Uploaded June 2022 | Updated September 2026, 2 weeks ago

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Part 4: Large format printing of chairs, tables, and stools.

Files, Parts, and Info: drdflo.com/LF3DP.html
Large Format Printer Playlist: youtube.com/playlist?list=PLZ9ac-f1U5V-FCBdhjv56bcvn9yc6JSfY
D-Flo's Amazon Store: amazon.com/shop/dr.d-flo

📷 Follow Dr. D-Flo on the Gram: instagram.com/dr.dflo

Resources:
Venturi Effect: makezine.com/projects/giovanni-venturi-venturi-effect

Video Description:
Part 4 of the Large Format 3D Printer series dives into printing large complex geometries. From a 18 kg (40 lbs) chair to a step stool with gyroid infill, Dr. D-Flo explores the capabilities of his pellet extruder and massive 4’ x 4’ x 4' build volume. However, these large prints come at a cost, and the amount of material ($$$) and power ($) per print are evaluated in this video.

To keep the hungry extruder fed with pellets, a Venturi vacuum-based pellet conveyance unit is installed to "blow" pellets from a bin to the extruder when needed. This system has worked flawlessly for over 100 hours, but there was one catastrophic failure that had to be overcome (stay tuned until the end to see this blooper).

This video also touches on the mechanical recycling of failed prints, but a future video will go into much more detail on turning plastics destined for the landfill into pellets for the large format printer 3D printer.

Table of Contents:
00:00 – Introduction
00:26 – Tying Up Loose Ends
04:28 – Pellet Conveyance
05:26 – Venturi Vacuum
07:20 – Compressed Air Supply
10:32 – Installing Conveyance Unit
13:23 – Printing a Chair
16:05 – Operating Costs
19:32 – Step Stool
21:37 – Infill
23:31 – Recycling Prints
24:48 – Blooper


#Massive #DIY #3DPrinter