Extrusion v3

Status : discontinued / abandoned (wait for v4)

Efficiency : 4 out of 5 stars

Design : 2.5 out of 5 stars

Safety : 3 out of 5 stars

Price / Value – Bazar : 3 out of 5 stars

Power consumption : 2-4 Kw (1Kw for heatbands, 1-3 Kw for the motor)

Mass : 30 – 50 Kg

Capacity : unknown

Build – time for beginners : 3 days

Build – time for experts : 1-2 days


Required machines : drill press, stick welder, power tools

Recommended machines : lathe , CNC , MIG welder, bench grinder, angle grinder


Material bill : 400 – 1000 Euro

Bazar price : ~1000 – 2000 Euro

Variants / Community versions & hacks

Issues

  • need industrial screw to create quality
  • doesn’t create filament as advertised, even with industrial screw it is a difficult process and needs lots of extra equipment. please check the dossier on the subject
  • needs stronger motor than initially proposed, we recommend ~1.5 Kw at 1:30 – 1:50
  • improper welding of the structure may brake the screw mount

Components / Sources

Electronics

Europe – Spain

Cheap heatbands (may last up to 3 weeks)

Expensive heatbands 

SSR, PID, Thermocouple (come often as bundle)

VFD (Variable Frequency Drive, enables to run 3 phase motors on single phase)

Switches

Please check out the forum on the subject

Motor

we recommend a 3 phase motor with at least 800 watt, as well a 1:30 – 1:50 reducer. Here is a one which works well. 

 

 

Buyer guide – Bazaar

  • make sure you have a speed regulator
  • if you see high prices like 1500 Euro and more, make sure it has good heat bands (most use 5 Euro heat-bands) and an ‘industrial screw’ as well heat insulation around the barrel
  • make sure the motor has at least 800 Watt and a 1:20 – 1:50 reducer
  • technically, the machine doesn’t need a frame, desktop machines are fine
  • make sure it is done solid, anything in wood won’t work

Alternatives

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