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Success with Printing on PEI Build Tape
Article: November 2017

Success with Printing on PEI Build Tape

PEI is an incresignly popular print surface for many reasons. It's relatively maintenenace free, very long lasting and durable, as well as leaving a surface finish much like glass.

What materiels can I print on PEI?

PLA and ABS both adhere to PEI well, with PLA needing a very clean surface and ABS being more forgiving. PETG can adhere too well, as PEI and PET are in the same family of plastics. Removing parts while the bed is still hot can help negate this, but some glue-stick is a better option to avoid damaging the surface. Nylon adhered well with PVA gluestick, as does Polycarbonate.

What bed temperautres should I be using?

The standard temps that you've been using will work with PEI. From our experiance these are:

Refreshing your PEI sheet

So long as you're not touching the bed directly you'll get quite a number of prints without having to do anything to the surface. If you start to lose adhesion it can be easily cleaned with isopropyl alcohol, and any prints that have a very small footprint can be helped out with PVA glue. PVA and Glue Stick residue can be removed with a water damped paper towel.

In the long term you might find that cleaning with isopropyl will no longer be enough. When you get this this stage you can refresh the surface to like new by heating the bed up to 100 degrees, turning off and unplugging the printer, and then laying a damp (not dripping) towel over the bed for 5 minutes before wiping down with isoproyl. If you use this method, make sure that before turning your printer back on that everything is dry as a bone. You won't want to short out your bed!

If this doesn't work then rubbing it lightily with some fine-grit sandpaper (1500+) and then giving it another wipe with isoproyl and you'll have a like new print surface! When you can no longer sand down the sheet it's time to replace it, but that'll be years away.

Cutting your PEI sheet to size

PEI can be easily cut by scoring it with a hobby knife. We recommend against using scissors or a paper cutter as the thicker sheets can be quite stiff.

Attaching your PEI sheet

PEI sheets come in 2 flavours, self-adhesive and adhesive supplied sepeartely. The method of affixing them is generally the same. First remove your old bed surface and give it a very good clean with isopropyl or acetone to remove any dust, old adhesive and oil. If you have a self-adhesive PEI sheet put down one side and carefully apply it using a soft scraper to ensure no air bubbles are trapped. If you have a 2 part package, remove the tape off one side of the adhesive and apply that as described above. Remove the upper tape and lay down the PEI sheet using the same method.

Where to get PEI Build Tape

Bilby3D has a range of PEI tape and build plates with PEI surfaces. Find them here: Find PEI


Nylon PA Printed on PEI Bed Tape
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Bilby 3D Pty. Ltd. Phone 1800-Three-D (1800-847-333) or +61 2 8197 3928

Australian Owned & Operated Distributors of Desktop 3D Printers, 3D Scanners, Tools & Parts

Sydney: Unit 7, Kingsgrove Business Centre, 192 Kingsgrove Rd, Kingsgrove, NSW 2208

Melbourne: Factory A5, HallMarc Business Park, 2A Westall Rd, Clayton, VIC 3168

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