Bracket Generator by Koolm

What is Bracket Generator by Koolm?

Bracket Generator by Koolm is a free MakerWorld customizer that puts a form on top of an OpenSCAD script, so you can make a mounting bracket to exact measurements without drawing anything. Koolm also made the gear, screw and spring generators on MakerWorld.

First pick a type. Angle brackets put two arms in different planes and can get built-in reinforcing webs. Flat brackets keep both arms in one plane, T-brackets join three arms and spread into a Y shape as you raise the angle, and the straight type makes a single perforated strip or plate. Then set thickness, width, length, edge rounding and joint fillets, and lay out a hole grid for ISO or UTS screws with countersinks, counterbores or modeled threads. An FDM switch turns angle brackets into a print-friendly position and gives sideways holes a teardrop shape, and a mirror switch makes left and right pairs.

It is free with a MakerWorld account, has been customized about 16,000 times and was last updated in July 2026. A two-page FAQ explains which settings apply to which type. Printed brackets carry no load rating, so test one under the real load before you rely on it.

What you can make

• Angle brackets with reinforcing webs
• Flat L-plates
• T- and Y-brackets
• Perforated straight strips and plates
• Mirrored left and right pairs

How to use Bracket Generator by Koolm

1. Open the model page and click Customize
2. Pick a bracket type: angle, flat, T or straight
3. Set thickness, width, length, angle, rounding and fillets
4. Lay out the hole grid, screw size and head type
5. Generate, download and check the orientation in your slicer