6" Corner Clamp, Right Angle Clamp, Positioning Square (v1.3)

This is a 6" corner brace (for clamping), aka right-angle clamp, aka positioning square.

As requested, there are now four variations: 

• A: Sharp corner — measurements on sides (inches & millimeters) right down to zero
• B: Corner nipped — for use even in presence of sawdust or glue where the boards meet
• C: Corner nipped — smooth edges without any measurement numbers. 
• D: Corner nipped — with only metric measurement numbers

Also, as requested, on all variations there is now a slight chamfer (0.5mm) to help prevent elephant's foot issues.  

These kinds of braces are great for woodworking, whenever you need to clamp two boards together at a right angle. Metal ones can be bought, although a teensy bit pricey. Plastic ones can be bought affordably, but they are only basic "L" shapes (having no diagonal strut for maintaining square). This one has the diagonal strut those plastic ones are missing. I added major ruler marks for inches and centimeters, and minor ruler marks for 1/2", 1/4" 1/8" and millimeters.

No supports are necessary, assuming your 3D printer can do even a small distance of bridging.

I don't know if modern slicers still need us to bother with positioning the STL file at 45 degrees from how you'd assume, to help with the bridging. I used to do that so the slicer would not be trying to bridge the entire 6.8" span of that diagonal strut in single bounds. By having the thing turned 45 degrees, it only needed to bridge about 0.38" at maximum. Slice it as shown and “preview” the result. If it would benefit from rotating it by 45 degrees, do that.

PS: Obviously if you scale [variations A or B] up or down, the ruler measurements will no longer be valid. If you need other sizes, consider scaling variation C. If there's a demand for other sizes I could produce those with ruler measurements still intact.

This was created from scratch by yours truly, using SketchUp Pro.

Print Settings

• Rafts:  No
• Supports: No
• Resolution:  0.24
• Infill: 100%
• Filament: 3D Solutech PLA Merlot Red

Category: Hand Tools

Change log:

• 2023-02-23 - version 1.3 - added version with only metric measurements. 
• 2023-02-23 - version 1.2 - added version without measurements, and added chamfer to all three variations. 
• 2022-07-24 - version 1.1 - added variation with nipped corner
• 2021-03-01 - uploaded original v1.0

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