CNC Piranha Problems
Brad Freese
I was playing around with VCarve and the CNC Piranha on Saturday and ran into two problems. Has anybody else seen these and/or know how to deal with them?
Problem 1: The Piranha stops moving around in the middle of a job.
I made several different jobs using VCarve, and when I executed them the Piranha would start moving and then stop in the middle of executing. The router head stays in place and doesn't move any more. On the touch console the time keeps counting up, but the % Transmitted stops going up. (The router doesn't spin down but that's because the router itself isn't controlled by the computer)
I tried executing the same job twice, and both times the router head stopped in the same place which makes me wonder if the problem is in the Post Processor in VCarve.
There is an option in the VCarve Post Processor that says "Output direct to machine." I tried saving a job twice - once with it checked, the other without it checked. When I DID have it checked I got these 2 error messages.
Both times a job file was saved, and both times the file was the same size so this checkbox might be completely irrelevant to the stopping-in-the-middle-of-the-job issue, but I'm including it here anyway.
Problem 2: This only happened once. I was moving the gantry around using the touchpad, specifically I was tapping the "Away Y+" button when it seemed like the button got stuck in the "on" position. The gantry moved to the back of the machine and then started grinding against the backstop trying to move further than it physically could. Since there was no E-Stop! button that appeared I had to physically switch the machine off an on again to stop it grinding.
Ray Scheufler
My gut feeling on the first issue is that it doesn't like your flash drive for some reason. I suspect that there is a limit to how far into a filesystem it can access. Your file happened to be part on the side it can access and part on the side it can't. This would cause it to just fail reading. I'm not sure what filesystems the piranha supports. It is also possible that the firmware can read the first block but not the next block.
My gut feeling on the second issue is a bug in the firmware. It may have missed a release signal. It may not properly handle a broken connection to the display. Your action of turning off the unit was the correct one.
Both of these could be caused by an intermittent connection with the display unit, although i find that unlikely because it would have probably exhibited other faults.
I'll have to dig in and try going through the motions myself and see if I can make it work.
Ray Scheufler
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Bailey Steinfadt
Brad, feel free to wipe that SD card with the Debian image I loaned you to test Ray's theory on #1. (Assuming you're done with it for Beaglebones.)
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Ray Scheufler
Why is there an sd card involved? The piranha has a usb port. Anyone have a spare usb drive they wouldn't mind reformatted? It would probably be good to have a drive specifically for the machine like we have sd cards for the printers.
Ray Scheufler
Brad, feel free to wipe that SD card with the Debian image I loaned you to test Ray's theory on #1. (Assuming you're done with it for Beaglebones.)
On Sun, May 7, 2017, 20:24 Ray Scheufler <dr.bob....@gmail.com> wrote:
My gut feeling on the first issue is that it doesn't like your flash drive for some reason. I suspect that there is a limit to how far into a filesystem it can access. Your file happened to be part on the side it can access and part on the side it can't. This would cause it to just fail reading. I'm not sure what filesystems the piranha supports. It is also possible that the firmware can read the first block but not the next block.
My gut feeling on the second issue is a bug in the firmware. It may have missed a release signal. It may not properly handle a broken connection to the display. Your action of turning off the unit was the correct one.
Both of these could be caused by an intermittent connection with the display unit, although i find that unlikely because it would have probably exhibited other faults.
I'll have to dig in and try going through the motions myself and see if I can make it work.
Ray Scheufler
On May 7, 2017 4:09 PM, "Brad Freese" <bradley...@gmail.com> wrote:
--I was playing around with VCarve and the CNC Piranha on Saturday and ran into two problems. Has anybody else seen these and/or know how to deal with them?
Problem 1: The Piranha stops moving around in the middle of a job.
I made several different jobs using VCarve, and when I executed them the Piranha would start moving and then stop in the middle of executing. The router head stays in place and doesn't move any more. On the touch console the time keeps counting up, but the % Transmitted stops going up. (The router doesn't spin down but that's because the router itself isn't controlled by the computer)
I tried executing the same job twice, and both times the router head stopped in the same place which makes me wonder if the problem is in the Post Processor in VCarve.
There is an option in the VCarve Post Processor that says "Output direct to machine." I tried saving a job twice - once with it checked, the other without it checked. When I DID have it checked I got these 2 error messages.
Both times a job file was saved, and both times the file was the same size so this checkbox might be completely irrelevant to the stopping-in-the-middle-of-the-job issue, but I'm including it here anyway.
Problem 2: This only happened once. I was moving the gantry around using the touchpad, specifically I was tapping the "Away Y+" button when it seemed like the button got stuck in the "on" position. The gantry moved to the back of the machine and then started grinding against the backstop trying to move further than it physically could. Since there was no E-Stop! button that appeared I had to physically switch the machine off an on again to stop it grinding.
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Bailey Steinfadt
Ah, sorry. Read flash drive and thought "flash memory"....
Why is there an sd card involved? The piranha has a usb port. Anyone have a spare usb drive they wouldn't mind reformatted? It would probably be good to have a drive specifically for the machine like we have sd cards for the printers.
Ray Scheufler
On May 7, 2017 8:40 PM, "Bailey Steinfadt" <runne...@gmail.com> wrote:
Brad, feel free to wipe that SD card with the Debian image I loaned you to test Ray's theory on #1. (Assuming you're done with it for Beaglebones.)
On Sun, May 7, 2017, 20:24 Ray Scheufler <dr.bob....@gmail.com> wrote:
My gut feeling on the first issue is that it doesn't like your flash drive for some reason. I suspect that there is a limit to how far into a filesystem it can access. Your file happened to be part on the side it can access and part on the side it can't. This would cause it to just fail reading. I'm not sure what filesystems the piranha supports. It is also possible that the firmware can read the first block but not the next block.
My gut feeling on the second issue is a bug in the firmware. It may have missed a release signal. It may not properly handle a broken connection to the display. Your action of turning off the unit was the correct one.
Both of these could be caused by an intermittent connection with the display unit, although i find that unlikely because it would have probably exhibited other faults.
I'll have to dig in and try going through the motions myself and see if I can make it work.
Ray Scheufler
On May 7, 2017 4:09 PM, "Brad Freese" <bradley...@gmail.com> wrote:
--I was playing around with VCarve and the CNC Piranha on Saturday and ran into two problems. Has anybody else seen these and/or know how to deal with them?
Problem 1: The Piranha stops moving around in the middle of a job.
I made several different jobs using VCarve, and when I executed them the Piranha would start moving and then stop in the middle of executing. The router head stays in place and doesn't move any more. On the touch console the time keeps counting up, but the % Transmitted stops going up. (The router doesn't spin down but that's because the router itself isn't controlled by the computer)
I tried executing the same job twice, and both times the router head stopped in the same place which makes me wonder if the problem is in the Post Processor in VCarve.
There is an option in the VCarve Post Processor that says "Output direct to machine." I tried saving a job twice - once with it checked, the other without it checked. When I DID have it checked I got these 2 error messages.
Both times a job file was saved, and both times the file was the same size so this checkbox might be completely irrelevant to the stopping-in-the-middle-of-the-job issue, but I'm including it here anyway.
Problem 2: This only happened once. I was moving the gantry around using the touchpad, specifically I was tapping the "Away Y+" button when it seemed like the button got stuck in the "on" position. The gantry moved to the back of the machine and then started grinding against the backstop trying to move further than it physically could. Since there was no E-Stop! button that appeared I had to physically switch the machine off an on again to stop it grinding.
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Ray Scheufler
No problem. When I read sd card I thought there was something overly convoluted with a USB to sd adapter. In theory it would work. In practice a normal USB drive would probably be better.
Ray Scheufler
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Bailey Steinfadt
I have an extra of those, too if someone needs too borrow it. Is probably Chinesium as it was free, but let me know.
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Brooke Hedrick
Sent from my iPhone
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Ray Scheufler
I don't mean to rake this thread and derail it more, but yeah we mix and match in about every combination. We should probably have some virus scanning so that we don't infect any drives.
I know that I use my personal usb drive to transfer files on to the laser. I know others do as well.
The sd cards in the 3d printers mainly are plugged into the space laptop for slicing but some members slice on the personal machines and use the space sd card.
The piranha uses usb drives for operation. I'm not sure what policy we should have for its drives. I would like to have one available and designated with that machine because I don't always have a drive on me.
Ray Scheufler
Tim-S
Brooke Hedrick
Just probably not a good idea. I am sure risk is low, but is it worth it?
I agree, the CNC machines themselves should be at low/no risk - unless they run a full O/S.
It would probably be better to have people download the files via a 515 PC from some place like github, google drive, etc. onto the shared USB or sd card.
Just my $.02.
Sent from my iPhone
> On May 7, 2017, at 9:47 PM, Tim-S <t.she...@gmail.com> wrote:
>
> I store my collection of viruses on the pirhana, I don't think you'll give it anything new just from whatever happens to be living on your laptop. Nothing to worry about 😀
>
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kristau
many different users.
Tired programmer
Coding late into the night
The core dump follows