“Mostly Printed Tube Bender” — VIDEO (not mine): Budget Way to Build a Tube Bending Die (offers plans for making tube bender too)
HINT: It makes serious use of printed PETG in the die, however, I’m probably exaggerating with the word “mostly”:
And here is the link to the plans he offers for sale ($20):
Well, looks like I will finally get a tubing bender for my shop lol
Looks like this long jack, from Vevor brand, is compatible with the design (seems identical to the one used) and it is back in stock as of today, and is the best price I have found on one like this. I just ordered one. Also, because I use the “Honey” add-on browser extension, it ran 10 coupons on the shopping cart, and one of the coupons got my price down from $98.99 to $92.06. Shipping is free.
The first link is a referral link which gets you a VEVOR new user gift package. The second link is to the jack.