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Extruder for Planetary Gearbox (Modded Airtripper's)

by piit79, published

Extruder for Planetary Gearbox (Modded Airtripper's) by piit79 Nov 9, 2012

Description

This is a modification of Airtripper's Extruder for NEMA 17 stepper with a planetary gearbox (21 mm hole spacing)
2 tube attachment versions are available:
-- M4 nut
-- M5 Pneumatic push-fit adapter

Recent Comments

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Thanks! I can't remember the setting, I haven't got the printer connected up at the moment.

very nice!

how many steps/mm are using?

What motors is everyone using for these?

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Instructions

I printed in PLA with a 0.5mm nozzle, 0.2mm layer height, 100% fill.

You need:
-- 2x M3x6
-- 3x M3x25
-- 2x M3 nut
-- 2x M3 washer
-- 2x M3x45
-- 2x spring or piece of rubber diesel pipe (see Airtripper's original)
-- M4 nut or M5 pneumatic push-fit adapter

Please note, this version doesn't use a support bearing yet - I didn't have a small enough bearing to fit the narrower hole spacing and 8mm gearbox shaft. I will upload a revision soon.

Updated: added a version for M5 pneumatic push-fit adapter

Comments

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MarcoAntonini on Jul 16, 2013 said:

very nice!

how many steps/mm are using?

piit79 on Jul 18, 2013 said:

Thanks! I can't remember the setting, I haven't got the printer connected up at the moment.

goopyplastic on Dec 3, 2012 said:

What motors is everyone using for these?

sousoux on Nov 24, 2012 said:

Great. I added a couple of reinforcements between the back screw holes and also the side filament entry point since that broke on my airtripper. I don't think it needs the top bearing. The shaft isn't long enough on my motor anyway.

nargos on Nov 11, 2012 said:

Petr, many thanks. Would it be much work for you modding the airtripper/gearbox for using a pneufit (M5) instead of the M4 nut?

nargos

piit79 on Nov 11, 2012 said:

 Hi nargos, you're welcome. It should be very easy to modify the attachment for the pneufit adaptor. I might actually get some myself... So the adapter has M5 thread, yes?

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