I have been playing with my bukobot for a little while now and have found some filaments that work ok and some that work great.
I first got a couple of spools of JET PLA 3mm, I had a lot of problems at first but have recently increased the temp, and tuning my bukobot seems to have helped as well. The 2 big problems with this was sticking to the tape and skipping/sticking to the previous layers. Temp and diameter seems to have fixed this.
the other thing I noticed about this filament is that it is oval. 2.85~3.0, I set my diameter to 2.94 and that seems to work as well, printing these at 210 or 220 (glow in
the dark) now works everytime. I got these all from amazon.com.
I have gotten diamond age from printbl.com and it has all worked flawlessly.
I have also gotten some spools from makergeeks.com, The PLA is recieved printed great. I also got the exotic filament sample and everything in it printed well except I did not get the 618 nylon to stick to the painters tape. I just received a garulite sheet which I will cut and test with. and I have not printed with
so settings for me are
PLA first layer temp 190 other layers 190. my diameter is 2.85 I enable cooling and set the min time to 25 seconds.
eco FlexPLA first layer temp 220 other layers 220 my diameter is 2.85 and I set the extrusion multiplier to 1.1 it seems that the filament didn't stick to the
previous layer without this and I didn't want to fudge the measured diameter. enable cooling 25 seconds min layer time.
laysand first layer this all depends on how smooth you want the surface so it prints from 165 to 210, I didn't see as much differnce with the temp. I need to print more
PET first layer 210 other layers 210 diameter 2.75 cooling enable 25 seconds min layer time. I only printed with this once so far. I had a layer adhesion issue and I needed to do some other things and I haven't gotten back. The part that adhered was very nice.
Eco FlexPLA is a pliable filament that you can print flexible things like tires.
PET is a strong plastic.
laysand is a chalk based filament that prints like sandstone and can be smooth or rough depending on temp.
laywood is a wood based filament that prints differnet colors with differnet temps (higher makes it darker).
taulman 618 nylon is a nylon filament and has many uses. I know that Diego is printing some things with it. He may have better info on how to get it to stick.
Makergeeks ships for free and their prices are reasonable. I am not affiliated with them or any other supplier. They also have kapton tape in 8" widths that makes
it very easy to cover the glass. (use a little soapy water and once in place, heat the bed).
Well time to get back to playing with my toys. Hope this info helps.