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Wow, that sounds complicated! So thisd sounds like a math formula that needs to be in the post. I see where the post has some math for rotation speed it seems. but no idea where any syncing might...

did a search, not much to see.

Using SheetCam on a Cosmec with a 4th axis installed and working fine. This seems to be independent of the OS or POST or the CAM, similar results with different...

Cool, those were my thoughts also.
john

HYBRID NEMA 34 MOTOR AND A NON-HYBRID DRIVER?

I'm thinking in a pinch, I should be able to drive a hybrid stepper motor with a basic step and direction driver shouldn't I?

I did a quick test...

I bought an early mill when they came out. When PP came out I did just what you suggest with no issues, still works to this day, get a wifi blue tooth usb dongle also.


Computer Dell Optiplex...

that's right, videos cost yours truly way more.

jh

Been very busy designing and fabricating other components for this machine. the TTS tooling cannot use all 5hp so I have a new power drawbar with 3600lb of force and a new modified Hardinge collet, I...

yes, balance is the next issue to deal with. I'm sure it could be better now but it seems to be at a manageable level. Did you static or dynamically balance yours popspipes? I have had my own PDB...

A little teaser for everyone. Simple test, still not pushing it to the max yet.


https://www.youtube.com/watch?v=02IPvlFIZSo&feature=youtu.be

johnh

or breast implants? I don't know why I wrote that lol!

And thus illuminates the need for experience gained from others or your own to look down the path of the desired modifications ahead of time...

What I find interesting so far after the recent spindle rebuild using Kluber grease is the lack of heat build up in the spindle.

Yes, balance is important, 6400 right now is relatively very...

was 298634

is 298636

and I'll drop the ET even more when my "blower" pulleys arrive!

jh

I think you missed the bulk of the thread Steve.

Mine now has 5hp and 6400 rpm, soon close to 10k rpm, it is more than doubling what it could with the stock motor, and the cutters a re liking it...

The pull out appears to be related to how much tool flex is going on based on chip load, if I do the same cut at say 8-10k the chip load would go down, thus the flex would go down but this MMR would...

SOME NEWS,

I got up to 6400 rpm - 60ipm, .15 radial and .775 deep which equates to 6.98 cu in min! BUT, the TTS tool kept wanting to pull out :(

The motor was barely breaking a sweat, I only...

Hats off to your scratch build, that's a huge undertaking. I'll post numbers as I find them out.

Right now I use gates GT2 28 tooth flanged pulleys 1:1 ratio and a Gates GT3 belt. all of that is...

Oh, I meant 1 diameter deep, yes, 1" deep full width on a .375 cutter would be kinda of dumb move! But I do have the serious flood cooling going on!

Yes, I have the series II steppers, my thoughts...

Oh, I meant 1 diameter deep, yes, 1" deep full width on a .375 cutter would be kinda of dumb move! But I do have the serious flood cooling going on!

Yes, I have the series II steppers, my thoughts...

maybe this is why I was not getting 3 cu in min.

298446

as I said before 3750 rpm was the sweet spot, any higher is was easy to bog the motor down, a lot lower it just was slow and rough on...

Question,

what MMR rate has anyone actually achieved using a stock a PCNC 1100?

this will be my testing goal below,

298444
SGS Tool Company- A Leading Manufacturer of Round, Solid Carbide...

Yeah, maybe so, I've had nothing to compare it to, just what I was experiencing with what I have, the machine is serial #26 or near there. Maybe the newer motors are better?
Cool, now I have a Goal...

Pocketing

298336

this was using an un-coated Destiny Viper 3FL rougher, 6000 rpm, .315 deep, .15 width, 36 ipm. This equates to about .003 chip load per tooth. No steps lost.

When running...

Yes, 6061-T6

when I get some definitive tests done I'll post what I find, but I can tell you it kicks A-- compared to the stock motor. the machine base is not even noticing. But then again I never...

Well,
it's up and running! Took a while to do all the re-wiring, setup etc. I also have a PWD lock out now when the spindle is turning, nice saftey feature.

a couple of progress pic's

red...

6061-T651 yep, plenty of meat. 1:1 drive, will still have plenty of torque down low, I mainly mill aluminum.

should be capable of 7200 rpm all day long according to the motor manufacturer. (once I...

Well, went for the big gun first, making progress. Tormach's 3d model didn't represent the real mill in a critical area, had to make some adjustments.

jh

296042

296046

296044

getting closer, waiting on some data from Sumitomo, will verify install using stock PCNC motor, then the big gun will get installed. Not to tight of a fit. Had to move a couple of things up, no...

that's better than my suggestion, I'll do that!

As I learn more I'll update. right now I'd digging into the python files to eliminate the forced shutdown of the computer when choosing to hit the...

Yeah, it's been sweet. I did get the spindle upgrade when it came out, it started life as a series I. I made a stand and full enclosure back in 2006 for flood cooling, and remote mounted the manual...

Been tinkering under the hood a lot, thought I'd pass on some lessons.

It's easy to break PP real fast to the point an upgrade doesn't fix it, it will get stuck in a controller broken loop , then...