Prusa i3 Build Manual
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Boxed style Frame Style
In the future this page might contain a tutorial until then a tutorial for the boxed frame style prusa i3 by Kliment:
http://78.47.92.212/i3_documentation_pics/
http://koti.kapsi.fi/~kliment/photos/i3/
http://koti.kapsi.fi/~kliment/photos/prusa3/
http://www.flickr.com/photos/prusajr/8127635345/in/photostream
Single Sheet Frame Style
http://www.flickr.com/photos/prusajr/8107645350/in/photostream
There is no tutorial for the Single Sheet Frame style Prusa i3 however the X axis, X cariage and Y frame and bed are mostly the same.
Github
https://github.com/josefprusa/Prusa3 - Josef Prusa - main development repo.
https://github.com/alexrj/Prusa3/tree/i3-unterwelt - Sound MINI repo
https://github.com/EiNSTeiN-/Prusa3/ - EiNSTeiN - 608 bearings, compact dual extruder repo.
Build Documentation
http://78.47.92.212/i3_documentation_pics/
BOM
http://www.ethercalc.org/wcrkzrngtw
Build Videos
http://www.youtube.com/watch?v=NixSNAUPciQ
Rod Lengths
http://titanpad.com/bU77NESnMC
JBFromOZ - notes preparing to build an aluminium frame prusa i3.
Prusa i1/i2 smooth rod lengths should be usable for an i3 single-plate reprap.
Instructions on the github say to RP each part in the single-plate folder. I believe this instruction applies to the box frame version only, some items need more than 1 copy.
It is not yet 100% clear which extruder to use, there is a dual extruder and a compact extruder in the branch though neither looks complete. there is also a Greg's adapter in the /mini/extruder/greg-wade folder, it uses the nuts_and_bolts.scad which needs to be copied to the openscad library folder.
I am planning to use a MGS extruder with a Nema17 stepper, designs from Sound are shown from his i3-unterwelt branch
Build photos from EiNSTieN's build record, including some additional reference to his edits for 608 bearings, GT2 belts, dual extruders etc.
Y PCB Aluminium frame is connected to LM8UU's with zipties, no RP parts required (as per nateplate style attachment)
Description | Qty | Image |
RP Parts | located in Prusa/single_plate folder | |
z-axis-top.scad | 1 | |
z-axis-bottom.scad | 1 | |
y-motor.scad | 1 | |
y-idler.scad | 1 | |
y-corners.scad | 4 | |
y-belt-holder.scad | 1 | |
x-end-motor.scad | 1 | |
x-end-idler.scad | 1 | |
x-carriage.scad | 1 | |
magnetic-holder.scad (used for hall effect sensors / endstops) | 2 | |
fan-mount.scad | 1 | |
belt-guide.scad (suit 623 bearing) | 4 | |
Extruder options | not complete documentation at this stage | |
gregs-wade.scad (in box_frame/extras folder) | 1 (???) | |
greg-adapter.scad (in mini/extruder/greg-wade folder) | 1 (???) | |
dual-extruder.scad (deprecated - experimental) | 1 (???) | |
compact-extruder.scad (experimental - likely to be replaced by nema17 extruder) | 1 (???) | |
EiNSTeiN branch | master branch of i3 single-frame parts by EiNSTeiN: master at https://github.com/EiNSTeiN-/Prusa3/ | |
platter.scad (EiNSTeiN variant) single plate for i3 | 1 | |
compact-extruder.scad (EiNSTeiN variant) dual extruder in build log images below | 1 | |
MGS Extruder T2.5 Belts | MGS branch of i3 single-frame parts bySound: i3-unterwelt at https://github.com/alexrj/Prusa3/tree/i3-unterwelt | |
mgs-body.stl | 1 | |
mgs-groovemount_ABS.stl | 1 | |
mgs-idler.stl | 1 | |
mgs-mount.stl | 1 | |
x-carriage.stl | 1 | |
Single-Frame i3 | Aluminium 6mm plate 370mm x 370mm | |
Prusa3ALU-FREZOVANY-v4.dxf | 1 |
Build by pictures.
Description | Image |
build Y assembly using 4 corners, Y motor mount, Y Idler mount, bearing rods, 8mm nuts washers. | |
Clean and de-burr aluminium 6mm plates., tap holes as required | |
Cable tie LM8UU's to Y carriage, and attach Y belt connection. | |
Attach Z mounts to Aluminium plate. | |
Attach Z steppers and smooth rods. Install LM8UUs into the X Carriage (not onto rods as pictured) | |
build X carriage and attach to ali plate | |
attach Y assembly to ali plate | |
attach and tension Y belt. | |
Attach and tension X belt. | |
Attach Heated Bed. | |
build extruder assembly (dual extruder based on EiNSTeiN's branch as per above in these pictures) | |
Attach Ramps (standoffs etc as shown) | |
Complete all wiring! | |
Attach Extruder | |
Dual Printers! | |
Dual Extrusion! |
Further specific details refer to wiring diagrams and other construction references on this wiki.
BOM
belt guide bearings x 2 some use 623's some use 624's the Ø4 holes can suit 624 but some modification or finding the right copy amongst the githubs listed above may be required at this stage
NEMA17 steppers x 5
J-Head MkV x 1
GT2 pulleys x 2
GT2 belts x 2
(Note that MGS files in Sound's i3-underwelt branch is stl's with T2.5 belts assumed)
clear tubing (z coupling) x 2
Z drives M5 (length) x 2