Uploaded July 2026 | Updated September 2026, 2 weeks ago

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More about Extruder V7.2 on HomoFaciens:
homofaciens.de/s/077.htm


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More videos of the series:
V4.0 - Introduction: youtu.be/p1pDIGvAJ88
V4.0 - Test print: youtu.be/DLzkSgIq7pk
V4.1 - Build instructions: youtu.be/pbHlqTOP_p0
V4.1 - Auger screws: youtu.be/fBd1iY2C7xk
V5.0 - Prusa MK4, Part 1: youtu.be/EsSNRnuUvzQ
V5.1 - Prusa MK4, Part 2: youtu.be/vM5zKUpNvZU
V5.2 - Test print 3DBenchy: youtu.be/kd_pwguQhL4
V5.3 - Test print track link: youtu.be/otOWS1Fjhg0
V5.3 - Prusa MK4, Part 3: youtu.be/22qLsyxlw4Q
V5.3 - Prusa MK4, Part 4: youtu.be/7hRIOJnCwBk
V5.4 - Prusa MK4, Part 5: youtu.be/w0zZDjQjpR0
V5.5 - Prusa MK4, Part 6: youtu.be/gysnkSZZikw
V6.0 - Teflon insert: youtu.be/6quLhSa3ERo
V6.2 - Screw-offset: youtu.be/2bq2zu-obN0
V7.0 - Brass insert: youtu.be/4m1KIF2a_rI
V7.1 - Fully stainless steel: youtu.be/E4mUDcB8V3Q

Plastic recycling:
youtu.be/T1gpC7RCzsQ
youtu.be/sxoP7oGglN0
youtu.be/IutEYKVnzrM
youtu.be/KLu5Z8oOpWA


Table Of Contents:
00:00 Introduction
00:15 Extruder V7.2
01:14 Powder production
01:48 Close look at various materials
04:15 Average density
05:36 Compressibility
07:41 Decomposing
08:36 Material feed
09:33 Variations in extrusion rate
12:09 Entering the extruder
12:45 Flowabillity
13:59 Pellets are for large extruders
14:26 Test print pellets
16:06 Test print recycled PLA
17:01 Test print industrial PLA
18:29 Conclusion