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Printrbot Talk Forum • View topic - [Solved, partially] Helping to diagnose MACINTOSH issue

[Solved, partially] Helping to diagnose MACINTOSH issue

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[Solved, partially] Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Aug-Thu-21-Aug

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[Solved, partially] Helping to diagnose MACINTOSH issue

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Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Aug-Thu-21-Aug

MacBook Pro 8,3, OS 10.8 installed OVER 10.7.x (last release) [meaning I didn't do a fresh install on an unformatted disc, i ran the 10.8 install on my 10.7 install[)

I am getting USB disconnects very soon after starting a print or when manually controlling it. I get no console messages. I have to either disconnect/connect in PF or I have to disconnect/connect the USB cable. I can print from SD card. its the only way i can.
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Re: Helping to diagnose MACINTOSH issue

Postby Liquid Sky » 2012-Aug-Fri-00-Aug

Do you have any funky USB drivers for devices that you have installed? USB to serial, security dongles for other software/projects that require drivers, etc?

USB Logging : Here is a link to the , but the jist of it is : Get the developer tools & there is a utility called USB Prober to do real time monitoring of USB port communications. That was for 10.5

For 10.8 go to the site & sign up for a free developer account & go to the downloads page . Get the IOUSBFamily Log [released July 27th].

Here are the release notes [to see if you want to tackle it]

Release Notes:

This is the version of the IOUSBFamily that shipped with Mac OS X 10.8 (12A269), but with logging enabled. It will overwrite all the header files associated with the IOUSBFamily. It will install the latest versions of USBProber.app and the tool usblogger at /DevTools/Hardware. A restart is required. (USBProber.app will install the KLog.kext, if needed, when you click on the "Start" button of the USB Logger pane.)

IMPORTANT: If the incorrect version of the IOUSBFamily kernel extension is installed, the system may panic on startup. Verify that you are installing this release of the IOUSBFamily to the matching version of OS X.

---

Hope that helps...

Still waiting on my printrbot+ [Been Shipped!] I will be on a MacBookPro [8,2] running 10.6.8 [Waiting on 10.8.1 before making the plunge] & an iMac [in closet, powered down right now, but it was the first Intel iMac, white frame] with 10.7.4
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Re: Helping to diagnose MACINTOSH issue

Postby FeX » 2012-Aug-Sat-20-Aug

I was under the impression that the whole bot farm was using Macs. They must have no issues to be running so long.
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Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Aug-Sun-14-Aug

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Re: Helping to diagnose MACINTOSH issue

Postby FeX » 2012-Aug-Sun-21-Aug

Hmm. I had a few minutes to spare and tried printing from my Mac again. I got the exact issue you got. Disconnect during the 3rd layer of a print, twice in a row.
That really sucks.
It's not a problem for me as I can just use my other comp. But say I want to use my mac for printing in the future this software issue will be there.
I was looking for an alternative software to interface Slic3r with for the Mac. If anyone finds one I would also like to know.
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Re: Helping to diagnose MACINTOSH issue

Postby FeX » 2012-Aug-Sun-22-Aug

There is an option in the preferences for network connection. "disconnect if idle for X minutes" it is by default checked. I unchecked it and printed again and it was fine. Interesting :).
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Re: Helping to diagnose MACINTOSH issue

Postby mdfast1 » 2012-Aug-Mon-09-Aug

I haven't had an issue printing from my Mac. I did a 3-4 hour YODA print with no issues, I'll check versions tonight.

Edit- Mac OS X Version 10.6.8
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Re: Helping to diagnose MACINTOSH issue

Postby zachnfine » 2012-Aug-Wed-21-Aug

My first week with the printrbot+ I was having what appeared to be this issue, but it turned out the 250W PSU was resetting under load when I had the bed set to above 92ºC during ABS print. Upgrading to a 500W PSU solved the problem.
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Re: Helping to diagnose MACINTOSH issue

Postby PxT » 2012-Sep-Fri-22-Sep

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Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Sep-Fri-22-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby PxT » 2012-Sep-Sat-00-Sep

I'm about 2.5 hours in with roughly another 1.5 to go and no problems so far.
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Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Sep-Sat-01-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby PxT » 2012-Sep-Sat-10-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby CL1 » 2012-Sep-Sat-12-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Sep-Mon-13-Sep

Ok after some pain getting OSX7 installed i tried Repetier-host with my PB+ that drops USB under OSX8. same problem. I did try it with OSX6 however the "usb modem" selection in the connection menu of Repetier or Pronterface did now show up. so I upgraded the OSX6 partition to OSX7 and it showed up. however it still drops the USB after a few layers, in my test case, 12 layers.

So, this does not appear to be an OSX8 issue. it appears perhaps to be more hardware related. since I have no other issues with USB with other devices, I think its fair to attribute this issue to the Printrboard itself. it would be really great to get this fixed because it severely limits the ability to use the Printrbot with a computer.

Laine...???
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Re: Helping to diagnose MACINTOSH issue

Postby Mooselake » 2012-Sep-Mon-13-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby PxT » 2012-Sep-Mon-14-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby lwalkera » 2012-Sep-Mon-19-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Sep-Mon-21-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Sep-Mon-22-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby lwalkera » 2012-Sep-Tue-11-Sep

Is there any more data before that so I can see what request got stalled?
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Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Sep-Tue-12-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby lwalkera » 2012-Sep-Tue-19-Sep

The zip would be great, just send it to my e-mail address or put a dropbox link here.
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Re: Helping to diagnose MACINTOSH issue

Postby Michael@Oz » 2012-Sep-Thu-00-Sep

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Re: Helping to diagnose MACINTOSH issue

Postby ollebula » 2012-Oct-Sun-01-Oct

I have somewhat the (exact?) same issue. Just got my printrbot up running but after a while (differs) of playing around with the motors I just looses connection. But without pronterface telling me anything. Then it just don't respond anymore. Last night I tried to do a print. But after I press print nothing happens except I got command messages (command window to the right) of the temperatures, which now were falling, apparently heaters were turned off.
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Re: Helping to diagnose MACINTOSH issue

Postby ollebula » 2012-Oct-Sun-11-Oct

Forgot to say: I'm running osx 10.6.8 on a 2010 macbook pro and using last version ("about" doesn't give me any info) of pronterface. Slic3r version 0.9.3.

I'v now also tried to run it from windows 7 in VMware, quite a bit more successful. The printer connection does get lost but not at all as often. I have not been able to print anything via computer, when hitting print the temperature reading just keep coming in the command window. I've fiddled around a lot in the slic3r setting, thinking it was something with the temperatures not been within limit. But then I did a print from SD card and it worked just as i should. The connection to the computer died (of course..) so to restart the printer and restart the print (needed several adjustments) I had to pull the power cord.
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Re: Helping to diagnose MACINTOSH issue

Postby ollebula » 2012-Oct-Tue-01-Oct

Ok.
I've hooked up a small eeePC running windows. Default settings in slic3r, except temperatures. Worked right out of the box. My mac still stalls, running both osx or w7 in vmware. I'm happy, but still I really would like to be able to use my ordinary computer.
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Re: Helping to diagnose MACINTOSH issue

Postby timmmmyboy » 2012-Oct-Tue-13-Oct

I can confirm this is happening to me as well. Macbook Air running 10.8. If I spend more than a minute or so moving around motors or doing anything I lose the ability to talk to the Printrbot Jr. Testing it out now on a netbook running Windows 7 and I don't seem to be having the same issue there.
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Re: Helping to diagnose MACINTOSH issue

Postby ollebula » 2012-Oct-Wed-06-Oct

More info. I actually got the same behavior now on my pc when I changed the default slic3r software from the one installed with pronterface (0.7.1) to last version 0.9.?. When hitting print nothing really happended. The heater didn't heat, I actually was convinced the heater output of the pcb had died, motors didn't move, and then also when I pressed "pause" pronterface halted which also appended on the mac. Is this maybe a setting issue? Default is different in pronterfac-mac compared to the pc installation and connection slic3r/pronterface a little different in the two systems?
I will try to repeat the crashing a little more on the pc and see if a can track it down to something more specific.
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Re: Helping to diagnose MACINTOSH issue

Postby erl » 2012-Nov-Wed-16-Nov

What's the status of this problem? I'm having problems with a Mac where the printer stops mid-print. Seems to be USB dropping.

OS X 10.8.2 on a Macbook Pro 13", early 2011. MacPronterface Mar 2012.

Anything I can do to help debug?
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Re: Helping to diagnose MACINTOSH issue

Postby lwalkera » 2012-Nov-Wed-19-Nov

If you can download and use USB Prober from Apple to create a capture when it fails, that would help out to see if you're getting the same issue plexus is. If you can figure out how to get it to dump the data transferred as well as the beginning/end of the transfers, or if you have access to a USB protocol analyzer, that would be most helpful.
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Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Nov-Thu-12-Nov

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Re: Helping to diagnose MACINTOSH issue

Postby lwalkera » 2012-Nov-Thu-13-Nov

If you're really that frustrated, you can just get a Sanguinololu or similar. Brook has a bunch of them left over from the first iteration of the bot farm. If you contact him, he'll probably give you one.

You can also try to contact Paul Stoffregen ( paul@pjrc.com ) who actually wrote the USB library and see if he has any insight. I recall him talking about issues with Macs in the past somewhere.
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Re: Helping to diagnose MACINTOSH issue

Postby erl » 2012-Nov-Fri-07-Nov

I installed the Mac USB Prober, did some prints without any problems. I'll report back if I start getting the disconnect problems again.

/Erland
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Re: Helping to diagnose MACINTOSH issue

Postby zachnfine » 2012-Nov-Tue-10-Nov

I'm not experiencing the problem, so can't try this myself, but here's a random idea -- maybe try hooking the printrboard to a usb hub that's connected to the computer, rather than connecting it directly? I'd probably try with a hub that has an external power supply. That's been a solution to problems I've had with finicky USB devices in the past that caused my USB bus to reset.
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Re: Helping to diagnose MACINTOSH issue

Postby travelnaut » 2012-Nov-Sat-13-Nov

Add another with the same symptoms. OS X 10.8.2 macpronterface mar 2012

Will try a usb debug later this week. Going to try sd print next to rule out hardware.
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Re: Helping to diagnose MACINTOSH issue

Postby danimal1228 » 2012-Nov-Sun-21-Nov

I was printing fine for a few days and then all of the sudden it stopped. I am on a MacBook Pro w/ OSX 10.6.8, Pronterface Mar-2012, Slic3r 0.9.3.

Here are the 2 things that solved it for me.

System Preferences > Network > USB Serial (The one your PB is on) > Advanced > PPP >
- Uncheck the following
1. Disconnect if Idle for XXX minutes
2. Disconnect when user logs out
3. Disconnect when switching user accounts


Pronterface > Port >

Make sure you have /dev/cu.usbmodem12341 checked and not /dev/tty.usbmodem12341.

I am not sure if that is what makes a difference but from what I have gathered, the port that starts with "tty" allows hardware handshaking. The "cu" port ignores hardware handshaking and opens a direct connection with the device without having to wait for it to report its ready.



I have no idea if this is what actually solved it or not. Once I switched to these settings I was able to print normally for several prints. I will report back if it fails again. Hope this helps
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Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Nov-Tue-22-Nov

I am on OX 10.8.2 i don't see a way to get those parameters set. in network, i dont see a USB port. i can add one but then so what? some of the options you listed are there under PPP. but its set to a red status (not connected). any ideas how this can work on 10.8.2?
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Re: Helping to diagnose MACINTOSH issue

Postby danimal1228 » 2012-Nov-Fri-01-Nov

Can't help you with 10.8.2. I'm still on 10.6.8. What port do you have selected in pronterface?
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Re: Helping to diagnose MACINTOSH issue

Postby Warren_3Deee » 2012-Dec-Sat-00-Dec

Plexus, this is a shot in the dark, but have you considered trying a trial of VMware fusion and run a virtual win7 machine?

We run these at work well, but not sure if it would help or make worse a USB driver issue ? I guess it depends on the underlying problem.

Just a thought.
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Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2012-Dec-Sat-14-Dec

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Re: Helping to diagnose MACINTOSH issue

Postby erl » 2012-Dec-Fri-05-Dec

FWIW, I've decreased my data speed to 57600 bps in Pronterface, and have not been having problems lately.

I don't know if it's related or if it is something else.

It works despite going through two hubs on the way to the printer (My monitor's inbuilt, then a separate powered hub).

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Re: Helping to diagnose MACINTOSH issue

Postby scantrontb » 2012-Dec-Sat-12-Dec

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Re: Helping to diagnose MACINTOSH issue

Postby erl » 2012-Dec-Sat-14-Dec

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Re: Helping to diagnose MACINTOSH issue

Postby PxT » 2013-Jan-Wed-16-Jan

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Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2013-Jan-Wed-17-Jan

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[Solved, partially] Re: Helping to diagnose MACINTOSH issue

Postby plexus » 2013-Feb-Sun-12-Feb

Just an update... I was never able to get my Macbook Pro 17" early 2011 to work via USB. recently i scored 2006 Macbook (the first white ones) and its running 10.6.8 and connects to the PBrd via USB and works fine. so the problem is the mac and OSX. figures. i'll resist the temptation to rant negatively about Apple at this point.

Because it's an Apple issue, it will never get fixed - that's the way Apple development tends to go.

Never the less, I don't really like printing from USB because it doesn't always result in consistent print speed as the codes are sent out via USB - if there is a bog in the OS or something, the codes can be sent out slower than the printer can process them, stalling the print or slowing it down. im at a point where the print quality is pretty good, speed deviations cause recognizable issues in the print.

however its nice to have a computer dedicated to the printer. that and when i get the LCD control panel, the printer will become this amazingly fun stand-alone tool to use.

I am going to close out this thread as I now 100% confident the issue with Apple.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby hugerobots » 2013-Feb-Mon-03-Feb

I had that same model of Macbook Pro and I actually had to take it in to be repaired for a similar reason. When I work on tv sets, I use my laptop to transfer media and work on it on the fly, so data loss CAN NOT HAPPEN.

Turns out that after having Macs of all kinds since the IIc, that one model has an issue with heat spiking near the USB plug contacts. My assumption is that the heat safeties on the logic board either turn it off on purpose, or it's losing connection due to heat interfering with the signal.

Good to hear you found a solution though.

I use Repetier Host and it's been invaluable compared to pronterface.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby plexus » 2013-Feb-Mon-12-Feb

The thing is, it works with everything else i've plugged into it. you'd think that if the gcode stream would cause an internal issue that affected USB, then copying 750G of data to an external USB hard drive would do the same - the big data copies fine. i think it has something to do more with a software issue, an incompatibility with certain USB interface microcontrollers perhaps. who knows. apple sucks.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby lwalkera » 2013-Feb-Mon-16-Feb

Could also be a ground loop noise issue causing data corruption on the wire (the only way I could think of that would cause a stall on a bulk endpoint). One of the local people here had issues with his Macbook's touchpad going crazy when printing. Turns out he had his power adapter on a different circuit than what his PB was on. Putting them both on the same power strip made the issue go away.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby plexus » 2013-Feb-Tue-01-Feb

post 999

i've tried all that. made no difference. its not clear what the problem is.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby ilovetoflyfpv » 2013-Feb-Tue-06-Feb

Hi plexus

I've started to experience the same problem. Very frustrating. Pronterface just locks up. I have to do a force quit.

Cheers

Jase
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby plexus » 2013-Feb-Tue-11-Feb

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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby nadocollin » 2013-Mar-Fri-21-Mar

Hi all,

I've got a brand-new Printrbot Jr, and am running Mac OS X 10.8.2. Pronterface seems to only partially work:

- Frequently unable to connect to printer
- Printer frequently stops responding to commands spontaneously (solved by reseting printer and restarting pronterface, though it sometimes takes a few attempts)
- No Z-axis controls work at all for approximately 50 attempts now, though for about the first ten or so attempts ONLY Z-axis controls were working

I'm kind of at my wit's end... I've tried another Mac (running 10.6. something), multiple USB cables, and have checked over my wiring 100 times. In vain (way out of my area of expertise) I've tried flashing the firmware on the board (was not successful according to Arduino), installing new USB-serial drivers, and attempted to use other G-code senders (never got anything working). Am I sunk using my Mac? I'd try a test print off an SD card but I can't even calibrate the damn thing.

I've got a Windows laptop available to me at work I might try to sneak home with me on Monday out of desperation. But given weirdnesses like the total lack of response from the Z-axis, is there a possibility I've got a faulty board or something?

Thanks guys...
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby plexus » 2013-Mar-Fri-22-Mar

sounds like the same problem i had. although why i tried the different mac, it actually worked. but i would guess if its an apple problem there will be some machine configurations that cause the problem. we have no support on this so we have no idea whats causing it or what to do about it. so go buy a PC and sock it to Apple.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby cmcguinness » 2013-Apr-Fri-19-Apr

I have a MacBook Air and have had no problems at all.

The machine is:

Model Name: MacBook Air
Model Identifier: MacBookAir3,2
Processor Name: Intel Core 2 Duo
Processor Speed: 1.86 GHz

I plug the USB cable to the Printrbot right into the machine directly, no hub.

That being said, it's hard for me to know what kind of strange USB drivers might be at play. I've had all sorts of strange hardware (from Arduinos to TI's $5 controller board) plugged into it, and one of them might have had a driver that made it all work just fine...
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby hugerobots » 2013-Apr-Tue-10-Apr

Oddly enough I just tried the left side USB on my retina mbp and it doesn't want to connect to PBrd. What's even stranger is when I plug it into a USB 2 hub, then that same left side usb port it works just fine. Although when that hub has other stuff plugged into it, the connection hangs.

I'm thinking maybe this has something to do with the behaviour of the usb 3 handling switch with 10.8.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby kbarre123 » 2013-Apr-Thu-14-Apr

I had the same problem when using my Mac (10.6.8) with Repetier-Host. The program would crash each time I sent a command (other than to turn the fan off and on). Repetier-Host just released some updates, one of which fixed the crash problem I was experiencing. I no longer have that issue *knock on wood*. So, for those of you who've abandoned all hope of using Repetier-Host, give it another shot and perform the updates and see if they haven't fixed it for your current configuration too. So glad to not have to rely on SD cards anymore.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby plexus » 2013-Apr-Thu-15-Apr

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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby kbarre123 » 2013-Apr-Fri-10-Apr

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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby sandworm » 2013-Jun-Sat-15-Jun

I'm experiencing the same problem, random USB disconnects from my MacBook Pro. I'm using the newest repetier, but it hasn't solved the problem. I'm trying out the sd card as a better means of printing, hopefully that'll work. Much plastic has been wasted...
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby sandworm » 2013-Jun-Sun-22-Jun

Switching to SD Card printing did the trick!
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby thawkins » 2013-Aug-Mon-05-Aug

I have some experiences that may throw some light on what is happening.

I have a printrbot simple which i have had for about 2 weeks, for the first few days after assembling it, it was fine, and worked reliably from my macmini.

Then slowly over time, it started to exhibit the issues described in this topic. Random stalls, usb disconects, not completing prints.

I tried moving to different os,s, linux, raspberry pi, running raspbian etc, but while each time it got a bit better, it slowly relapsed, eventialy it would stop even when printing from sd card. Im lucky having several diffetent computers running a varity of operating systems , windows, linux (fedora and debian), osx etc, nothing worked. The system kept getting worse.

Finaly just after a print had stopped dead, printing from an sd card, i gave the board a squirt of freezer spray, and amazingly the board slowly started printing again, like a clockwork toy being wound up again, i have never seen anything like it in my life, and i work with a lot of electronics.

My theory is (unconfirmed) that the ceramic resonator used clock the board is in my case extremly temperature sensative, and the frequency of the board varies with temperature, i can actualy see the printer slow down as the temperature winds up to about 36 degrees, and speed up when i squirt it with coolant, often from a full stall, it will recover and continue. I think my board is a little extreem, but this is probaly what is effecting the reliability of the usb comms you guys are seeing, once my board starts to drift, i see exactly the same symptoms.

Unfortunatly im on the other side of the world, so getting a replacement will take 5-6 weeks, but for now i have restored full functionality by having a desk fan blasting away at the board, abd having the aircon on full. Not practical in the long term.

Im tempted to hack out the ceramic resonator, and replace it with a crystal and two 22pf caps. But i will wait until i have had the conversation with the printrbot guys.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby plexus » 2013-Aug-Mon-10-Aug

I don't think your possibly over-heated processor clock is what is causing the mac usb issue. the issue in this thread doesn't cause a slow decline in speed/reliability - it just doesn't work. you start printing and it stops soon afterwards. although no confirmed it is likely an issue with OSX.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby andersonmatt1125 » 2013-Aug-Wed-23-Aug

Same irritating issues.

-Printrbot Plus (v2)
-MacBookPro6,2
-OS 10.8.4
-Repeteir .56
-Have never completed a print through USB, stops after several layers. Usually quits at the first.
-Will get "commands waiting" error if I try to send too many commands to the printer, needs to be restarted.

This is beyond irritating. I have a feeling that my support ticket was completely ignored because I asked for an official response on mac compatibility. Even though it was just a small part of why I opened the ticket. Well over 3 weeks and no response.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby qubist » 2013-Oct-Sun-13-Oct

Hi guys. I started printing on a Printrbot Jr. v2 on a Mac running snow leopard (not the newest OS) and this issue popped up. I could print for up to a couple of minutes, but then the print would just stop. Now I a using an old dinosaur of a PC and it works fine (if not a little slow because of the ancient computer.) More recently, I helped build a Simple for a school, and that used a newer MacBook Pro with OS Lion (or the newest OS) and that printed fine. Both of these printers are hooked up by USB. Hope this extra information helps!

-Will
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby andersonmatt1125 » 2013-Oct-Tue-16-Oct

Well OS 10.9 was just released, and I was eager to see if the issue was resolved. Considering that it is suspected to be a mac specific issue, I figured it at least had a chance to fix this bug. Unfortunately that's not the case. On my machine/printer configuration described in an earlier post, there was NO improvement in trying to print through Repetier Host via USB. In fact, it seems to be even worse. I tried only twice, but was unable to even start extruding plastic. The printer navigated to the starting point, moved a few mm, then just stopped.

I have several other computers that have also failed to print previously. I will install Mavericks on all of them, and try again. If I don't come back to edit this post, just assume that none of the computers achieved a print.
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Re: [Solved, partially] Helping to diagnose MACINTOSH issue

Postby andersonmatt1125 » 2013-Oct-Wed-03-Oct

Well the bad news is that I tried multiple computers and failed to get a successful print. The 2013 Macbook Air strangely managed to get to the third layer every time, while the others all stopped at layer 1. I even installed Windows 7 through bootcamp on my MacBook Pro and saw no change.

But it's not all bad news! For some desperate reason, I just tried to print with a completely new host software: MatterControl. As I expected, the print stopped before the first layer was complete. I then reached around to shut off the printer when it sputtered back to life! It tried to continue on printing, starting where it left off. It never managed to go more than a minute steady, with maybe 5-20 seconds of time paused between each burst of printing. This is behavior I have never seen when trying to print with Repetier or Printrun.

I really think I may have found something here, because it's logs show something that I've never seen in RH. It reads "Error:Line Number is not Last Line Number+1, Last line [xxx]. The software will then try to resend that "last line" one number higher. Once it does that, it seems like the print starts up again until the error crops up again.

Screen Shot 2013-10-23 at 3.16.26 AM.jpg

The fact that MatterControl is able to get prints to restart is huge as far as I know. It could mean that the bug is not due to Mac OSX, or at the very least that a workaround may be possible. If anyone else has a better understanding of this, I'd really appreciate you throwing any ideas our way.
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