1,291
edits
no edit summary
No edit summary |
|||
| Line 1: | Line 1: | ||
In this | In this How-To you will learn how to print a 3d object on the RapMan 3D printer. The printing process can be roughly divided into three parts: | ||
== | # Design your 3D object | ||
# Convert your 3D object | |||
# Print your converted 3D object | |||
==Create your 3D File== | |||
===Design your 3d objects=== | |||
When designing objects for printing with a 3D printer you should keep a few things in mind. The following rules only apply to 3D printers working the same way as ours does. Other 3D printers might have other limitations. | |||
* You can't print overhangs steeper than 45 degrees without support material. Generally this is nothing to worry about though support material sometimes can be hard to be removed. | * You can't print overhangs steeper than 45 degrees without support material. Generally this is nothing to worry about though support material sometimes can be hard to be removed. | ||
* Thin solid walls must have a specific thickness, currently we are limited to 1mm, 2mm, 3mm... Any x.5mm will result in hollow walls. This is due to our extruder nozzle being 0.5mm in diameter. Above a certain thickness (I think 5mm) any value is possible, so 10.1mm walls will print just fine. | * Thin solid walls must have a specific thickness, currently we are limited to 1mm, 2mm, 3mm... Any x.5mm will result in hollow walls. This is due to our extruder nozzle being 0.5mm in diameter. Above a certain thickness (I think 5mm) any value is possible, so 10.1mm walls will print just fine. | ||
* When parts must fit into each other design with | * When parts must fit into each other, design with some tolerance. The value of ~0.5mm seems like a good choice | ||
===Choose your material=== | |||
[[File:RapMan_HowTo-filaments.jpg|right|thumb|Different filaments (ABS and PLA)]] | |||
Choosing the right material (also called filament) to print with is another important thing when designing your object. Different plastics have different properties that might influence your print and each plastic has its own conversion profile. There is a good overview of commonly used materials over at the [http://www.bitsfrombytes.com/wiki/index.php?title=Category:Filament BfB Wiki]. Our default material is [[Wikipedia:Polylactic acid|PLA]] and I recommend to stick with it. | |||
===Choose your design software=== | |||
You can use any 3D or CAD Software to design your objects. Due to the countless options you have here it's impossible to give a general recommendation. Nonetheless here are a few choices: | |||
* [http://sketchup.google.com/ Google Sketchup] is very popular and free of charge (Mac and Linux) | |||
* [http://www.blender.org/ Blender] another popular [[Wikipedia:Open Source|open source]] software (Windows, Mac and Linux) | |||
* [http://www.maxon.net/ Cinema 4d], [http://www.rhino3d.com/ Rhino 3D], [http://www.autodesk.com Autodesk software] (which is free for students) and many more. | |||
<br clear="all" /> | |||
==Convert your 3D File== | |||
Converting your 3D file means: | |||
# Export your object to [[Wikipedia:STL_(file_format)|.stl format]] | |||
# Convert your .stl file to a file our printer can read | |||
===Export the .stl file=== | |||
[[File:RapMan_HowTo-stl-meshlab.jpg|right|thumb|Stl file in Meshlab]] | |||
Exporting the .stl file is in most packages simply choosing File->Export from the menu and then selecting .stl. If your software doesn't offer this option please refer to its manual or search for help on google which probably will come up with the right solution. | |||
The only important thing you have to do is making sure that the file gets exported with 1 unit as 1mm! | |||
It's wise to use software like [http://netfabb.com/basic.php Netfabb] or [http://meshlab.sourceforge.net/ Meshlab] to check your exported .stl file for the correct size and errors and also do minor tweaks like rotating and scaling. | |||
<br clear="all" /> | <br clear="all" /> | ||
===Convert the .stl file=== | |||
Converting the .stl file means converting the three dimensional data into a format which the printer understands. We call this format [[Wikipedia:G-code|G-code]], which is a numerical file format containing all the movement and other control information for the printer. G-code is also used on a number of different machines like computer controlled milling machines or routers. Currently there are two software choices you have. | |||
# Skeinforge, a platform independent software solution | |||
# Axon, which basically is a nice looking interface for Skeinforge but Windows only and somewhat limited | |||
====Skeinforge==== | |||
Skeinforge is at the first sight a weird and scary software with lots of different buttons and input fields. On the upside Skeinforge runs on Windows, Mac and Linux which makes this software our tool of choice. Don't worry there's only a few thing you need to know to be able to export files correctly. | |||
First of all, go and [http://fabmetheus.crsndoo.com/ download Skeinforge] (Chose the newest package). Skeinforge comes in a .zip file which you have to extract first. | |||
Secondly download the profiles I specially prepared for our printer and materials [https://github.com/matthiasbreuer/RapMan-3.1-Profiles here]. When using PLA (which you probably will because it's awesome) these are all you need to get great prints on our printer. | |||
More to come, it will get interesting now. | |||
====Axon==== | |||
Axon is the official software distributed be Bits from Bytes. Even though Axon is easier to use, I do not recommend to use it since it is outdated. Axon 2 is being developed right now but I would still in any case recommend Skeinforge if you are using any of our standard PLA material. | |||
=== | For the fearless, you find Axon and Axon 2 both [http://3dpedia.3dsystems.com/display/BFBCustTechRes/Downloads+%28software%2C+profiles%2C+firmware+and+print+files%29 here]. The download site is a bit confusing and you'll have to click ''Login'' first which will log you in as a guest. | ||
[[File: | ==Printing your converted 3D object== | ||
===Before you print=== | |||
[[File:RapMan-rapman.jpg|right|thumb|The RapMan v3.1]] | |||
Before touching the printer make sure you have at least once read the manual and then contact [[User:Matthias.breuer|Matthias]]. A printed version of the manual is somewhere around the printer. Should it not be, go and [http://bitsfrombytes.com/sites/bitsfrombytes.com/files/downloads/D100238%20Operation%20Manual%203.1.zip download it] and read it thoroughly. | |||
Before printing you have to check the printer for parts that might have become loose during a previous print and also check that the filament spindle unrolls easily. | |||
<br clear="all" /> | <br clear="all" /> | ||
===Checking the printer and filament spindle=== | ===Checking the printer and filament spindle=== | ||
[[File:RapMan_HowTo-loose-screw-locations.jpg|right|thumb|Some locations where screws might loosen]] | [[File:RapMan_HowTo-loose-screw-locations.jpg|right|thumb|Some locations where screws might loosen]] | ||
| Line 38: | Line 60: | ||
<br clear="all" /> | <br clear="all" /> | ||
==Printing== | ===Printing=== | ||
[[File:RapMan_HowTo-rapman-printing.jpg|right|thumb|The RapMan printing]] | [[File:RapMan_HowTo-rapman-printing.jpg|right|thumb|The RapMan printing]] | ||
Printing is fairly easy. Copy the G-code file to the sd card, put it into the RapMan controller and power it on. Then select your file and run it. | Printing is fairly easy. Copy the G-code file to the sd card, put it into the RapMan controller and power it on. Then select your file and run it. | ||
<br clear="all" /> | <br clear="all" /> | ||
==After you print== | ===After you print=== | ||
[[File:RapMan_HowTo-printed-object.jpg|right|thumb|The printed object]] | [[File:RapMan_HowTo-printed-object.jpg|right|thumb|The printed object]] | ||
After your object is printed there are some steps you might want to do: | After your object is printed there are some steps you might want to do: | ||
| Line 49: | Line 71: | ||
* Remove the raft | * Remove the raft | ||
* Remove any excess filament | * Remove any excess filament | ||
* | * Re-drill holes | ||
Removing the raft shouldn't be too hard, use a sharp knife for this task. The extruder leaves some excess filament when it does hard turns or stops for a moment. The excess material creates visible seams on your object. The best way to remove them is to use a knife and cut off anything that's big and comes off easily. Anything else must be sanded. Use sandpaper or the band sander from the workshop. Holes in your object will not have the same exact diameter as in your 3d model. Use the stand drill to | Removing the raft shouldn't be too hard, use a sharp knife for this task. The extruder leaves some excess filament when it does hard turns or stops for a moment. The excess material creates visible seams on your object. The best way to remove them is to use a knife and cut off anything that's big and comes off easily. Anything else must be sanded. Use sandpaper or the band sander from the workshop. Holes in your object will not have the same exact diameter as in your 3d model. Use the stand drill to re-drill any holes that must have a specific diameter. When using a drill on plastic never use high rpm or else the plastic will melt and destroy your object and possibly the drill bit. | ||
[[Category:Craftraum]] | [[Category:Craftraum]] | ||