Endstop brackets?


(Mark Jurisch) #1

I’m a lucky owner of one of the early machines that didn’t come with end stops, which will soon be mandatory for the new firmware. I’m trying to find the documentation for the end stop brackets. I haven’t had any luck searching through the documents on Carbide3D’s site, or the wiki. I’ve noticed finding the open source documentation for this machine is much harder than it should be.

Anyone know where I can find the info for the end stop brackets?

I’m trying to decide if I should buy them, make them, or 3D print some of the other versions that are out there.


(William Adams) #2

There have been a couple of homing / limit switch kits done — Tim Foreman has a kit which is limit (not just homing) for a Shapeoko 3: https://www.etsy.com/listing/249684351/shapeoko-3-limit-switch-kit-v20?ref=shop_home_active_1

(Listed on the wiki at: https://www.shapeoko.com/wiki/index.php/Shapeoko_3#Planned_Upgrades )

I’m pretty sure there was at least one more in addition to that. None of them were/are available under opensource licenses.

That said, what we have on the wiki is at: https://www.shapeoko.com/wiki/index.php/Home/Limit_Switches — and it should be simple enough to work out a design. I doubt you could do it for less than the C3D kit, but you might manage something which would better suit your needs (and which might have hardwired limits if you want them). It would be nice to have a homing/limit switch upgrade kit under an opensource license. Features I’d like to see:

  • limit switches (including the Z-axis)
  • plastic hardware which will break away rather than damage a switch
  • adjustable touch positions — Tim’s kit has that

(Dustin S Tilton) #3

I have this kit from Additive Aerospace. They only build this for the Shapeoko 3, there is no kit wired for XL or XXL. I just extended the wiring to make it work when I upgraded to XXL. I like the probe ports built in.


(Mark Jurisch) #4

Thanks for pointing out those other kits. I have found several parts on thingiverse that people have created to add switches as well.

The Shapeoko 3 itself is opensource under creative commons, and it has a stock end stop switch kit which I presume is open source as it’s being sold with the machine by Carbide3D. So the files for those plates is what I am after, but I cannot find them.

From the Wiki: (https://www.shapeoko.com/wiki/index.php/About)

Goal: ShapeOko’s goal is to design and build a fully open source (open hardware) 3 axis CNC machine that anyone can build for the lowest possible initial cost.

That would indicate that the standard end stop kit should be open source, but I cannot find anything about the brackets. The section about adding the limit switches (which will soon be required) just points to the installation manual/documents, but no part files.


(William Adams) #5

Yes, and that’s been done:

Existing in parallel w/ “Shapeoko the project” we have “Shapeoko the product”, which is currently available from Carbide 3D — while the Shapeoko 3 was made available under a “No Commercial” derivatives opensource license, none of the developments since then have been, and Sparkfun’s Stepoko is only an SO3, pre Summer 2016.

Interestingly their page: https://www.sparkfun.com/stepoko has a listing for Limit switches which just links to their listings for micro-switches and associated components.

All of the above represents my understanding of the situation and legalities, it is not legal advice, nor is it an actual official statement by the company — all I can do to speak for the company is do tech support via support@carbide3d.com and author some docs.carbide3d.com articles — for any further details on this, please contact @edwardrford or someone at Carbide 3D who has the authority to make such pronouncements.

That said, if someone has worked up opensource files which are compatible w/ the license for the wiki (CC-by-SA: http://creativecommons.org/licenses/by-sa/3.0/ ) I’d be glad of them and will help to get them placed on the wiki.