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C-Beam Sphinx

by Kyo Aug 29, 2016
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I like this build. I think its one of the best documented builds on openbuilds.com.
Sadly i dont have a lot of money to spend right now, but luckily i have some v slot beams from a producer named Item.
Will try to edit this build for the Item beams.

It's this cnc accurate enough or powerful enough to anything besides a wooden sign that says hello?

I don't see a lot of practical videos on YouTube regarding this cnc's use

It is a very accurate machine. Easily able to hold tolerances. I designed and built the original Sphinx for aluminum work. It is up to the end user/builder on "how" accurate they wish to make their build. A rushed or sloppy build we be reflected in the final machine. Each build is unique. We have Sphinx builds doing delicate pcb work. Others like myself strictly aluminum.

I just starting putting this together. I'm wondering if you have a wiring diagram for the phoenix board to the motor drivers.

Can I make a 1500mm x 1500mm spinx cnc?

Are the 8mm lead screws too weak to make it large?

Does anyone know where i can find any files of the 2" taller plates ,by the way Kyo you have done a great job on complying all the files and making a nice machine .

Thanks, The Sphinx was a very fun machine to design and build.. The Taller plates are a community addition by Chris. I do recommend the standard height plate set for maximum rigidity. However I have drawn up a set of 50mm taller y-axis side plates for those who wish to go higher. I have added the file to this Thing.. You can also find a complete taller plate set from Chris here. http://amzn.to/2gOT5vC

Thank you so much.

I have been looking over your video to the build for a couple weeks and have decided to take the Sphinx plunge.
Earlier tonight I have requested the BOM at openbuilds to order the parts, as well as purchased the flanged bearings (from China)
I will also purchase the plates from Chrisclub this week. I realized however that the 20 tooth, 40 tooth GT3 pulleys and the required belt are not currently available from Openbuilds. Do you have a current supplier that you could offer as I believe these are the only missing items.
Thank you for an awesome product. Looking forward to playing with it.

Could anyone cut the 6 side plates for me to convert my cbeam?

Hello Vincent,
Please find the plate set available here. http://amzn.to/2wgqDq6 Looking forward to seeing your build !

Looks pretty darn good. Is it rigid enough for Aluminium cutting? Are wheels good enough?

Thanks, Yeah with the proper feeds/speeds you should be able to cut Aluminium on it no problem.. I have been using wheels on a few of my builds and enjoy working with them, They have been holding up very well..

Hey man love the build great job! However im looking through the files and cant seem to find all the build plates for the z-axis. Did you order these parts or make it? I use solidworks and can not export parts or i would just grab it from the model and export it out.

The four Z-axis plates are off the shelf items.
(x2) "C-beam End Mount" http://openbuildspartstore.com/c-beam-end-mount/
(x1) "Double Wide Gantry Plate" http://openbuildspartstore.com/c-beam-gantry-plate-double-wide/
(x1) "Nema23 Belt Reduction Mount" http://openbuildspartstore.com/nema-23-reduction-stand-off-plate/

Hope this helps..

Thank you for such great Big job, what is the cutting envelop with provided BOM?

No problem, Happy to share my builds. Following the b.o.m as built with a dewalt 611 I am getting 330mm(x) x 340mm(y) And the Z-axis has over 80mm of z-axis travel. Max material thickness / clearance can be adjusted with changes in the spoiler board sizes. I am currently running a base of 1/2" mic-6 tooling plate 1" mdf replaceable spoiler board and I mounted my z-axis lower then I had to by a 1/2". Leaving me with roughly 1.250" of material clearance. Raising the Z axis and going with thinner spoiler boards can get me a lot more if needed.

Nice! I've been following your build on youtube for the pas couple months :D

Thank you :) I should have more sphinx content soon.

Thank you very much for the time and effort you put into compiling this. This has to be among the most extensive uploads on thingiverse. I have recently learned about the C-beam and believe sphinx is an excellent way for makers to get their hands on a very capable cnc.

Thank you so much, I am happy to give back to the community. The C-beam extrusion has been a great building block in my projects. I look forward to following all the builds to come..