Soldering helping hands base
A weighted base with sockets for flexible gooseneck arms keeps small boards and wires positioned while you solder. The base is a 120 x 80 x 25 mm block with four 12.7 mm sockets that accept coolant-hose arms or alligator clip stems, a hollow underside you can fill with sand or steel shot, and 6 mm rubber foot holes so it does not skate across the bench. Print with 4 walls at 20 percent infill in PETG so a stray iron touch does not deform it.
Generating your own base means the socket diameter matches the arms you already own instead of forcing you to buy new ones. Describe the arm diameter and how many you have, ask SpeakCAD for a fume-extractor port or a sponge tray, and see the result immediately in the browser at no cost.
Design a soldering helping-hands base 120 x 80 x 25 mm with four 12.7 mm sockets 15 mm deep, a hollow ballast cavity underneath with 3 mm walls, four 6 mm rubber foot recesses, and 3 mm fillets on outer edges.