Left and Right Extruder Leveling

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Mike101
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Joined: Wed Jul 13, 2016 1:58 am

Left and Right Extruder Leveling

Postby Mike101 » Fri Aug 19, 2016 4:16 am

Hi,

Just wondering what the extrude option on the very right of the utilities menu does?
I have just removed the hot end and I've tried leveling the left and right nozzle by using a business as a feeler gauge.
Then I noticed this option on the utilities screen and I cant find any details of what it's meant to do.
I've pressed it and nothing has happened.

Thanks

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Vicky@Raise3D
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Re: Left and Right Extruder Leveling

Postby Vicky@Raise3D » Fri Aug 19, 2016 5:42 am

The red icon is an extruding button for loading filament.
2.png


It only works when the nozzle temperature is higher than 170C.

Jetguy
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Re: Left and Right Extruder Leveling

Postby Jetguy » Fri Aug 19, 2016 12:14 pm

I think the more important lesson is to learn what that screen means beyond what was said.
Everything in the printer involves distances including extruding (pushing plastic through the hot nozzle).
It's important to know what those values are and for the extruder, that is distance of raw unmelted plastic going into the top of the extruder, not the distance exiting the nozzle.
So other than the load function below that, the top arrows are direct command distances and as warned, the extruders will only allow filament to move if set above and actually at 170C or higher.

When would you want to use those?
#1 for calibrating and testing commanded extrusion distance VS actual moved distance to identify feeder issues and fine tuning
#2 for precision loading when using with the Mosaic Palette color splicing device to get up to 4 colors out of a single nozzle.

Jetguy
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Joined: Tue Mar 22, 2016 1:40 am
Location: In a van, down by the river

Re: Left and Right Extruder Leveling

Postby Jetguy » Fri Aug 19, 2016 12:32 pm

This is documenting the Utility functions on the LCD. Note, depending on model of printer, the locations of these icons and general look changes slightly, but the functions are universal across N1,N2, and N2+.
Attachments
LCD screen.jpg

Jetguy
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Joined: Tue Mar 22, 2016 1:40 am
Location: In a van, down by the river

Re: Left and Right Extruder Leveling

Postby Jetguy » Fri Aug 19, 2016 12:42 pm

Actual hardware nozzle leveling is performed mechanically per this guide. (I thought we had a dedicated guide but here is a snippet) http://www.raise3d.com/pages/shifted-layers

Also discussed in this thread viewtopic.php?f=4&t=747

Simply unload any filament so the nozzles are not fighting plastic inside
Loosen the fans to get to the side setscrews and loosen the front setscrews.
home the bed up
use feeler gauges or other method to determine nozzle heights are equal
lock heads/nozzles with set screws, replace fans, run test prints.

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walshlg
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Re: Left and Right Extruder Leveling

Postby walshlg » Fri Aug 19, 2016 12:48 pm

ALSO WIPE the nozzles with a paper towel when hot to get any plastic off the outside!

Mike101
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Joined: Wed Jul 13, 2016 1:58 am

Re: Left and Right Extruder Leveling

Postby Mike101 » Sat Aug 20, 2016 1:44 am

Thanks, So both Nozzles should be at the same height? I watched this video from the 3D printing nerd https://www.youtube.com/watch?v=YcaNlz_55Ho he talks about having some issues I've had.

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Vicky@Raise3D
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Re: Left and Right Extruder Leveling

Postby Vicky@Raise3D » Sat Aug 20, 2016 4:51 pm

No. We install the right nozzle a little higher than left by default to decrease the possibility of nozzle hitting. If you want to print with dual-extruder model, you need to align the nozzles first.

Mike101
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Joined: Wed Jul 13, 2016 1:58 am

Re: Left and Right Extruder Leveling

Postby Mike101 » Sun Aug 21, 2016 9:58 am

OK Thanks.


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