NoTanks remix with mid-engine setup

thingiverse

This is a remix of Swepet's outstanding NoTanks with several modifications: * A slightly larger chamber * Mid-Engine configuration * Printed pinion gear * Cover plates with cutouts for modules * FPV front cover module * Exhaust fan rear cover module * Track links for 1mm paperclip hinge * Rubber-band track link insert * Outer side with holes * Gear wheel base with swappable gear ring --- June 2019 update --- Added a LED light, changed to use a different camera, and reduced the size of the front module. Please check the three STL files that start with "notanks_remix_camera". I also switched to metal pinion gear - the nylon ones still wear out after a while, especially when I have your tank stuck and still push on the motor. For the shim of the metal gear, I just cut strips of soda can and wrap it around the motor shaft. The camera is this one: https://www.ebay.com/itm/263827304354 LED light: https://www.banggood.com/12V-Motorcycle-Handlebar-LED-Headlights-Running-Spotlight-BlueGreenWhite-p-1279313.html?rmmds=myorder&ID=233&cur_warehouse=CN LED light switch: https://www.banggood.com/LED-Lights-Controller-Electronic-Switch-2A-For-FPV-RC-Quadcopter-p-976106.html?rmmds=myorder&ID=516618&cur_warehouse=CN White/blue main switch: https://www.ebay.com/itm/273865690791 Metal pinion gear (mod1 12T): https://www.amazon.com/gp/product/B014U2NWHG/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 ===== Original post ======= The pinion gear comes from the OpenSCAD of https://www.thingiverse.com/thing:2764094. With these modifications, I can fit double 5000mA batteries, have a tilt FPV camera setup, and also get much better stability (very hard to flip). Still need to get some good light to make this a crawl space inspection machine :). Things to know before you print: * The inner side plate will fit into a 200x200mm bed. You need to first eliminate anything that increases dimension like skirt or brim. Position and angle it to fit in the bed, then slowly increase brim to help adhesion. Also slightly increase bed temperature to fight edge curling, as the edge of your hot bed is generally cooler than the center. This design has separated gear ring and gear wheel base so you can swap out worn gears without printing the whole wheel, also provides excellent grip on most smooth solid surface and you only need 6~8 insert to cover the whole track.