Flashing red light

[Neville Young @neville Melbourne, Australia]

I printed a number of files from a student successfully. The next day the same parts were to be printed but a different to the day before. After starting the printing successfully when I returned later the printing was stopped without completing all of the first layers for each part. The display screen was RED, flashing on and off without any text showing. I thought that it may have been a problem with the student’s file so got him to give me a copy of the files to check. The next morning I had another student who had also printed out his parts a couple of days earlier and wanted to print out more parts. Everything started well but again when I returned the display was flashing RED, without text and the printing had failed before completing the first layers.

There have also been issues with the initial extrusion of plastic where it is supposed to be deposited in the little v groove. The plastic remains stuck to the nozzle and has at time interfered with the print job.

At this stage I am more concerned with flashing red display. Can you help?

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[BHudson @bhudson I have both RoboxDual and other Robox versions Arizona, USA]

@neville Flashing red means the printer has stopped while not being connected to a computer. It could be that your computer is going into sleep mode or is turning off its USB connection to save power. I have also seen the error message get stuck “behind” the main window - clicking on the main window will not respond, but when I minimize the main window with the taskbar button it will show the error.

If the red light flashes while the printer is connected to the computer, you will need to open a support ticket as this is an indicator that the printer has experienced a serious problem and you will need to take additional steps to solve it.

The mini-purge is not supposed to be deposited in the groove. There is a wiper that is supposed to be installed in that groove. If you have lost yours you will need to purchase a replacement.

Have you calibrated your print head yet?

I operate two Betas and four Production Robox.
I am the US/Canada Technical Support engineer for the Robox.
www.hudsondesignlabs.com

[Neville Young @neville Melbourne, Australia]

The head has been calibrated and recalibrated about 6 weeks ago. All the prints done since we purchased the Robox in Nov last year have been without the computer attached after loading the files.

I will check the wiper on Monday after the weekend.

[Pete @pete I have both RoboxDual and other Robox versions CEL HQ Bristol UK]

@neville I’ve moved this to a new topic as it was attached to quite an old one.

Red flashing is default for any error. If you can keep a computer on and connected it should show what the error is.

For official support please visit www.cel-robox.com/support/ and create a ticket

[Ian Blinkhorn @aeroit My Robox is a Blue Commercial Version]

We’ve been having a similar problem with our new RoboxDual, the USB connection drops randomly causing the printer to stop, so we are now pulling the USB cable as soon as the print starts.

this is happening using the same PC(Win7) that we had previously used without issue with our RBX-01

[Ian Blinkhorn @aeroit My Robox is a Blue Commercial Version]

Oh and the wiper, I always pull the one on our RBX-01 up a little bit as otherwise the nozzle is too high so doesn’t wipe. On the RoboxDual we haven’t had any such issues

[BHudson @bhudson I have both RoboxDual and other Robox versions Arizona, USA]

@aeroit Try a different USB cable. Sometimes it will make better contact.

I operate two Betas and four Production Robox.
I am the US/Canada Technical Support engineer for the Robox.
www.hudsondesignlabs.com

[Ian Blinkhorn @aeroit My Robox is a Blue Commercial Version]

We’ve had various cables in the machine with varying levels of success, seems random tbh. This finally came to a head yesterday after upgrading to Automaker v3 the printer could not be recognised regardless of what we tried (sometimes it appeared in a Com port, sometimes not but never picked up by AM). So I checked the support portal and it talks about an issue with grounding and suggests using a USB hub in line, hooked one up and the Dual appeared straight away. We’ve never had any such issues with our original unit so it looks like a design fault on the newer device but at least we have a work around until our root/mote turn up

[Pete @pete I have both RoboxDual and other Robox versions CEL HQ Bristol UK]

May be a full device list.

https://robox.freshdesk.com/support/solutions/articles/1000156720

This may also help

https://robox.freshdesk.com/support/solutions/articles/1000063054

For official support please visit www.cel-robox.com/support/ and create a ticket

[BHudson @bhudson I have both RoboxDual and other Robox versions Arizona, USA]

@aeroit If it were a design fault with the RBX02, we would be seeing it everywhere. Since you are the only person I have seen reporting this issue with the RBX02, I suspect it is either a PC issue or a cable issue.

I also do a safe mode startup after firmware upgrades:

Unplug the USB and power cables.

Make sure the printer switch is off.

Press and hold the eject button on the printer.

Plug in the USB cable.

Release the eject button.

This solves most connection issues. If the printer connects, unplug the USB cable and then plug in and turn on the printer normally. It should still connect. If not, there is a ground issue with the power supply and you should open a ticket.

I operate two Betas and four Production Robox.
I am the US/Canada Technical Support engineer for the Robox.
www.hudsondesignlabs.com

[Ian Blinkhorn @aeroit My Robox is a Blue Commercial Version]

And yet it is listed as a known issue on the support portal.

We have never had any issues with any other USB device on this PC (including our original Robox) and have tried mutiple USB cables.

we have not had any further issues since connecting via a USB hub, including pre and post the firmware upgrade.

[Pete @pete I have both RoboxDual and other Robox versions CEL HQ Bristol UK]

It is an issue which we resolved for more recent production quite a long time ago.

For official support please visit www.cel-robox.com/support/ and create a ticket

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