Drafting Arm

I had wanted to get into hand drafting mechanical part for a long while now but didn't want to spend a lot of money on a drafting arm so instead i spent a lot of time on this lol, I have printed the parts and will upload the photos in the future along with instructions on how to assemble it. Below are the amazon links for the parts i used and I'll update this for further clarification on what hardware I used.

Filament: https://www.amazon.com/dp/B07XG3RM58?ref=ppx_yo2ov_dt_b_fed_asin_title
Bearings: https://www.amazon.com/dp/B09PKD8QZZ?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
Hex head socket screws: https://www.amazon.com/dp/B083SGJ7BD?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

Springs: https://www.amazon.com/dp/B0F47T44GH?ref=ppx_yo2ov_dt_b_fed_asin_title

Brass heat inserts: https://www.amazon.com/dp/B08BCRZZS3?ref=ppx_yo2ov_dt_b_fed_asin_title

In total it costs about $60-$70 including filament, but the total filament used is about 300 grams.