G-Codes for CNC bench

[JFettig]

the code for running the machine, oh yeah I must have missed that part of the post, how were ya running it that fast? or was that an accident?

If you open those files in notepad, youll see what I mean

Jon

[tex707]

Originally Posted by JFettig

the code for running the machine, oh yeah I must have missed that part of the post, how were ya running it that fast? or was that an accident?

If you open those files in notepad, youll see what I mean

Jon

There is obviously a misunderstanding here...I was talking about intentional machining of copper with 160 ipm...take a look at the shape of the machined grooves...maybe we could learn something from these guys, they are probably not amateurs...

The link once more:

http://www.boeing.com/assocproducts/...dMachining.htm

[jaydee]

Originally Posted by tex707

maybe we could learn something from these guys, they are probably not amateurs...



http://www.boeing.com/assocproducts/...dMachining.htm

Probably not being we will most likely never have access to the machines they have (million $ plus mills).

[JFettig]

yes, high speed spindles, that is one key thing, I am and have been thinking about getting a 2hp router with a 30k spindle and modding my mill, there are a few problems, I would need to get some fast servos to keep up with the spindle, and I wouldnt be able to drill regular holes and do stuff like that because the minimum speed of them is like 6-8k
For 1mm end mills, 60k would be a little better

Jon

[jaydee]

Originally Posted by JFettig

yes, high speed spindles, that is one key thing, I am and have been thinking about getting a 2hp router with a 30k spindle and modding my mill, there are a few problems, I would need to get some fast servos to keep up with the spindle, and I wouldnt be able to drill regular holes and do stuff like that because the minimum speed of them is like 6-8k
For 1mm end mills, 60k would be a little better

Jon

Let's mot forget extreamly accurate high resolution controlers (lot's of $$$$). Any little miss and that endmill is toast.

[JFettig]

my controller(turbocnc=shareware) and my drives/motors have resolution to .0001" and I can set it up so it wouldnt have any problems with that. otherwize I am upgrading to mach2 cnc which is even better than that.


Jon

[jaydee]

Originally Posted by JFettig

my controller(turbocnc=shareware) and my drives/motors have resolution to .0001" and I can set it up so it wouldnt have any problems with that. otherwize I am upgrading to mach2 cnc which is even better than that.


Jon

I wouldn't take the manufactures word on that. Also that dosn't take in other more important variables such as power supply stability, length of wires, quality of wires and a million other things not directly related to the motors and controllers. Also if your controllers were truely that good people wouldn't be paying hundreds of thousands of dollars for one's that really do have that accuracy.

[JFettig]

Jaydee, do some reading, if I had preloaded screws and a little higher quality mill I could get .0005 acuracy at least and possibly better. The only problem is that I have no need for that acuracy.

About using high speeds and high speed spindles, you could set acceleration so it starts slow and gradually gets to speed(actually quite quickly)

Jon

[jaydee]

Originally Posted by JFettig

Jaydee, do some reading, if I had preloaded screws and a little higher quality mill I could get .0005 acuracy at least and possibly better. The only problem is that I have no need for that acuracy.

About using high speeds and high speed spindles, you could set acceleration so it starts slow and gradually gets to speed(actually quite quickly)

Jon

Your not understanding what I am saying. The mechanical properties can be .0000000000000001" accuracy but that means nothing if the controller and it's wiring are low budget. Pointless to get into though as it really doesn't matter with our mills being what we have is plenty good enough.