[QSPSB]

Drama~Bahama

Keep it coming hoss

You Daa Man..........

Stoney

[hi_im_sean]

i have no idea what happened, and i dont care to read, but that thread was getting so long and hard to navigate, its for the better imo!

can you recommend the largest flycutter my 0704 completely stock will run, in some tough aluminum (have no idea what alloy, japanese motorcyle engine parts)? i want to surface some dirtbike cylinder heads, unless you have an idea to chuck it up in the 0602. thanks hoss

[mwood3]

i have no idea what happened, and i dont care to read, but that thread was getting so long and hard to navigate, its for the better imo!

can you recommend the largest flycutter my 0704 completely stock will run, in some tough aluminum (have no idea what alloy, japanese motorcyle engine parts)? i want to surface some dirtbike cylinder heads, unless you have an idea to chuck it up in the 0602. thanks hoss

I use this set http://www.grizzly.com/products/Fly-...its-1-2-/H5935

they work pretty good, I like the medium sized cutter with a left hand brazed carbide lathe bit(modified relif angles and a big radius gives a good surface finish).

IMO 1.5" is the biggest i would go on stock gears and that might be pushing it.

you might be better with something like a 1.5" shell mill for facing, I have a hand me down used one and it cuts much better, Shars.com has a huge selection at a good price

[rcazwillis]

I got my Ebay HP power supply yesterday.
It came wrapped in bubble wrap only and it must have been
dropped, the end of the case where the terminals are is racked and bent.
hopefully nothing inside is broken.
no pics till i'm back on my good pc.
Hoss

That bites.

[hi_im_sean]

i have a lot of shars tools, and qctp for my lathe, im impressed with the stuff for the price,ill look into some shell mills, thanks

[photomankc]

I've been well served by the Glacern FM45 2.5" face mill. It don't break a sweat in aluminum at any sane DOC I have tried. In fact once, forgetting that I had raised the part by 1/8" I accidentally took a .135 doc chunk out. I only noticed that the spindle sped up way more than normal then saw the part-killing disaster I had made. It seemed as though it was going to damn well try to comply with my wishes on that cut. It did knock it out of tram.

If it's a 90 degree face mill I think I would also stick a bit below 2"

[hoss2006]

I've got a 3 inch facemill down on the RF45 I'll have to give a try on the 0704.
Here's the pics of the power supply.
What can you expect for $12.
Hoss

[ncdeftones]

Hey Hoss, do you care to share any info on your wiring up a C6 board to the G0704? I'm wanting to get mine setup to control the spindle speed, but I keep seeing horror story post about people burning up their electronics and/or the C6 board. So before I even think about ordering one I'd like to find out more about it. I saw a video where you tested yours and it worked, but you didn't really mention anything on the wiring.

[hoss2006]

Hey Hoss, do you care to share any info on your wiring up a C6 board to the G0704? I'm wanting to get mine setup to control the spindle speed, but I keep seeing horror story post about people burning up their electronics and/or the C6 board. So before I even think about ordering one I'd like to find out more about it. I saw a video where you tested yours and it worked, but you didn't really mention anything on the wiring.

I think I mentioned before that Cnc4pc has the wiring diagram on their site,
http://cnc4pc.com/Tech_Docs/KBIC.pdf
I wired it up the same using F- and P2 and it worked perfectly.
Remember to use a separate 12V power supply for the C6 with nothing else sharing it.
A cheap wallwart will work just fine.
The mills pot P2 wire needs disconnected from the mill board for the C6 to connect to it,
Using a 2P2T switch could let you select between the mills pot and the C6 for manual or PC control.
I have something similar on the X2.
here at the bottom of the page.
http://www.hossmachine.info/forum/ya...e-Project.aspx
Hoss

[nomedia="http://www.youtube.com/watch?v=QFzU9vtZi4U"]YouTube - G0704 Mach 3 Spindle Control[/nomedia]

[ncdeftones]

Thanks Hoss! I've got my Phase 1 setup just about 100% operational. I still need to finish wiring the limit switches, more accurately calibrating my steps per, and configure my backlash compensation. I appreciate all your info.

I would like to upgrade to ball screws eventually, but I'll probably have to wait until I get a lathe so I can turn the ends and thread them.

[hoss2006]

Thanks Hoss! I've got my Phase 1 setup just about 100% operational. I still need to finish wiring the limit switches, more accurately calibrating my steps per, and configure my backlash compensation. I appreciate all your info.

I would like to upgrade to ball screws eventually, but I'll probably have to wait until I get a lathe so I can turn the ends and thread them.

sounds great, also sounds like a good excuse to go out and buy a lathe.
Hoss

[photomankc]

Just get a decent lathe. I tried forever to find a way around it and now I can tell you that I would not want to have to try doing the workarounds I was trying to cook up every time I needed a spacer, shaft, or bore. 6 months no interest makes it fairly easy to absorb.

I'm loving my 10x22, would not want to be without it now.

Come on..... be like the other cool kids!

[ncdeftones]

sounds great, also sounds like a good excuse to go out and buy a lathe.
Hoss

Hehehe, yeah I know. I've already been eyeing the G0516 combo. I've seen where people plop the mill portion off (it's the same as the mini-mill) and mount it separately. I've got a mill/drill table that I could combine it with to make another little mill. The G0602 is pretty nice too.

Are the little 7x10 and 7x12 lathes worth buying or are they typically way undersized? I can't think of anything really large I would be using on a lathe...but you know how that goes you don't realize what you really need until you go buy one only to find it's too small.

[hoss2006]

I would consider the 8x12 the minimum to do some decent turning and to have
as a general purpose lathe, especially for turning ballscrews.
The 9x and the 10x are a step up to be able to do just about anything you'd need.
The 10X22 is as big as i'd feel comfortable CNCing, the bigger lathes come with full gear boxes
and it would seem a big waste to me to toss all those parts out since they wouldn't be needed for CNC.
That being said, ANY lathe would be a benefit for making a lot of the parts needed for a conversion and whatnot,
even a 4x5, which folks have shown CAN turn steel just not ballscrews so much.
Hoss

[photomankc]

You'll be amazed how quick you run out of room on the lathe! Tailstock Drilling especially.

[daman]

I got my power supply yesterday.

I started a new thread about it.
http://www.cnczone.com/forums/showth...613#post828613

Images and instructions:
http://picasaweb.google.com/pasi.lassila/HPPowerSupply#

[hoss2006]

I got my power supply yesterday.

I started a new thread about it.
http://www.cnczone.com/forums/showth...613#post828613

Images and instructions:
http://picasaweb.google.com/pasi.lassila/HPPowerSupply#

Excellent, I'll have to give it a whirl now.
Don't know if i'll need it actually though.
I ran all 3 axis tonight rapiding at the same time off of the 7.3 Amp power supply and they all went full bore.
The meter peaked at a little over 4 amps draw but as has been said is probably too slow to pick it up.
Think the real test will be during some heavy cutting, that'll be tomorrow.
Videos tomorrow too.
Hoss

[hoss2006]

To complete the rapiding tests, the Z axis gets 290 IPM
at 45000 Hz Mach 3 kernel speed with 1/8 microstepping.
Hoss

[nomedia="http://www.youtube.com/watch?v=Ts2V2Q7dqRo"]YouTube - G0704 Z Rapid 290 IPM[/nomedia]

[hoss2006]

Here's the 3 axis current draw video.
I'll make some cutting videos after I go down and make a new Oldham coupler hub, I lost one.
Why I didn't just make them all I don't know. lazy I guess.
The discs could be a pain to make, easy and cheap enough to pick them up at Mcmaster.com, part# 59985K63.
Could save $60 making your own hubs.
Hoss

[nomedia="http://www.youtube.com/watch?v=u3ikjWq2Mkk"]YouTube - G0704 3 Axis Current Draw[/nomedia]

[diyengineer]

Here's the 3 axis current draw video.
I'll make some cutting videos after I go down and make a new Oldham coupler hub, I lost one.
Why I didn't just make them all I don't know. lazy I guess.
The discs could be a pain to make, easy and cheap enough to pick them up at Mcmaster.com, part# 59985K63.
Could save $60 making your own hubs.
Hoss

YouTube - G0704 3 Axis Current Draw

What program do you use to program all your Gcode and tool paths?
Also what do you use to model parts?