Holding a circuit board steady while keeping two wires lined up is one of those small annoyances every soldering session brings. This build answers it with a desk vise that grips boards and wires for soldering or assembly, and what makes it notable is that the whole thing prints with no supports and no hardware at all.
The construction is clean and readable. A light gray rectangular base frame forms the body. An orange threaded lead screw with an adjustment knob drives the clamp, and an orange sliding jaw bar travels along the frame. Two separate gray clamp blocks sit behind orange zigzag compliant springs, and each spring-loaded jaw carries transverse alignment grooves for wires. The zigzag springs are the detail I keep coming back to. Printing compliance directly into the jaws seems a smart call, since it removes the need for any bought spring.
In use, a board goes between the sliding bar and the compliant jaws, and turning the knob drives the screw until the board is held securely. For wire work, two cut red insulated wires are laid into the grooves on each jaw, the springs compress, and the stripped tips end up meeting in alignment for splicing or soldering. That last trick, aligning two tips hands-free, looks genuinely useful.
There are honest limits. The maker has occasionally caught the vise with an iron tip and treats the marks as acceptable as long as the tool keeps working, which sounds like a fair attitude for a printable tool. Two questions also hang open: whether Kapton tape between vises would limit heat damage, and whether an ASA print would survive hot air work, given its glass transition of 100 Celsius. My own worry is that these filaments are not ESD safe, so static buildup could arc and damage parts. Downloadable files are on two model-sharing platforms.