Minty Tank

thingiverse

Small remote control FPV tank built in out of an Altoids tin. These prints worked for me, but may require some filing/trimming to get to work. The insert piece prints as one piece but I then cut it roughly in half to separate the front and back halves. The hole spacing fixture can be used to help mark and drill the motor and idler axel holes in the tin. The holes in the tin insert for attaching the motor holder lid as well as the cross holes in the drive wheels are oversize to allow using M3 metal thread inserts. I use my soldering iron to insert them. For the electronic I used an ESP32-Cam module, a wemos D1 mini motor shield, and a 5V BEC. I use a slightly modified version of the Scout32 software from that project. The modifications we mostly to allow me to use the I2C motor shield with the N20 motors. https://www.thingiverse.com/thing:3987784 BOM: Front idler wheel axels - 2x 37mm standoffs https://www.aliexpress.com/item/32964326790.html?spm=a2g0o.productlist.0.0.4b976c7e7TTrt9&algo_pvid=3cd68c94-6130-4591-b209-7fb4f264f12e&algo_exp_id=3cd68c94-6130-4591-b209-7fb4f264f12e-8&pdp_ext_f=%7B%22sku_id%22%3A%2266486587590%22%7D Motors - 2x N20 500rpm, 6V https://www.aliexpress.com/item/33022320164.html?spm=a2g0s.9042311.0.0.6bbb4c4d5OIaN4 Processor - 1x Esp32-Cam module. I got the one with the USB to serial on board. https://www.aliexpress.com/item/1005001722303127.html?spm=a2g0s.9042311.0.0.27424c4dPcuvbw Motor Controller - 1x Wemos D1 Motor Shield https://www.aliexpress.com/item/1005003145630080.html?spm=a2g0o.productlist.0.0.5059786cqc4REC&algo_pvid=43baef34-e91b-4ef1-aebe-fdf479252414&algo_exp_id=43baef34-e91b-4ef1-aebe-fdf479252414-28&pdp_ext_f=%7B%22sku_id%22%3A%2212000024342537758%22%7D Battery - 1x 2-cell 500mAH (This is the one I used, but that is because I had it already) https://hobbyking.com/en_us/turnigy-bolt-500mah-2s-7-6v-65-130c-high-voltage-lipoly-pack-lihv.html?queryID=cdc97e475674f7d18d235f695427b133&objectID=47540&indexName=hbk_live_products_analytics BEC - 5V, 2A. I don't remember where I got this one. something like this should work https://www.aliexpress.com/item/4001297540131.html?spm=a2g0o.productlist.0.0.f34c249cGjG2oJ&algo_pvid=beab45fc-9567-484a-81b8-24f2484361aa&algo_exp_id=beab45fc-9567-484a-81b8-24f2484361aa-2&pdp_ext_f=%7B%22sku_id%22%3A%2212000015518757272%22%7D Camera - 1x 75mm long, 160deg FOV https://www.aliexpress.com/item/1005002260523682.html?spm=a2g0s.9042311.0.0.27424c4dE1JFYQ Threaded inserts - M3 threaded inserts https://www.aliexpress.com/item/1005002181788783.html?spm=a2g0o.productlist.0.0.47635ad5DgXQEx&algo_pvid=2cf5ff65-0e79-4664-964b-5213f5f8c06e&algo_exp_id=2cf5ff65-0e79-4664-964b-5213f5f8c06e-8&pdp_ext_f=%7B%22sku_id%22%3A%2212000018969492962%22%7D Misc connectors, wires, M3 screws, M3 set screws, etc