User:Matthew R Skorski/Notebook/Cellulose Summer 2014/2014/10/03
|Project name||Main project page|
Previous entry Next entry
Purpose: Create 25 g cast of TiO2 1% and try to create raftless dogbones.
Safety and Procedure: Normal large casting, see 6/18/14, but with 250 mL of acetone instead of 200.
Created a 25 g TiO2 cast
Mass % Mass TiO2 Mass ABS 1.0% 0.2506 g 24.751 g
Added 250 mL acetone to TiO2. Sonicated from 7:20 am to 7:25 am at 22°C to 24°C. Added ABS and sonicated from 7:25 am at 24°C to 3:40 pm at 39°C. The solution was smooth when poured into the pan, no flecks of ABS were noticed. Heated the pan at 80°C from 3:40 pm to 5:30 pm.
Recently it was discovered by Megan that the dogbones can be printed raftless. The Dogbone profile used will be modified in order to print the dogbones without a raft, saving material and time. A dogbone was attempted after each modification to see how the results affected the printing
Edits to Dogbone profile
The overall issue with printing the raftless dogbones is that the first layer keeps popping up and messing up the rest of the print. It was observed that the filament wouldn't even stick to the bed, it just stuck to the nozzle and clogged it up.
The cast made today came out smooth but with a small cluster of bubbles and a single ABS chunk.
Figure 1: 1% Cast, very smooth and homogeneous