Tarantula X Train with chain mount, BlTouch and Bel tensioner

thingiverse

This Is a design I made for my tarantula 3d printer, I wanted one part that can do all. This train comes with a BLTouch mount behind the hot end, this make it easy to do the settings. it as separate spacers to print for the bltough, this makes the train more easy to print, and the spacer are easy to adjust if needed. then it can mount a wire chain. and it as a very good and strong belt tensioner build on the train. I have a chain support bridge for the left side of the printer, I will work without this, but it will prevent your chain hitting the nuts on the aluminium profile. A mount for the other side of the X chain, and you can mount a Z Chain as well with a ground mount for it, this ground mount will keep your chain nice straight up. Print everything 1 time except the spacers, you'll need 2 of them. then it important to print the spacers and train with ABS. PLA is not strong enough because it's too close to the hot end. I printed the ABS parts just on my tarantula on glass with blue tape hot end at 235C. and heat bed 110C. use 20 lines of brim and 90% infill Train needs support rest not the chains and tensioners can be connected with m4 bolts and nuts. the nut of the tensioner must be 7mm, and the nut will be very tight, you won't be able to add the nut by hand, use the bolt and turn it very tight so that the bolt get squeezed in. I'll and some pics later Tip: when adding the train wheels, use m4 rings and on the big holes 1st m5 with m4 on top. this will keep your wheels straight New Update: I designed Z extensions. so you won't lose max print height when installing the chain. https://www.thingiverse.com/thing:2556393