I somewhere stumbled over a thread/request for a DIY for FTC game pieces as some are calling buying them a “budget buster” and bemoaned the lack of a DIY option this year. As I am also involved with a “low budget” team I went to lowes today and bought a couple of length of PVC tubing and for a start redesigned the top piece (the rest will follow over the next few days. It will fit diagonally on an Ender 3 build plate even though this piece was printed on a predator.
Wall thickness increased to 5mm from 1/8 in as I know this will hold well and the holders included. Will fit what sells for 3/4 " ID (26.8mm OD) pvc pipe. And 3mm holes added as pilot for 1/8 in (+) in case you want to use 6 or 8 wood screws or something bigger to hold it together.
It will also take 1 in square wood dowels if someone takes exception to using round pvc where the official uses square on the uprights the cross pieces are 1 in HIPS bars originally so the PVC should be a good stand in. Anyway that and a 4x2 sheet of luan and some filament should enable you to make 1/2 training field at between $50-$70 depending on your filament cost.
Now I will put all the files up somewhere - probably grabcad and would appreciate if someone could point me where FTC ppl hang nowadays so I can post that in the “proper” place