Paris, France May 18 - 19, 2017

https://www.waset.org/conference/2017/05/paris/ICPPP
Paris, France

Paris, France May 18 - 19, 2017

VR sculpt; vase hack mode

https://www.youtube.com/watch?v=T16AldMuawo
VR sculpt

https://www.youtube.com/watch?v=HZSFoFYpBaA
vase hack mode

3d printed air conditioner by Haier

http://www.3ders.org/articles/20150313-haier-unveils-worlds-first-3d-printed-air-conditioner.html

filamet virtual foundry - brass copper bronze

http://www.3ders.org/articles/20150318-virtual-foundry-reveals-that-their-fdm-metal-filament-can-now-contain-up-to-metal.html

99.9 metal

Mar. 18, 2015 | By Alec

Even at 85% metal, the results look great.

DIY cheapest possible Prusa i3 MK2 clone

Building the cheapest possible Prusa i3 MK2

2017-02-23 tom

What is the cheapest possible, real 3D printer you can buy without making one compromise after the other? That’s the question we’re asking by building a Prusa i3 MK2-style 3D printer that comes with most of the important features of the original one from Josef Prusa and requires a bit more work for sourcing and building the machine, but most importantly, we’re going to build it only with the most affordable set of parts.

This page will serve as a hub for part lists and build guides as the project moves along! All build videos and the accompanying project videos have been organized into a neat playlist!

https://www.youtube.com/watch?v=oVWLpvekby0
part 1 Building the cheapest possible Prusa i3 MK2 clone: [01] Electronics and Extruder!

(takes 14hrs for someone who knows how to put a kit together vs ready to go checked unit) kit orig Prussia 600us, and 900us ready to go

This is an entirely from scratch project~ buy all the components yourself from China!  54.$ us approx, 

https://www.youtube.com/watch?v=J6_z0YMhYdM
part 2

part 3, 4, 5...

https://www.youtube.com/watch?v=-n9t4GOeF64
part 6 final printing

https://toms3d.org/dolly
Full parts list

https://toms3d.org/2017/02/23/building-cheapest-possible-prusa-i3-mk2/

Electronics and extruder

Each of these parts were picked for a reason – be it because they are better than the alternatives, or, as expected, simply cost less than anything else. You can find the full explanation and the accompanying video on its own page, but here are the lists of parts we’ve covered so far!

Electronics

Part	Function	Qty needed	Cheapest offer	Seen at
12V 20A power supply	Power supply	1	$14.79	Aliexpress
100K BTC with cable	Heated bed temperature sensor	1	$0.52	Aliexpress
A4988 driver	Stepper motor drivers	4	$0,73	Aliexpress
Arduino Mega 2560 clone	Mainboard	1	$7.13	Aliexpress
Mechanical endstop boards	Endstops	2	$0.34	Aliexpress
RAMPS 1.4	Mainboard	1	$3.69	Aliexpress
Reprap 14pcs wire set	Wiring	1	$3.05	Aliexpress
Reprap heated bed aluminum	Heated bed	1	$6.42	Aliexpress

Optional parts

Part	Function	Qty needed	Cheapest offer	Seen at
IEC socket	Power input	1	$1.17	Aliexpress
LCD Controller, character-based version	LCD and SD card reader	1	$7,49	Aliexpress
LCD Controller, graphical version	LCD and SD card reader	1	$9.49	Aliexpress
Rocker switch	Power switch	1	$0.99	Aliexpress

Extruder Assembly

Part	Function	Qty needed	Cheapest offer	Seen at
1.2mm Extruder springs (pack of 10)	Extruder springs	1	$0.96	Aliexpress
2x4mm bowden tube	Hotend-extruder liner	1	$0.80	Aliexpress
5V M8 inductive sensor	Z probe	1	$5.09	Aliexpress
50mm radial fan	Part cooling fan	1	$1.16	Aliexpress
625 bearing	Extruder idler bearing	1	$1.50 (10-pack)
E3D v6 Jhead with fan and thermistor	Hotend	1	$5.00	Aliexpress
Hobbed gear	Filament drive gear	1	$0.80	Aliexpress

Frame and motion

The frame is a fairly standard i3 type – you could go with  a kit or make it yourself. The cutting template is attached at the bottom of the page, a .dxf file for CNC routing or lasercutting can be found on Prusa’s github!

Frame and fasteners

The fasteners have been adapted to work with a thicker frame and to make use of the alternative components used in this build. If you don’t want to cut the frame yourself , you can also buy one!

Part	Function / note	Qty needed	Cheapest offer	Seen at
2.5x100mm zip ties		like, 100		Amazon
3D printed parts	Substitute the parts linked below for compatibility with the components listed here	1 set		Github
18mm or 3/4" plywood/OSB/...	Frame material	370x370mm	~$1.00
M3 fender washer (DIN9021)		30
M3 nut (DIN934)		42
M3 nyloc nut (DIN985)	Locknut, alternatively jam two regular nuts or use threadlock	4
M3 square nut slim (DIN562)		6
M3 washer (DIN125)		22
M3x10 cap-head screw (DIN912)		16
M3x18 cap-head screw (DIN912)		18
M3x20 cap-head screw (DIN912)		7
M3x30 cap-head screw (DIN912)		21
M3x40 cap-head screw (DIN912)		3
M5 nut (DIN934)		2
M5 threaded rod (DIN976)		1m
M8 nut (DIN934)	alternatively slim nuts for aesthetics	22
M8 threaded rod (DIN976)	cut to 4pcs of 205mm	1m
M8 washer (DIN125)		22
M10 fender washer (DIN9021)		4
M10 nut (DIN934)	alternatively slim nuts for aesthetics	14
M10 threaded rod (DIN976)	cut to 2pcs of 360mm	1m
M10 washer (DIN125)	Can be replaced by fender washers with new printed part	8
Optional: Thinner material (10mm or 3/8") for bed carriage	Bed frame material	225x225mm	~$1.00

Linear motion

What’s listed here is the way I’m building this printer, an even cheaper option would be to go with IGUS bushings and generic 8mm smooth rods!

Part	Function	Qty needed	Cheapest offer	Seen at
5x5mm flexible coupler	Z-axis coupler	2	$1.60	Aliexpress
8mm smooth rods, 320m, 330 or 350mm, 370mm	X, Y Z linear guide	2 each size	$26.98	Aliexpress
GT2-2M 6mm belt (often just called "GT2") (set with pulleys)	X, Y belt	2m	$0.52	Aliexpress
GT2-2M 16T idler pulley, 3mm bore	X, Y belt idlers	2	$2.48	Aliexpress
GT2-2M 16T pulleys, 5mm bore (set with belt)	X, Y belt pulleys	2	-
LM8UU bearings	X, Y, Z linear bearings	10	$5,70	Aliexpress
NEMA17 stepper motor	X, Y, Z (x2), E stepper motors	5	$41.00	Aliexpress

Printed parts

Most of the printed parts are the exact ones from the MK2, however you don’t need all of them and a few have been modified to make them work with the cheaper components. Where possible, they should still be compatible with the original parts.

To get them printed, try 3DHubs (I’ve got a few printers listed, too :-), a local FabLab or Makerspace or convince a friend to print them for you!

Standard parts

These are from PrusaResearch’s Github page

Part	Qty needed
Y-distance.stl	1
extruder-body.stl	1
extruder-cover.stl	1
extruder-idler.stl	print modified design
fan-nozzle.stl	1
x-carriage.stl	1
x-end-idler.stl	1
x-end-motor.stl	print modified design
y-belt-holder.stl	1
y-corners.stl	2 for 350mm Y smooth rods, 4 for 330mm Y smooth rods
y-idler.stl	1
y-motor.stl	print modified design
z-axis-bottom.stl	1
z-axis-top.stl	1

Modified parts

Also based on the original MK2 files, but modified for the parts suggested for this build. These parts are attached at the bottom of this page!

Part	Qty needed
Z-nut holdah x4.stl	4
extruder-idler (simplified) x1.STL	1
x-end-motor (new endstops) x1.stl	1
y-corners (open) x2.STL	2, for 350mm smooth rods 0, for 330mm smooth rods
y-motor (new endstops) x1.STL	1

Optional parts

With the standard and modified parts, you should be able to build a 3D printer capable of printing its own upgrades. The following parts are non-essential addons, like an LCD mount or bed probe protector. While these can be a starting point, there are plenty of alternative parts and upgrades available on Thingiverse and Youmagine!

Part	Qty needed
LCD-cable-clip.stl	A few
LCD-knob.stl	1
LCD_SupportA.stl	1
LCD_SupportB.stl	1
LCD_cover.stl	1
PINDA_protector.stl	1

Stay tuned as we move on with the build of the super-cheap Prusa i3 MK2. This page will get updated as progress is made!

Download Attachments

•  MK2 Dolly printed parts set 2017-03-17
  Complete set of printed parts (including individual parts listed below)
  File size: 4 MB Downloads: 506
•  Prusa i3 frame
  Easily printable Prusa i3 (MK2) frame. No brace. 370mm wide and tall (check your print scale!)
  File size: 451 KB Downloads: 3665
•  Alu frame dxf
  Originally made from 6mm aluminum, but also works for wooden frames. From: https://github.com/josefprusa/Prusa3-vanilla/blob/master/src/alu-frame.dxf , licensed GPL v3
  File size: 79 KB Downloads: 301
•  extruder-idler (simplified)
  Updated extruder idler design with printed bearing rod and integrated bearing shoulders. Fully featured replacement and usable with the Original MK2 design!
  File size: 403 KB Downloads: 2128
•  y-motor (new endstops)
  Original X-motor end with a mounting point for the PCB endstop
  File size: 158 KB Downloads: 1371
•  y-corners (open)
  Modified design to allow use of longer (350mm) smooth rods for the Y-axis. Use these corners in the rear of the machine and let the rods overhang.
  File size: 64 KB Downloads: 1202
•  x-end-motor (new endstops)
  Original X-motor end with a mounting point for the PCB endstop
  File size: 890 KB Downloads: 1265
•  Z-nut holdah x4
  M5 nut holder compatible with the original Prusa i3 MK2 parts.
  File size: 360 KB Downloads: 1002

Posted in BuildTagged buildlog, e3d, extruder, guides, Project, Prusa

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