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This rather intriguing unit passes high current through staples to allow them to be melted into plastic to repair cracked or broken sections.

Probably aimed at repairing the explode-on-impact plastic bumpers used on most modern cars.

https://youtu.be/W2XMNSov9wg

Files

Temu plastic welder with schematic

This device actually works surprisingly well. I was expecting it to be more sophisticated inside than it actually is, but it's actually refreshingly basic. The unit comes with packs of different shaped wire staples that are inserted into the end, and heat up when the trigger is pulled.

Comments

evilution

I have used one of these regularly for years and they re priceless for plastic repairs. Mine is more of a wand than a gun and mine is so abused that they transformer rattles in mine. The amount of money I have saved not buying bumpers and brackets has paid for itself hundreds of times over.. The large wave staples go along a break and the small wave staples go across a break. It also helps if you plunge the staple in to depth and then give it a little twist to lock it inside the piece. Then use the additional spade bit (or an old soldering iron) to melt the displaced plastic back into place. I also use old zip tie cut offs and melt that into and around the repair to build it up a bit at the back. A bit like TIG welding but for plastic.

mikenco

Better rotation of the staple would mean more wires will bridge the crack, make the repair a little stronger. It looks like it could be quite useful, especially if coupled with some body filler and maybe a skim of Araldite on the exposed joins.