First of all Nylon is just a printing material, so the
only things, that matter are:
-extruder
-build platform
-hotend
This list also resembles the importance of the three
aspects.
The extruder
The extruder is the part of the printer, that makes the
filament move, it consists of a motor, which has a gear
attached. The filament is pushed against the gear and by
moving the gear the motor can move the filament very
precisely. You should look for a spring loaded extruder
that uses 1,75mm filament. 3mm or 2,85mm filament works
too, but 1,75mm is generally speaking better for higher
resolution prints.
Aside from this theres not that much special about the
extruder, the gear size doesnt matter alot for Nylon, as
long as the teeth are big enough the extruder should work
fine. Id recommend printers that use gears similar to the
e3d hobbed goblins.
As Nylon isnt very flexible it would be fine to use a
bowden extruder. Direct drive extruders or geared direct
drive extruders both work fine too, but to get the maximum
speed a bowden extruder would be the way to go.
The build platform
Nylon doesnt necessarily need a heated bed, but its
recommended. There are a few printbed surfaces (adhesives)
that are recommended for Nylon, but youll have to test out
the different adhesives as all of them work differently on
each printer and setup.
The hotend
Whether you should use an all-metal hotend or one with a
PTFE liner is up to you, I would contact the
e3d-online.com 61 support to ask them about this. e3d
produces both all-metal and non-all-metal hotends so they
should know, which one works better.
The hotend should reach 240-250C safely, to ensure, that
all Nylon versions can be printed.
I would always go with e3d hotends, ive heard many great
things about them and got a dual extrusion hotend by e3d,
which works perfect (not tested with Nylon yet).
You have to dry most Nylons before printing, check out
taulman3d.com 52 and google seach to find out informations
about this.
Most printers have no problem printing Nylon, so it mostly
depends on your price range. I would recommend the
Lulzbot, Ultimaker, Leapfrog or BigBox 3d printers.
As soon as you can limit your search to a few printers it
would be easier to tell, which one is better or worse for
Nylon printing, but there are too less general rules to
select the best Nylon printer.
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