PEI Sheet for Bed Adhesion

**clough42** · 03-09-2015, 09:26 AM

Originally Posted by sniffle

it's definitely all about the Z height...

printed this all at once on the 12" nothing lifted though i did have to remove the PEI so i could flex it to remove the parts...

What are the white things on either side of the print bed?

Is that a chamber, or just a workbench surface?

**sniffle** · 03-09-2015, 10:40 AM

Originally Posted by clough42

What are the white things on either side of the print bed?

Is that a chamber, or just a workbench surface?

It is a cheap set of lights i got from costco for 20$ i have my octoprint setup to do timelapse, overhead lighting leaves a lot of shadows so i got the lights and put a paper towel over them to soften the light so it wouldnt wash out the picture.

i have it setup to broadcast over the internet so i can monitor it from anywhere

and yes i print inside an enclosure

**AbuMaia** · 03-09-2015, 01:20 PM

What is that part on the right of the bed, with the six circular brims?

**sniffle** · 03-09-2015, 03:22 PM

that would be the dual E3D cooling shroud :-)

**dunginhawk** · 03-21-2015, 09:17 AM

I just finished my 12" i3v last night, and ran first two test prints (good early results). Now ill attach my pei and let it roll.
So you are aware guys, the PEI (the one from amazon at least, not sure about MC) has 2 sides to it with different properties.
1 side is glossy, 1 is matte.
glossy works great for PEI without needing to sand, and the matte side is great for abs, but needs some fine grit sanding every 5 parts or so.

I have been using PEI for about 4 months with STUNNING results. So i plan on putting a glossy side glass piece on, and a matte.

REMEMBER - DO NOT use PEI with ninjaflex, it will literally not come off. It took me 45 minutes to peel off a 3 inch part..

BTW< i use pei with the 3m adhesive sheet. for the prusa, ill attach them to glass sheets.
thanks

**adamfilip** · 03-22-2015, 10:34 AM

i havent noticed a matte side. its all glossy. i havent sanded
printed dozens of times. i barely even clean it

**adamfilip** · 03-22-2015, 10:35 AM

Originally Posted by usarmyaircav

Hey Sniffle, it looks like you are using a brim, what size a brim are you using?

i find brims a pain to remove

**dunginhawk** · 03-22-2015, 11:54 AM

Originally Posted by adamfilip

i havent noticed a matte side. its all glossy. i havent sanded
printed dozens of times. i barely even clean it

Did you buy from amazon or another site> the one amazon sells definately has a matte and gloss side, each.... its a little hard to see if you arent looking for it.

thanks

**adamfilip** · 03-24-2015, 05:52 PM

ive recently had issues with adhesion
i ended up taping the PEi to my glass using Tessa Double sided tape
i have the PEI sheet a light sanding with a 300 grid sandpaper
im getting alot of lift at corners. not sure why
printing at 120 bed temp

**usarmyaircav** · 03-24-2015, 05:59 PM

I still get some lift, I think I need to build an enclosure. However when I use a brim I don't have lifting problems, just would prefer not to print with a brim. I sand mine with like 1,000 grit, and then wipe it down with rubbing alcohol. I print at 105 to 110 bed temp, been tempted to try higher but haven't yet.