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While cleaning up the warehouse, we tripped across this cache of Openbeam aluminium 15x15mm construction extrusion, in various colors, various lengths (from 1M down to 240mm).

This is beautiful, and useful. We’ve built a few machines using it using both ABS and aluminum brackets with 3mm hardware, including the bulk wire-winder, wire cutter, robot chassis, and screw counter.

The profile is open-source, and there’s a good assortment of 3d-printer compatible fixtures you can use it with! Come on into the store and grab it while it’s still around! (Sorry, not available for shipping)

What’s to say about it? It lets you build “L” intersections with 45° & 90° angles with OpenBeam. These are made out of ABS plastic.

Sold in packs of 2.

What’s to say about it? It lets you build “T” intersections with OpenBeam! These are made out of ABS plastic.

Sold in packs of 2.

This kits comes with everything you need to start building rigid enclosures (with added acrylic/wooden walls), frames for 3D printers & other automated equipment, camera rigs, or a robot chassis. OpenBeam precut lengths make it so quick to start building mechanical structures that easily combine with electronics to make all kinds of interesting projects. Not only can these projects be built in record time but they can also be easily shared. If anyone else wants to replicate your shared project, they can pick up this precut kit and quickly create their own.

OpenBeam extrusions vary in length and are 15x15mm square.

Note: While the picture shows injection-molded T and L plates, these have been switched to laser cut ABS plates to address stock availability issues.

Kit Includes

This kits comes with everything you need to start building rigid enclosures (with added acrylic/wooden walls), frames for 3D printers & other automated equipment, camera rigs, or a robot chassis. Open beam precut lengths make it so quick to start building mechanical structures that easily combine with electronics to make all kinds of interesting projects. Not only can these projects be built in record time but they can also be easily shared. If anyone else wants to replicate your shared project, they can pick up this precut kit and quickly create their own.

You’ll notice that the cut lengths often change in increments of 30mm. This is because in a rectilinear framing structure, the 30mm difference allows a piece of OpenBeam to span across the framing structure cleanly. For example, suppose you have a framing structure made by joining 2 pieces of 300mm (length) and 2 pieces of 150mm (height) into a picture-frame shape.  A 270mm piece will perfectly span the gap between the 2 150mm uprights (given that each of the uprights are 15mm wide).  If the butt joints were mated the other way, a 120mm piece will perfectly span between the 2 x 150mm pieces.

Note: While the picture shows injection-molded T and L plates, these have been switched to laser cut ABS plates to address stock availability issues.

Kit Includes

Check out what we made with some of these precut lengths:

This kits comes with everything you need to start building rigid enclosures (with added acrylic/wooden walls), frames for 3D printers & other automated equipment, camera rigs, or a robot chassis. OpenBeam precut lengths make it so quick to start building mechanical structures that easily combine with electronics to make all kinds of interesting projects. Not only can these projects be built in record time but they can also be easily shared. If anyone else wants to replicate your shared project, they can pick up this precut kit and quickly create their own.

You’ll notice that the cut lengths often change in increments of 30mm. This is because in a rectilinear framing structure, the 30mm difference allows a piece of OpenBeam to span across the framing structure cleanly. For example, suppose you have a framing structure made by joining 2 pieces of 300mm (length) and 2 pieces of 150mm (height) into a picture-frame shape.  A 270mm piece will perfectly span the gap between the 2 150mm uprights (given that each of the uprights are 15mm wide).  If the butt joints were mated the other way, a 120mm piece will perfectly span between the 2 x 150mm pieces.

Note: While the picture shows injection-molded T and L plates, these have been switched to laser cut ABS plates to address stock availability issues.

Kit Includes

Machinist Kit Also Includes

Wow. The OpenBeam Kickstarter really pulled through, and …it’s nice stuff! We invested in the MakerBeam stuff a while back, and it’s been great for some tinkering, but this OpenBeam really pours on the utility-sauce!

Designed around metric hardware standards (yeah, seems metric is the way to go with this stuff!), the OpenBeam 1515 extrusion features 4 slots that perfectly capture a M3 hex nut or the head of a M3 hex head cap screw.

The center hole channel in the beam can also be tapped to accept an M3 screw, for nifty end-mounting applications The channels down each side of the beam are 3mm wide, handy for 3mm acrylic, 1/8″ wood. Thinner material like (interestingly enough) standard 0.062″ circuit-boards fit nicely into the single thin channel that runs down the center spine. It’s a really well thought-out profile, which is sure to see lots of applications in the DIY machine field!

OpenBeam Extrusions are 90x15x15mm (LxWxH)

Wow. The OpenBeam Kickstarter really pulled through, and …it’s nice stuff! We invested in the MakerBeam stuff a while back, and it’s been great for some tinkering, but this OpenBeam really pours on the utility-sauce!

Designed around metric hardware standards (yeah, seems metric is the way to go with this stuff!), the OpenBeam 1515 extrusion features 4 slots that perfectly capture a M3 hex nut or the head of a M3 hex head cap screw.

The center hole channel in the beam can also be tapped to accept an M3 screw, for nifty end-mounting applications The channels down each side of the beam are 3mm wide, handy for 3mm acrylic, 1/8″ wood. Thinner material like (interestingly enough) standard 0.062″ circuit-boards fit nicely into the single thin channel that runs down the center spine. It’s a really well thought-out profile, which is sure to see lots of applications in the DIY machine field!

OpenBeam Extrusions are 60x15x15mm (LxWxH)

Wow. The OpenBeam Kickstarter really pulled through, and …it’s nice stuff! We invested in the MakerBeam stuff a while back, and it’s been great for some tinkering, but this OpenBeam really pours on the utility-sauce!

Designed around metric hardware standards (yeah, seems metric is the way to go with this stuff!), the OpenBeam 1515 extrusion features 4 slots that perfectly capture a M3 hex nut or the head of a M3 hex head cap screw.

The center hole channel in the beam can also be tapped to accept an M3 screw, for nifty end-mounting applications The channels down each side of the beam are 3mm wide, handy for 3mm acrylic, 1/8″ wood. Thinner material like (interestingly enough) standard 0.062″ circuit-boards fit nicely into the single thin channel that runs down the center spine. It’s a really well thought-out profile, which is sure to see lots of applications in the DIY machine field!

OpenBeam Extrusions are 600x15x15mm (LxWxH)

Wow. The OpenBeam Kickstarter really pulled through, and …it’s nice stuff! We invested in the MakerBeam stuff a while back, and it’s been great for some tinkering, but this OpenBeam really pours on the utility-sauce!

Designed around metric hardware standards (yeah, seems metric is the way to go with this stuff!), the OpenBeam 1515 extrusion features 4 slots that perfectly capture a M3 hex nut or the head of a M3 hex head cap screw.

The center hole channel in the beam can also be tapped to accept an M3 screw, for nifty end-mounting applications The channels down each side of the beam are 3mm wide, handy for 3mm acrylic, 1/8″ wood. Thinner material like (interestingly enough) standard 0.062″ circuit-boards fit nicely into the single thin channel that runs down the center spine. It’s a really well thought-out profile, which is sure to see lots of applications in the DIY machine field!

These extrusions are precut to 45x15x15mm (LxWxH)