Flexible Armhalterung der Helfenden Hand

This is a universal mount for Helping Hands / third-hand soldering aid arms. There are a number of products that use this kind of flexible arm, with clamps or a magnifying glass, and an M4 or M5 thread at the base that can be screwed to this mount. I recommend using a washer with the screw.

You can choose how to attach the holder:

• Screw: Any 4 mm countersunk screw
• Multiboard or openGrid mc25: using the Multiconnect interface
• 3M Command Strip: A 20 mm wide strip cut to 48 mm will fit, with a recess that lets it sit almost flush against the wall
• Combinations with screws: Even more universal, but experimental
• Blank: Backplate without holes or cutouts

For the Multiconnect connections (with MultiBoard or openGrid spacing), I usually like using this snap or this anti-rotation snap. Note the small recess in the middle, which helps keep the holder securely in place when fully engaged.

No supports are needed for printing, and the default settings should work fine. To make it look a bit nicer, I used the "Variable Layer Height" feature in the slicer to reduce the layer height in the lower angled part (see screenshot). In general, it’s designed to be easy to print: the holes have a teardrop shape, and the upper edge of the Command Strip cutout is angled.

In addition to the standard .stl files for 3D printing, you also get .step files for easier modification.

For commercial use, please take a look at this page.