stage platform clamp-connector

On my local church we have some different stage platforms (i.e. Stageworx UniStage) that we want to securely connect. The stage platforms provide for a fastening system (by inserting plastic elements between the profile), but in this case we needed fastening on the underside.

I constructed a 3D-printed clamp that uses a M10 screw for applying the forces. The different stage platforms have different profiles. So the left and right side had to match the specific platform-profile. I added a blender-file where you can adjust the platform-profile to your own needs.

From you local hardware store you will need:

• 1x M10 screw (10x140 mm)
• 1x M10 hexagon nut
• 2x M10 ring washer (max. 30mm outer diameter)

Details about the construction:

• The screw will take the force in tensile direction. The ring washer increases the force distribution to the 3D-printed part.
• I added a couple of internal shafts to increase the contact surface in the direction of pressure.

Security/legal note
This is a homemade system - use at your own risk. Try and test before use in production.

Print instructions

Attention: make sure to print the piece laying on the side. The tip of the tear-drop-shape in the screw hole should point to the top. In this direction ...

• ... the print layers will take the maximum forces of the stage platform
• ... you need no support

Print settings
I printed mine with 0.6mm nozzle and 0,35 mm layer height - other nozzle sizes and layer heights should be fine to.

• No support needed (see notes above).
• 25% infill
• PETG is recommended

After printing

• add one of the ring-washers inside the slot
• use a hair dryer to heat the 3D-print and the nuts and press them into the hexagonal holes of the print with sufficient force. (otherwise the nuts will not fit inside the holes!)