Printing without heat

Vertex 3D Printer Vertex - Issues while printing
1

I was just trying to print a new extruder and came back after an hour or so. The printer had stopped like it was ready with Z at about 100. The result of the print was a dissaster so I removed the scrap and started a new print from SD.
To my surprise the printer the starts to print in mid air. Z was still at 100 and without heating extruder or table.

I of course stopped this and made a manuel Home.
Turned the printer Off and started again with print from SD. Same behavvior agan with emmediate print movement without waiting for heat anywhere.
Tried once more with the exact same result.

Its not that it thinks the ext and table are hot, they ar around 23 degrees in the display. Its like its just ignoring the start of the gcode.

Whats up ?

2

Your G-code might be corrupted. Did you check it on the SD card?

3

It seems to be OK and I made a second slice to make sure but the result is the same.

Edit:
I will check it letter by letter this afternoon. If this is the problem then the problem must be in Repetier that generates the code.

4

Maybe the downloaded stl file was corrupted in some way?

5

I have checked the gcode letter by letter and there is nothing wrong there.
Just tried to do a print from an old slice and it worked fine for half the print. Then I guess it came loose from the board and made a mess.

I then started a new print and and it started immedeatly without heating and with the board at about 100mm.

6

You mentioned it didn’t heat your bed. Do you have a heated bed?

7

I’m just baffled and really don’t know what to answer to such a question ?

Isn’t it very obvious I do have a heated bed ? Why would it otherwise be a problem it does not warm it ???

8

A simple “yes” would have sufficed. I was just making sure. There was no need for you to be so rude and call me out on it.
I wanted to ask you about it and how you power it.

As for your problem, reinstall Repetier host.

9

Sorry Daniel
I did not mean to be rude, I was just amazed by your question.
I use a power supply 12v bought at ebay for 15 usd (?)
A mk3 heatbed from reprap.me, cork insulator and a solid state relay from the same company

10

[quote=“monza64”]Sorry Daniel
I did not mean to be rude, I was just amazed by your question.
I use a power supply 12v bought at ebay for 15 usd (?)
A mk3 heatbed from reprap.me, cork insulator and a solid state relay from the same company[/quote]
Thank you and no worries. Do you know what wattage it was? I do not wish to derail/hijack your thread so please reply here:
viewtopic.php?f=64&t=15672&p=72814#p72814

Did reinstalling Repetier Host help?

Thank you.

11

I will come back to you in the other thread on heat bed.

Actually I have not reinstalled anything yet. For some reason it has been working, or at least started to work in a correct way when I have tried lately but only after it has been shut off for a while.
I have a request from Velleman to return the machine for investigation but I fear it will not demonstrate the fault in such a situation. They also want me to return it in original condition which will take me quite a few hours to accomplish.

I will do some more tests to see if the behavior persists. If it does I will reinstall the firmware.

I don’t think reinstalling Repetier will do me any good since the gcode on the SD card, which I always print from, is correct. I have checked it letter by letter comparing with an old slice that have worked before and there are no differencies.

12

[quote=“monza64”]I will come back to you in the other thread on heat bed.

Actually I have not reinstalled anything yet. For some reason it has been working, or at least started to work in a correct way when I have tried lately but only after it has been shut off for a while.
I have a request from Velleman to return the machine for investigation but I fear it will not demonstrate the fault in such a situation. They also want me to return it in original condition which will take me quite a few hours to accomplish.

I will do some more tests to see if the behavior persists. If it does I will reinstall the firmware.

I don’t think reinstalling Repetier will do me any good since the gcode on the SD card, which I always print from, is correct. I have checked it letter by letter comparing with an old slice that have worked before and there are no differencies.[/quote]
I use Raspberry Pis a lot and from that I can tell you SD cards are unreliable. Sometimes I wrote to an SD card and check it, but when I put it in the vertex it doesn’t read the file and does nothing. Other times the vertex hangs on initialising the SD card. One thing to try would be a different SD card, but if that doesn’t work then perhaps try re flashing the Arduino board.

13

I have two cards alternating between and the behavior has been the same from both.
I think it must be two completely separate faults, one if it does not read the card at all (as you describe) and another if it just skip the start up sequence and starts printing immediately. Never had a problem with initializing the card either.