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Self-locking broom handle support

3D model description

This self-locking support is suitable for handles from 20 to nearly 30 mm in diameter (3/4'' to 1''1/8).

You can use it to easily store your brooms, shovels, rakes...

2 CHC M8 screws length 40 and 2 M8 nuts (or 2 UNC 5/16 screws 1''1/2 long) will be useful for the assembly. I recommend the use of threadlockers to hold the screws without tightening them too much.

One tooth of each sprocket has been deliberately shortened to allow assembly: insert the right-hand sprocket first, raise it to the upper position and then insert the left-hand sprocket by pivoting it towards its axis.

Caps are not essential (I prefer the robot look with the hollow hex head screws).

The bracket is attached to the wall with 3.5 mm diameter screws.

To improve the adhesion between the lock gears and the broomstick, use sandpaper and create a rougher contact surface by running it perpendicular to the axis of the broomstick.

The holder works perfectly with plastic coated broomsticks. I had to lightly sand a varnished wooden broomstick for the support to work because the varnish made it too slippery to tighten.

The "19-25mm" sprocket models can be used for better clamping of broom handles with a diameter of about 20mm.

Version 4 :

  • New reinforced body definition

  • Increase in functional play

  • New definition of the shortened teeth allowing the assembly so that they remain in mesh once the screws are mounted.

Version 5 :

  • Alternative version of locking pinions for handles with a diameter of approx. 20 mm (less than 1 inch).

3D printing settings

Printing in PLA

0.15 mm layer thickness

Wall thickness of 1.75 mm

With support for body and plugs

  • 3D model format: STL

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4 comments

I actually tried sandpaper but did not help. Found that “macgyver” tape or duct tape acctualy worked great. Now it sticks to everything.

To improve the proper functioning of the self locking broomstick device, the surface of the sprockets in contact with the broomstick must have a good grip. To improve the adherence, you can use coarse grit sandpaper to create a rougher surface to hold the broomstick.

I printed this and tbh I tried it on 6 different brooms and non works. Just a waste of my time, money and filament.


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