Do3D.com on Instagram: "😮 TPU Winter Soldier Arm Progress Part 2 by @slades_armory is here!!! He is currently testing different TPU materials using @do3d_com STL files to find what works best for a fully flexible arm. Fewer layer lines, cleaner finish, easier post processing, and no paint cracking 👀 TPU used for this test is from @sunlu_official Part 3 coming soon. Don’t miss it 🔥 #3dprinting #cosplay #wintersoldier #tpu #thunderbolts #buckybarnes #bucky"