Mk2 RC tank-steering rock crawler

thingiverse

This is a more rigid and lighter version of my previous crawler with a smaller battery space suited to a 3s 2200mah lipo. I have printed it but not finished the wiring. The previous model has a better description of the parts needed (excluding the battery) but... Parts: 1x Chassis & Front Axle 1x Battery strap 1x Rear axle 4x Outer mounts 1 set of the body mount parts 1 of each of the rear M5 bolt holder parts with a m5 lock nut and bolt. Put the nut between the two parts and epoxy them together. This then gets epoxied into the tube below at the rear axle end. 1x 172mm long 14mm diameter tube. I used Carbon Fibre but you can use Aluminium. This is epoxied into the front chassis. 2x 10x5x4 bearings 4x Goodson's Hobbies 2.2 Beadlock Wheel 06 - "Super 5" (https://www.thingiverse.com/thing:3402987) - you'll need extra m3 button bolts if you use these 2x reversible brushed ESCs 1x lipo which fits 1x Transmitter and Receiver. Anything will do really. 1x RC signal mixer but only if your transmitter doesn't do channel mixing. Mine didn't so I've used a Fingertech TinyMixer. 4x 300rpm 12v 25mm gearmotors (https://www.aliexpress.com/item/32776557759.html?trace=wwwdetail2mobilesitedetail&spm=a2g0o.productlist.0.0.75b663a0I5cilv&algo_pvid=25879370-b82f-4a8a-8a9c-601c2d8e694b&algo_expid=25879370-b82f-4a8a-8a9c-601c2d8e694b-10&btsid=0ab6f82415899108943085094e6826&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_) 12x 3.5mm bullet connector pairs 1x XT60 battery connector pair I used 12v speaker wire for most wiring then some normal rc wiring for the lipo-to-ESC wiring. Heat-shrink 4x 2.2" Crawler tyres (https://www.ebay.co.uk/itm/4PCS-120MM-2-2INCH-Rubber-Rocks-Tyres-Wheel-Tires-For-1-10-RC-Rock-Crawler-Axial/392341138167?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649) 4x Pololu 12mm hex 4mm shaft adapters (https://www.pololu.com/product/2684).