Prusa Research i3 MK2.5S Multi Material Upgrade 2S, Руководство пользователя

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10.2 SpoolJoin
When printing in Single mode with filament sensor turned on, the SpoolJoin function can be
switched on in
​ LCD Menu - Settings - SpoolJoin [on/off] ​ . This function enables automatic
switching of filament spools in case one of the filaments runs out. This is especially useful
when you want to get rid of filament scraps that are still on spools without the need to pay
close attention to the printer during the printing process.
The SpoolJoin function cycles through all filament slots in a loop, so e.g. if you run out of
filament in slot 1, the printer will automatically move to slot 2. In the meantime, you can
replace the spool of filament in slot 1, so once the printer reaches slot 5, it will go back to slot
1 and continue printing.
11 Handling
11.1 Mounting/Unmounting the MMU2S unit
Follow these steps:
1. Unscrew the Festo coupling from the extruder body.
2. Unplug the two connectors from the MMU2S board that transfer power and data from
the EINSY board.
a. Use an Allen key to push on the connector release.
3. Tilt the MMU2S unit forward to unclip it from the frame.
Pict. 29 - Unmounting the MMU2S unit in three steps
If you wish to print without the MMU2S unit installed, there are two possible options:
1. The easiest way ​ is to use the printer as it is. So leave the extruder in MMU2S
version. In that configuration, the filament IR sensor detects the absence of filament
when it is almost under the Bondtech gears. This means less reliability of the filament
unload. But in most cases, the unload will be successful. If the filament gets stuck
under the Bontech gears, just use another piece of filament to go through.
2. The more reliable ​ and also more difficult is to rebuild the extruder to original MKS3
version. See the MK3S assembly manual, how to do that. We recommend this
solution only if you are planning to unmount the MMU2S permanently.
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