Solder Helping Hands

Solder helping hands are an awesome aid in the workshop.

Helping hand arms need to be flexible and precise so you can easily position objects.

These 3D printed helping hands are easily configurable to have more arms or be longer, with the round base focusing all the arms on the central work area. Six different attachment points give more options for more positions or arms.

• 3D printed parts, the STLs are on Printables at https://www.printables.com/model/344516-solder-helping-hands
• Crocodile clips - buy these at electronics stores or Aliexpress
• Epoxy glue
• Tooth pick

Instructions for printing are on Printables (https://www.printables.com/model/344516-solder-helping-hands).

Print the following parts:

 - 1 Base

 - 5 or 6 Joints for each arm

 - 1 Connector for each arm. Measure the diameter of your crocodile clip connection point to decide whether to use the 4.5mm or 5.5mm Connector. 

I used Epoxy glue. Use a toothpick to fill the connector with some glue, then slide in the crocodile clip.

For smaller crocodile clips, don't slide the clip in too far, make sure when you squeeze the clip and the Connector part doesn't get in the way. 

Let the glue dry before assembling the arms.

Clip the joints and connectors together.

When doing this, keep fingers away from the joints so they can flex as they clip together.

Clip the arms onto the base.

The base has a 'cross' of plastic in the middle so you can either put a weight on it or tape down the base to keep it all steady.