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Discussion in 'Calibration, Help, and Troubleshooting' started by R Design, Mar 14, 2016.
If not, most grateful for any guidance...
btw. is it reliable or a high risk procedure?!!
I think anyone did yet.
Here Pausing prints I posted that there is an option in the firmware but in the current release it is disabled.
I have not any experience with changing filaments even not on my UM2 nor do I know how good that option in Marlins is...
I've used it on my k8200 with the lcd and it worked great --- filament change --- hit button --- swap filament --- hit button --- carries on from where it stopped,
OK, so we're not there yet.
In that case what do you do? Is there a trick for joining the end of the filament from one spool to the beginning of another?
(I've not had the joy of my own printer to manage before!)
I think there is no other option than activating it in the firmware.
Joining filament ends would not work IMHO. Maybe it gets stuck in the tube before it reaches the extruder or break before it. Then the joined position has to pass the extruder and there is much pressure on the filament so I would assume it would break there. I don't think you have any chance of feeding it manually over the extruder while the print is running.
You will move or bend the print head which will result in a bad print during that layers.
So we have to manage lots of "short spools"?
I kinda always thought people were doing something.
Even googled this: http://richrap.blogspot.be/2011/06/multicolour-3d-prints-and-3mm-filament.html
@R Design it's a real problem joining filaments as the dimensions of the filament are difficult to control so that, as Alex says, there is a risk of jamming. Also, some filament types are not so easy to join either. I have tried but the joints tended to fail. Richard Horne has been successful in this venture but his experience is huge,
Hmmm.... I vaguely remember somebody saying you can feed one filament through after the first.
I'll be trying that tonight.
Will set the alarm clock.
I do recall @LiviLammister id this once.
There is a picture of Livi doing this in the Benchy Armada thread.
actually i think she fused hers together prior to printing
OK I'll have to get onto Livi about that.
Last night was up several times checking the filament.
Of course it made it through the night in the end and the print ended when I put the kettle on the morning: there were five turns left on the spool!
Decided to use those turns to try starting to print a 300*200mm shell.... The BB tracked the edges of the PCB perfectly.
One thing I did notice though (with IR camera) is that the corners of the PCB are not up to temperature (by rather a long way). Perhaps this is a problem with cooling rather than heating? Before doing some really big prints will look into that...