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OpenBuilds V-Slot™ Corner Connectors

by OpenBuilds Jun 19, 2013
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would you mind telling me or providing me with a link of the wheels and or bearings you used to make those gantry carriages, i'm thinking of building a new printer which would utilise your system, thus i need those wheel. thanks

Currently, the longest length V-Slot we offer is 1500mm. This ensures the highest quality and tolerances.

That being said, customers have successfully joined V-Slot end-to-end for their Builds using Joining Plates and/or Double Tee Nuts.

You can find some of these Joining Plates in the examples below;




We hope this helps!

Is there anyway to take multiple short length V-slots and use these connectors to make them one long working Vslot slide. I'm thinking about making a REALLY long camera slider. I want to be able to put it together and tear it down. Essentially I want to be able to make an unlimited distance v Slot.

Anyway to do this?

It depends on how sort each of the v-slot you are planning to have. You could 3d print connectors at the right size in between each v-slot.

What screw length is best for attaching these brackets to v-slot beams? I don't want to get ones that are too long or short, since I have to order them.

Hello Matt, We use M5x8mm low profile screws from the Part Store
and tee nuts
You can also flip the tee nut over as well to gain higher threads for shorter screws.
Hope this helps, we look forward to seeing your build on http://www.openbuilds.com/

G'day OpenBuilds, just some feedback on these corner connectors if you are still following this page-
We used some aluminium cube corner connectors for a manual x/y gantry in our lab some time ago. I have linked some images below (hope you can see them). We found that when using a single cube attached to a length of v-slot with a v-wheel like one of your suggested images, there was a tendency for the cube to pivot away from the wheel's plane of rotation - making for loose/sloppy movement that got worse over time, even when using tight hex screws. We found that we needed to use 2 linked cubes or an end stop to prevent this rotation. As shown in my attached images both solutions seemed to work but was a bit of an inconvenience. We found more success with a v-slot gantry as bolted under our scissor platform. Also with the aluminium cubes, it was very difficult to fit 2 or 3 M5 button screws inside the space without some effort or grinding at least one side of the screw head.
cheers, Richard

Hello Richard, Thank you for the helpful feedback
In most instances using the plates works great but there are times where being able to use the corner connectors also has its place and keeping them from rotating using the end plate idea is a good one. Thank you for sharing!


How does the 90 degrees corner brace compare to http://www.thingiverse.com/thing:98234 (or similar design) in term of strength?

I'm currently redesigning my printer and those 90 degree brace would save a lot of print time and fasteners.

Awesomize Your New Lulzbot TAZ with steampunkish corner brackets!

Hi Andreq,
If you need them to be stronger then you can use the solid aluminum ones here: http://openbuildspartstore.com/black-angle-corner-connector/
The main difference is the on these they have the hole size of 7.2 that allow for using them with the M5 screws or the OpenBuilds eccentric cams:
This way you can add adjustable wheels to your project.

Hello bslayton,
At the moment they are for the 20x20 but making them for 15 should not be too difficult to do.

These look like they are for 20/20 extrusions. Do you plan on making any for 15/15?

Nice! Can't wait to see it gopedunderground. Thank you for your support! Have fun with your build.

Stoked! Placed my order the other day for some V-slot Extrusion, delrin V wheels and some t-nuts. I shall be designing and building a large envelope 3d printer (12 cu. in.) or bigger. Thanks for the awesome product! Open source is the way to go.

Thank you TheKretchfoop! We have the prototype in house and we love them. Manufacturing is underway! We can't wait.
Thank you,
Mark and Trish

Sweet. I love modular designs, and 3D printers... WIN!

Thanks GarethK. We're excited about them too! Can't wait to see all of the machines that come from this system. It's super fun and easy to work with.