Libro

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Libro

Release status: Experimental

Libro LinearDrive.JPG
Description A delta style reprap printer designed to be built at a public library.
License GPL
Author David Hartkop
Contributors
Based-on [[]]
Categories
CAD Models
External Link



Libro is a RepRap 3D printer designed to be created at public library makerspaces. Design emphasis is placed on 'foolproof' ease of assembly, minimal tool use, and short overall component print time. This development was originally begun as a makerspace program for the Pueblo City-County Library District by David Hartkop, PCCLD Technology Trainer.

The RepRap Libro is constructed partly from 3D printed parts and partly from low-cost commonly available hardware. The table below lists the objects to be 3D printed. All of these objects are available for download through Makerbot Thingiverse here: http://www.thingiverse.com/thing:1063222

There is a helpful layout guide image that can be downloaded an printed to help with the final assembly of the machine's legs. Download the Delta Layout Guide at this link: http://reprap.org/mediawiki/images/b/ba/RepRap_Libro_Delta_Layout_Guide.jpeg

A second set of the same object files is available on github, along with the modified Marlin firmware for the RepRap Libro: https://github.com/qbit/RepRapLibro

Part Name File Name (download from thingiverse or tinkercad) Print Time (min) Filament (g) # to Print Total Print Time (min) Total Filament (g)
Linear Bearings 150901_repraplibro_linearbearings1_4up 120 35 3 360 105
Carriage 151125_repraplibro_carriage 80 30 3 240 90
Extruder Hub 150908_repraplibro_extruderhub 85 30 1 85 30
Idler End 150908_repraplibro_idlerend 40 14 3 120 42
Motor End 150908_repraplibro_motorend_2up 81 27 3 243 81
Pulley Set 151116_repraplibro_pulleysset 6 3 3 18 9
Magnet Mount 150914_repraplibro_magnetmount8_4up 44 14 3 132 42
Small Spool Holder 150922_repraplibro_smspoolholder01 35 13 1 35 13
Standard Spool Holder 150922_repraplibro_spoolholder03 31 11 1 31 11
Magnet Angle Mounts 150926_repraplibro_magangmts_2up 20 7 3 60 21
Bowden Extruder 151105_repraplibro_bowdenextruder 128 43 1 128 43
Extruder Gears 151009_repraplibro_extrudergears 41 15 1 41 15







Print Settings: Three shells, 0.3 mm/layer, 15% infill, using raft & supports


Grand total print time: 25 hours





Grand total filament: 502 g


The following table is a comprehensive list of all of the additional supplies to procure in order to construct your RepRap Libro. Many of these items are available through home improvement hardware stores. A few specialty hardware items may need to be purchased online, such as the heated J-Head hotend for reprap printers. The Pueblo City-County Library District was able to construct a RepRap Libro for right around $300 in parts, and was able to 3-D print all of the parts in house using a Makerbot Replicator 2 and Makerbot Replicator Dual.


Part No. Part Description (enter as web search term!) Category For What steps: Step # Quantity
1 Super glue standard fast drying cyanoacrylate super glue Adhesives Connector rod Step 2.4 1
2 2-part epoxy glue tubes of J-B Weld type heavy duty hard-setting 2 part epoxy Adhesives Connector rod Step 2.4 1
3 hot melt glue sticks of hot melt glue for use with a glue gun to glue misc. parts Adhesives Wiring the machine Step 2.6 1
4 Stepper Motor Nema 17 Stepper Motor Bipolar 2A 84oz.in 48mm length, 4-lead Electronics Linear motion legs & extruder unit Steps 2.2, 2.3 4
5 microcontroller Arduino Mega 2560 board Electronics Wiring the machine Step 2.6 1
6 driver carrier board RAMPS shield for Arduino Electronics Wiring the machine Step 2.6 1
7 stepper driver module A4988 Stepper Driver Module Electronics Wiring the machine Step 2.6 4
8 lever microswitch DPST miniature microswitch with lever Electronics Wiring the machine Step 2.6 3
9 Thin hook-up wire 20 foot spool of 26 gage hook up wire, Yellow Electronics Wiring the machine Step 2.6 1
10 Thicker hook-up wire 6 feet of red & black wire pair, 20 gage Electronics Assembling & wiring the machine Steps 2.5, 2.6 1
11 DC Power supply 12volt DC filtered power supply rated 6 amps Electronics Wiring the machine Step 2.6 1
12 USB printer wire 8 foot long USB printer-connection type USB cable Electronics Assemble the machine Step 2.5 1
13 crimp connectors Dupont Jumper Wire Cable Female Pin Crimp Connector 2.54mm Electronics Wiring the machine Step 2.6 50
14 crimp sockets, 4 wire 2.54mm 1x4P Dupont Connector Housing, Female Electronics Wiring the machine Step 2.6 5
15 crimp sockets, 2 wire 2.54mm 1x2P Dupont Connector Housing, Female Electronics Wiring the machine Step 2.6 5
16 electrical box Raco 11.5-cu in 1-Gang Metal New Work Wall Electrical Box Hardware Linaer motion leg Step 2.3 6
17 electrical conduit 1/2” EMT, 10 ft section Hardware Linaer motion leg Step 2.3 2
18 conduit fitting 1/2” EMT connector, compression type Hardware Linaer motion leg Step 2.3 12
19 tension spring 3/8” x 1-15/32” x .035” extension spring Hardware Linaer motion leg Step 2.3 3
20 rubber feet misc self-adhesive rubber feet for bottom of machine Hardware Assembling the machine Step 2.5 6
21 glass build plate 8” x 10” rectangular glass, 12” diameter circular mirror Hardware Assembling the machine Step 2.5 1
22 ball bearing metric press fit bearing O.D 17mm x I.D. 6mm x 6mm thick Hardware Extruder unit Step 2.2 1
23 steel balls 1/2 inch steel ball bearings Hardware Connector Rod Step 2.3 12
24 hot end for 3D printer Assembled All Metal J-head Hotend with Cooling Fan for Bowden Extruder Reprap and tube for distance Hardware, specialty Center hub 2.1 1
25 brass extruder gear 3D printer Bowden extrusion gear, I.D. 5mm, O.D. 10mm Hardware, specialty Extruder unit Step 2.2 1
26 push-in fitting nylon tube male connector push-in fitting for tube O.D. 4mm Hardware, specialty Extruder unit Step 2.2 2
27 miniature ball bearings metric press fit bearing O.D 10mm x I.D 5mm x 4mm thick Hardware, specialty Extruder unit Step 2.2 2
28 spring - extruder tension miniature round wire compression springs, O.D. 6mm, Length 20mm Hardware, specialty Extruder unit Step 2.2 4
29 ball chain stainless ball chain laniards for dog tags (30 inches long each) Misc Linaer motion leg Step 2.3 6
30 wooden base/top 18” diameter pine wooden circle, 1-1/4” thick Misc Assembling the machine Step 2.5 2
31 magnet 1/2” diameter x 1/4” thick rare earth magnet, countersink hole Misc Center hub & linear motion legs Steps 2.1, 2.3 12
32 tube for extruder FEP plastic tube, O.D. 4mm, length 95cm Misc Extruder unit Step 2.2 1
33 machine grease tube of synthetic machine grease for metal tubing & bearings Misc Assemble the machine Step 2.5 1
34 sandpaper sheets of 200 grit sand paper for sanding metal tubing Misc Linear motion leg Step 2.3 4
35 Zip ties 6” zip ties Misc Wiring the machine Step 2.6 20
36 screw - motor mount M3 x 8mm long metric machine screw Nuts & bolts Linear motion legs & extruder unit Steps 2.2, 2.3 16
37 screw - clamps & misc #4 x 3/8 inch long pan head sheet metal screw Nuts & bolts Linear motion legs & machine assembly Steps 2.3, 2.5 50
38 screw - magnet mount #8-32 x 1/2 inch long machine screw Nuts & bolts Center hub & extruder unit & linear motion legs Steps 2.1, 2.3 20
39 screw - box mounting 2-1/2 inch deck screw Nuts & bolts Assembling the machine Step 2.5 12
40 screw - hotend mount #6-32 x 3/4 inch long machine screw Nuts & bolts Center hub Step 2.1 2
41 nut - hotend mount #6-32 zinc nuts Nuts & bolts Cente hub Step 2.1 2
42 nail - idler pulley 3/4” roofing nail, zinc coated, 1/8” diameter Nuts & bolts Linear motion leg Step 2.3 3
43 bolt - extruder shaft M5-0.80 x 45mm long hex cap bolt Nuts & bolts Extruder unit Step 2.2 1
44 nut - extruder shaft M5-0.80 nylon lock nut Nuts & bolts Extruder unit Step 2.2 1
45 washer - extruder shaft M5 flat zinc washer Nuts & bolts Extruder unit Step 2.2 4
46 setscrew - extruder M6 x 12mm long setscrew Nuts & bolts Extruder unit Step 2.2 1
47 screw - extrude tension M3-0.5 x 40mm metric machine screw Nuts & bolts Extruder unit Step 2.2 2
48 screw - extruder hinge M3-0.5 x 30mm metric machine screw Nuts & bolts Extruder unit Step 2.2 1
49 wingnuts - extruder tension M3 metric wing nuts Nuts & bolts Extruder unit Step 2.2 2
50 washer - extruder tension M3 miniature flat zinc washers Nuts & bolts Extruder unit Step 2.2 4
51 threaded rod 12 inch section of 1/4-20 allthread, steel zinc plated Nuts & bolts Connector rod Step 2.4 6
52 nuts - connector rod 1/4-20 zinc nuts Nuts & bolts Connector rod Step 2.3 12