Homemade Table Tennis Robot - remix

thingiverse

February 16, 2019 I added the project to GitHub. You can find the code I used there: https://github.com/bbogdanmircea/Ping-Pong-Robot-BOB Hello, Unfortunately, due to job-related problems, I had to give away my table and pack the robot. I'm afraid no progress will be made in the next few months. I'd be happy to support with any information if someone is working on the same robot. As soon as my situation improves, I'll get back to it. August 17, 2018 I added videos with Banebot wheels and improved stepper support: https://youtu.be/ayka_9WWK08 https://youtu.be/4J9OeD_G4EI https://youtu.be/0Lg4ioItwHg March 10, 2018 First garage tests: https://youtu.be/bwohv99UVjI https://youtu.be/Mkyyd9nZV4M https://youtu.be/ovS_viEor4w https://photos.app.goo.gl/MD8N9wMlSnhrU9b23 This is a remix of the Table Tennis Robot from Instructables: https://www.instructables.com/id/Homemade-table-tennis-robot/ The original printed parts can be found here. Many of them are used, but I made some changes: * The feeder no longer uses a piston and servo; instead, it uses a disc designed by Informer from RHCForum.ro, which is rotated by a stepper controlled by Arduino via an stick driver. * The motors were changed from the original BLDCs to Mabuchi RS-540 motors from HobbyKing. I also used 20A brushed ESCs from HobbyKing. * The wheels are aluminum hub rubber wheels normally used for landing gear on jets. A 4mm shaft and bearing are needed, as well as an axle adapter from 3.17mm to 4mm. * The rotation mechanism for the head was changed based on Alvinchua's design from Instructables. It uses a gear-based rotation system without a belt. * I modified the original software to control the stepper and new ESCs. A BT module was also added, along with an application for Android to control the robot. Here are links to alternative parts used: * HobbyKing Turnigy 20A Brushed ESC: https://hobbyking.com/en_us/turnigy-20a-brushed-esc.html * HobbyKing Mabuchi RS-540SH 6527 Brushed Motor 90W: https://hobbyking.com/en_us/mabuchi-rs-540sh-6527-brushed-motor-90w.html * HobbyKing Turnigy Scale Jet Alloy Wheel 54mm w/Rubber Tire: https://hobbyking.com/en_us/turnigy-scale-jet-alloy-wheel-54mm-w-rubber-tire.html * HobbyKing Ball Bearing 4x7x2.5 BSR Racing BZ 444 or 444 Pro 1/10 4wd Racing Buggy 6pcs: https://hobbyking.com/en_us/ball-bearing-4x7x2-5-bsr-racing-bz-444-or-444-pro-1-10-4wd-racing-buggy-6pcs.html * HobbyKing NTM Prop Drive 3530 Series Replacement Shaft: https://hobbyking.com/en_us/ntm-prop-drive-3530-series-replacement-shaft.html * HobbyKing Brass Motor Transmission Connector 4mm 3.17mm x D9 x H20mm 5pcs: https://hobbyking.com/en_us/brass-motor-transmission-connector-4mm-3-17mmxd9xh20mm-5pcs.html