Jump to content






Photo

3D Printer Build

Posted by TonyNo , 29 March 2013 · 1665 views

  • IMAG1243
  • IMAG1242
  • IMAG1241
  • IMAG1229
  • IMAG1227
  • IMAG1226
  • IMAG1225

I finally decided on a 3D printer design and I'm going with the Prusa i3. I was going to buy an existing kit, but, found that I could save ~$400 by sourcing everything myself. Let's see if that pans out. :lol: 
 
The i3 is essentially a combination of a Mendeland a Wallace. Of course, I start down this road and then find a design that I like better... The Graber.
 
All of the threaded rod that is used on most of these printers is a huge pain, not only cutting it to length and fixing the threads, but, threading the nuts on and tightening them down all while trying to keep everything aligned. I started drawing up a design that eliminated the rod, but, happened upon the Graber design which has already done that. Bravo, sir.
 




I've heard that the linear ball-bearings (LM8UU) that a lot of people use are noisy. Add this to the fact that they need regular lubrication, and I started looking at options.

 

There are two companies that I know of that make non-metallic bearings that use polymers instead of lube. Pacific Bearing (PBC) and Igus. They both have parts that are drop-in replacements, and their top-of-the line parts are just over $9 each (ten required for the i3). Igus has a version that is about half that price, so, I'll be testing those. ;)

  • Report

Baby steps... LOL FInally got the ceramic-coated shafting and non-metallic bearings...

 

IMAG1322a.jpg

 

The printed parts are a bit small on the hole sizes, so, I'm looking at options to make the rest of the shafting fit. These are PLA and I have heard that hot water may soften them to allow the shafts to go in better without drilling.

  • Report

September 2017

S M T W T F S
     12
3456789
10111213141516
17181920 21 2223
24252627282930

Recent Entries

Recent Comments