Right Angle Bracket For Enclosures and Boxes

thingiverse

Let's face it... Adhesives just can't hold up against screw fasteners. I love the idea of using adhesives like any red-blooded man does, but they just aren't enough in some situations. No one really knows when the first screw fastener was invented, but they show up in history as far back as the 1500s. I personally think that back in caveman times, some aspiring cave person looked at his newly invented wheel and sighed, "If only Naruk had screw!" Now, I know what you're thinking, but please get your mind out of the gutter. Not that kind of screw - I mean fasteners. It's a simple fact of life: nothing beats a well-mounted bolt or screw for sturdiness in most applications. I noticed this right away when after I built my Lexan enclosure for my Robo 3D R1 Plus, the box adhesive started to pull apart after only a day or two of use. This was made to join two flat planes together into a rigid structure at a right angle. It works beautifully for joining sheet plastic together and is meant for #6 machine screws. In practice, I used #6-32 1/2" screws, but found that the tips bumped on the inside of the angle, so either a shorter screw is needed or you can place the heads inside the angle with the bolts on the outside of it. Perhaps I'll modify this to work better with those 1/2" screws, but I simply cut the holes in the Lexan a bit small so that the machine bolts tapped into them and it worked out well enough. Printer Settings Printer Brand: Robo 3D Printer Model: R1 ABS + PLA Model Rafts: No Supports: Yes Resolution: Whatever Infill: 100% Notes: This needs support due to the screw holes, although some printers may be able to manage without support. I chose the on-its-side orientation to allow the layering to complement the part's strength rather than work against it. The piece should be printed in a strong enough plastic to handle whatever job you are going to put them into. If you're not working with heat, then I'm reasonably certain that any plastic will do fine, even that PLA stuff. If you're working with high stress, try nylon or PETG, and do bear in mind that these are plastic, not steel. Don't expect them to work as bookshelf or countertop supports unless you're using a lot of them and your load is low.