Welcome! Log In Create A New Profile


Now why did that work?

Posted by Miertam 
Now why did that work?
August 09, 2014 05:28AM
Hello, I am new to 3D printing, I bought a Prusa Kit from 3D stuffmaker and spend a few days putting it together and calibrating it. For the first few days I had great prints with the PLA I ordered with the printer. Then the weather turned hot and I couldn't get anything to stick to the printbed. After much fighting tonight I finally was at the try anything stage and I taped a piece of card stock onto my printbed, and it worked!

Now what did that change that raising and lowering the printbed; running the temp up and down; checking and rechecking my calibration ect ect didn't? I am glad the voodoo worked, but I would be much happier knowing why it worked. Any thoughts

Thanks Mike
Re: Now why did that work?
August 09, 2014 10:01AM
Cardboard worked because it is very porous and allowed the plastic to "sink in".

The variations in room temp, humidity, airflow all effect how the print reacts. I began to notice a pattern as the seasons changed here. I live in Iowa (USA) and we can very between -20f to +100f during the year. I have had times where yesterday the printer worked great, and today it won’t stick or it warps or the layers don’t bond. The only thing that changed was the weather, so I started logging those differences and results to see if my theory was correct. Yep, it is ..

Windows open, more airflow, more warping.
A/C on- warping and won’t stick.

This is why people build the enclosures, to eliminate or at least better control those effects. I am working on my enclosure now; I figure it will pay for itself in time by not wasting print after print.
Re: Now why did that work?
August 10, 2014 03:18AM
Is there anything I should be worried about printing on cardboard? Say the fibers getting in the hotend? Because I must say this is working wonderfully.

Re: Now why did that work?
August 10, 2014 04:49AM
Say the fibers getting in the hotend?

You extruder is an _ex_truder, not a vaccumer :-)

Generation 7 Electronics Teacup Firmware RepRap DIY
Sorry, only registered users may post in this forum.

Click here to login