Based off Spidercarts Tarantula plans. Redesigned a bunch of it, but it all looks similar. Engine model came from Grabcad (not sure of the poster's name, sorry, can't give appropriate credit...), all other parts were modeled by lil ol me.
Very much “built not bought”. With very few exceptions, all the metallic parts (frame, pedals, brackets, etc) were made with a plasma cutter, box/pan break, band saw, welder, and copious amounts of hammers.
I’m no welder, but I have beat on the finished kart as hard as I can, the only part that’s ever failed is a small 3D printed throttle mount, because “hollow” is not as strong as “solid”. Reprinted it and back to rippin around. Zero to 40mph…in about 7sec…won’t exactly snap your head back, but it’s fun!