Folger Tech Kossel 2020 T-nut support to make Assembly of Frame easier

After struggling to put the horizontal aluminum extrusions in without the tnuts rotating, I thought there should be a better way to do this. Since I have a 3d printer already, I started looking at an easier way to do this with an additional plastic part. I did have to run several test prints to get this tnut support to a nice fit. The little raised metal between the t-nuts holds this in place & the plastic part keeps the t-nuts in the correct orientation while assembling. It was quite easy t