On Sunday 07 December 2014 12:24:59 Jon Elson did opine
And Gene did reply:
> On 12/07/2014 09:50 AM, Gene Heskett wrote:
> > The lsusb -t (as root) seems to give the needed results:
> > 
> > gene@shop:~/linuxcnc/nc_files$ sudo lsusb  -t
> > /:  Bus 05.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> > /:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> > 
> >      |__ Port 2: Dev 2, If 0, Class=HID, Driver=usbhid, 1.5M
> > 
> > /:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> > /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> > /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/8p, 480M
> > 
> >      |__ Port 4: Dev 2, If 0, Class='bInterfaceClass 0x0e not yet
> >      |handled',
> > 
> > Driver=uvcvideo, 480M
> > 
> >      |__ Port 4: Dev 2, If 1, Class='bInterfaceClass 0x0e not yet
> >      |handled',
> > 
> > Driver=uvcvideo, 480M
> > 
> > I'd take a wild guess and say that camera actually needs a USB-3.0
> > port?
> 
> No, it probably does not even SUPPORT USB 3.0,  USB 3.0 is a
> 5 gbit/second bit rate!
> USB 1.0 is 1.5 Mbit/sec (called Low Speed), USB 1.1 is 12
> Mbit/sec (Called full speed),
> and USB 2.0 is 480 Mbit/sec (called High Speed).
> It is showing your port 4, Dev 2 as 480 M, so that should be
> USB 2.0.
> So, it may be that your CPU doesn't have enough cycles to
> process the video.
> Are you using software stepping on that machine?  That would
> eat up most
> of the CPU cycles.
> 
> Jon

Yes Jon.  But I played with just the camera by itself, LCNC wasn't running,
and it was not noticeably faster.

And today, with the worldwide button checked, an ebay search did not spit
out one of that style of cameras. 19 megabyte fuji's that look a lot
like my Nikon L120 for under a $100 bill, but nothing in the physical
format of the one I am using.  Christmas demand absorbing them?  Dunno.

Thanks Jon.

And if I can find a suitable motor PSU for my mill that would give me
enough speed to warrant a 5i25 in that box, I'd sure convert it.

And I believe my psu problem was solved by fleabay just now, I found
(one per motor & a spare) & made offer at 22$ for 5, $110 total.

<http://www.ebay.com/itm/48V-Regulated-Switching-Power-Supply-3-25A-150W-AC-DC-
PSU-/141477126369?pt=LH_DefaultDomain_2&hash=item20f0b1a0e1>

I'll see if it has a trimmer that will turn it down a few volts for safety
with my 2M542 drivers & that will lead to a square tube mount with a fan
blowing down the tube. 3 of those motors are 262oz double stack nema 23's,
and the one on my z axis is a 525oz triple stack, 8 wire, wired in series.
Its timing belt geared down by a 17 to 42 pulley ratio, driving a double
nutted rotating nut assembly what walks itself up and down a piece of 1/2"
10tpi Nook acme screw fixed to the slider casting by rotating the head box
90 degrees to clear access to the casting from above.  Since I put ball
bearing feet on the Z slider, backlash and stiction are essentially gone,
giving me about 2.5 thou for a backlash comp setting in the .ini file.

This mill now is a far cry from the piece of very early Chinese junk I
bought from harbor freight about 20 years ago.

X & Y are ball screw driven now. The Z drive is my own design bolted
to the top of the post that puts the driving screw in front of the post,
and the LMS big tables kit has been installed.  And a rather mickey mouse
overhead pulley for counter weight springing. It's almost a real mill now!
I redo the stuff on it that are the worst itches as I go.  The OEM Z drive
made it useless for anything but a drill press.  Any pressure on a drill
bits tip locked the sled in position on the post so the downforce I was
able to measure maxed out at 5 lbs even if you started to buckle the OEM
screw.  The current lashup can put 155 lbs on a drill bit by the time the
motor slips a cog. An X31 times improvement.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS

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