Building a Large Format 3D Printer – Part 4: Printing

Part 4: Large format printing of chairs, tables, and stools. Files, Parts, and Info: https://www.drdflo.com/LF3DP.html Large Format Printer Playlist: https://youtube.com/playlist?list=PLZ9ac-f1U5V-FCBdhjv56bcvn9yc6JSfY D-Flo's Amazon Store: https://www.amazon.com/shop/dr.d-flo 📷 Follow Dr. D-Flo on the Gram: http://instagram.com/dr.dflo Resources: Venturi Effect: https://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