RepRap Extruders

Strategy

Select based on what Lulzbot and Prusa i3 Original use. Week time scale

• Select - By Monday
• BOM - by Tuesday
• Order - By Wed
• Test -Saturday
• Compatible with ramps, using existing RAMPS system

Tech Tree of Choices

Evaluated by:

• Open source
• Ramps compatible
• Simplicity + high performance
• Easy to source parts
• Easy to build (little to no cost for fabrication after parts are secured)
• Naturally low cost

• MK8 Extruder - $18 - [1]

Links

• RepRap extruder choices - [2]
• Instructables - [3]
• Pellets - [4]

Choices

• Mini J-Head - GPL - [5]
• Lulzbot, with Hexagon hot end - [6]
• J-head does polycarbonate - [7] - $13
• J-head .5 mm - [8]
• $35 j-head .5 mm prime - [9]
• MK8 Direct Drive Extruder Assembly - $35 - [10]
• Prime - j-head - $12 - [11]
• Universal extruder - http://www.thingiverse.com/thing:183982
• Compact 3 mm extruder - http://www.thingiverse.com/thing:375894
• Lucas - experimental - http://www.thingiverse.com/thing:378330

MK8 With Direct Drive?

• This says MK8 can do 3mm filament - [12]
• 3mm drive gear for MK8 - [13]
• Geetech on Amazon prime - 3mm? - [14]
• MK8 gear is strong enough to stall stepper motor - [15]
• Pros and cons of direct vs geared extruders - [16]