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| Building a 3D Printer, RepRap Mendel Prusa2 by craynerd |
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| raynerd:
Peter, Lexan, that is the one! I like the idea of the idea of the carbon fibre sheet - is it pretty lightish (to be honest, lexan is fairly heavy!)? I expect it would be expensive, I`ll have to google it tonight and look for some when I get home... yes, I like that idea of carbon fibre. NickG - process is a little complex to get your head around at first. The printer uses a Arduino Mega as the processsor and then uses a firmware which is all free, either called Sprinter or Marlin. This is simply just an Arduino code that you programme to the Arduino over USB (all very easy). You then download a free piece of software called Pronterface/Printrun. This software communicated with the Arduino through the firmware and tells it how and what to run. Arduino Mega --> loaded with Sprinter/Marlin --> Pronterfaces connects to Arduino through Sprinter/Marlin firmware To actually make something, you need to create a 3D object in any CAD package like Solidworks OR the FREE Google Sketchup. Save/export the file as a STL. A 3D printer simply prints a layer at a time and keeps moving up and prints another layer. So you then have to slice the STL file/object into layers so it can print each layer and generate the G code. A FREE piece of software called Slic3r (slic3r.org) slices your object and outputs the G-code which you then load into pronterface. CAD Package e.g Sketchup create object --> export as STL -->slice STL using slic3r --> generates gcode --> load into pronterface. All dead simple once you get your head around the process and free!! Regarding the strength of the models - I was supprised how strong the plastic is as just a 30% infill. Make something at 70-100% infill and it is really tough! |
| NickG:
Cheers Chris, very clever stuff ... even my wife was impressed :bugeye:, will be showing Yoda to the boys later! |
| matnewsholme:
--- Quote from: craynerd on June 17, 2012, 05:08:04 PM ---Hi Matt No, it is a PITA!!! There are no clear instructions for the iteration 2 and the thing is, there are so many different parts that the instructions would change so frequently! The thing is, that when you look at the i2 Prusa, it says a positive as better documentation!!! --- End quote --- http://reprap.org/wiki/ABSPrusa Chris After a bit of digging found this set of build instructions. not perfect but at least they show single lower plate details. Cant do much now til parts start arriving. Matt Edit: Fixed link. Don |
| jgroom:
Aaaarrrg, hooked me too..... :proj: Where I'm at so far.... Waiting on delivery of drill rod, motors, and electronics. Then the fun begins. :dremel: Cheers Jeff |
| raynerd:
Haha, looking like this thread is hooking a few of you in!! If anyone wants parts sets, please let me know... |
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