchased the necessary hardware, pictured below (click the images for a larger version, or the links for a huge version).
|Full-sized image of separate parts||Full-sized image of partially assembled parts|
Full-sized image of separate parts Full-sized image of partially assembled parts
The new Pittman motors (part GM8724S021-R1) are much better than the old JameCo motors. They are 12 VDC motors with 60.5 : 1 reduction gearheads and 500 CPR encoders. They were $195 each, and Iâ€™m a little concerned that I ordered too much gear reduction. Some people on the robotics lists have all suggested Iâ€™ll be happy to have the torque, and that the output shaft speed is sufficient. Weâ€™ll see.
The new chassis will look something like this. I need to redo the CAD. Iâ€™ll post complete drawings and make the files available.