X & Y Axis Assembly - E003
ฝัง
- เผยแพร่เมื่อ 8 ต.ค. 2024
- In this video, I show the assembled X & Y axis of the super-precision 5-axis CNC milling machine. I also answer some common questions about the project.
Here is my Instagram page: / kasra.mehraky
#KM5Axis #CNC #UKMFG #Precision #5Axis
Exciting project. I'm building an extremely large 5-axis granite mill (what accuracy I can get overall I'm not sure yet due as there's lots of things to compound the error). Spending probably a similar amount of money to you. Will hopefully start posting videos soon. Look forward to watching more of your videos. Control wise, I'd bought a masso G3 as I use on other machines but I don't know if I'll get the most out of it with that. The servo drives obviously do their calibrations but I don't think that's necessarily the same as having an S-curve in the controller.
A question for you, what resolution glass scales did you go for? I still haven't pulled the trigger yet on scales as I haven't calculated max feedrate based on max pulse frequency input to my dual-loop servo drives and as they're expensive at the sizes I need.
I was hoping for some detailed build videos. Live streaming and explanation videos don't cut it.
Damn, its one thing to draw up a project like this and another one to actually make it. Great job and thanks for the explanation!
You mentioned counterweight, I was meaning the Z axis (for some reason it looked like you had some kind of counterweight there in that wheel on the back). Also the budget is also very realistic considering on what a big project this is.
Btw I have not yet checked on instagram, but what control you plan to use on this machine? I feel that anything without proper volumetric calibration and jerk control is not going to work great, so most of the diy friendly controls fall short there (linux you could do full calibration, but S-curve jerk control is not there).
O also if you need some cheap new zero points tell me, got some Schunk Vero-S mini on a shelf. Not as precise as the Erowa/3r ofc (salvage some from a old EDM sinker machine if you are ok with used).
Hi again!
Good comments, that wheel is a mechanism for the Y and Z axis cover which houses a clockspring. It's a bit hard to explain, so I'm afraid you have to keep watching the new videos until I get to assemble that one! 😁
The control is Beckhoff CNC. I needed something that was quite powerful, allowing me to have various types of software compensation and full 5 axis control. Beckhoff TwinCAT CNC allows me to have volumetric compensation, thermal compensation, ball screw pitch error compensation (screw mapping), and full closed-loop control. It also has a library of different kinematics for various 5 axis set-ups which has RTCP functionality too. It has also G-Code and M-Code libraries for a turn/mill machine which is what I am making, so overall I hope it is a good choice.
Finally, thanks for the offer. I have already designed and machined everything according to System 3R, so I can't go for anything else.
Always a pleasure to see this project continue to progress. Is there a possibility you can share the cad even a simplified version to play with ?
Thank you for sharing, I have learned a lot viewing your videos
Thanks for your comment. I probably will share the CAD file at some point, but since it still is a work in progress (even though I am half way through the build 😁), it will be in the future...
How are the small mounting holes/features put into the granite parts?
Thanks for your question. They were machined on a CNC milling machine using special tools for machining granite. They are called vacuum brazed diamond milling tools. And of course lots and lots of water for cooling the tool.