Lyman Filament Extruder: Difference between revisions

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Running:
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Revision as of 19:54, 1 December 2018

2018 - Simplified Version

File:Simplified Filament Extruder.fcstd

2018 - 3 More Builds

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2018

Running:

2017

See other FB posts on build prep - [1]

Source

  • Thingiverse v6 download - includes build manual - [2]
  • v5 download with manual - was RAMPS based with 150 kg-cm stepper. Ma

FreeCAD File

File:Filament Extruder Assembly.fcstd

File:LFW Master Assembly.fcstd

Working Document

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BOM

Extruder

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Spooler


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Master Index

Extruder Index

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Spooler Index

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Assembly Index

Part Library

Lyman Filament Extruder Part Library


About

http://www.shapeways.com/blog/archives/1973-the-lyman-filament-extruder-may-drop-the-cost-of-desktop-3d-printing-forever.html

Communications

Marcin,

Your work appears to be very interesting.

I don't visualize my being involved in your workshop as I am now 87 years old living in Enumclaw, Washington.

My latest Filament Extruder, Version 6 is the only extruder I am now supporting. It is my favorite extruder and all my filament is now produced with the three I have made. It extrudes 3mm (2.65mm) filament at about 1/2 lb/hour with the gear motor running at 25 rpm. The motor is rated for 33 rpm but under load it only goes about 25. . A faster gear motor with about 100 kg-cm of torque may give 1 lb/hr. I get a filament that varies not more than .05mm with the extruder wall mounted.

This extruder is posted on Thingiverse and is open source CC share alike. The posting includes a BOM. Also there is a video on YouTube.

Hugh Lyman

Technical

  • Uses 173 kg-cm torque motor (150 lb in) , but a 10 lb-in stepper (2 nema 17, 80 oz-in motors) reduced 10x may be sufficient (so still can use small, cheap steppers, no more than $20 in stepper motor costs. Advantage is that we are introducing no new parts to the GVCS, as steppers are already used.

Video


Links

HintLightbulb.png Hint: Build PDFs for Extruder v6 and Spooler v3 from Hugh Lyman is in the zipped folder, inside the Files folder

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