Having trouble sticking to bed  

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rbdopp
(@rbdopp)
Active Member

Dear Forum,

When I print one item (using ABS-T), it prints well with good adhesion just by cleaning well with isopropanol.  But if I then copy that item into six identical items, one or more do not adhere and they all then just ball up in a mess.  I tried the KORES “adhesive” and it made it muchworse. (how do I remove that stuff?). 

How can I increase the adhesion to the bed? 

Thanks for your responses.

Bob

Posted : 08/10/2019 2:26 am
rbdopp
(@rbdopp)
Active Member

I may have resolved it.  The Z was set to -625, so i set it to -600 and it seems to be working.  This learning curve is steep.  But fun.  

Posted : 08/10/2019 3:53 am
rbdopp
(@rbdopp)
Active Member

Wish i could delete the previous entry.  My printing for 2 hours in and then one of the segments broke off the plate!  Disaster.  The cross-section of my first thread is VERY flat.  I see in the Prusa video their plant with many machines running powder-coated plates with multiple images... and they do not have the adhesions problem.  I can not get ANYTHING to stick to my powder coated plate.  Nothing!  What am i missing here?  

Help!  

Posted : 08/10/2019 5:02 am
arduino_mel
(@arduino_mel)
New Member

The only way I could get PLA to stick to the textured bed was with glue stick. On the other hand the textured bed works 100% perfect when I print with PETG...perhaps that's why PRUSA uses PETG on a textured bed for the MK3S parts, they can't get PLA to stick either...LOL

Posted : 10/10/2019 1:31 am
Rich3D
(@rich3d)
New Member

ABS is a pain to print with, but here are few things you need to do that will help.

  • Leveling your bed and calibrating your Z height
    • This is especially important when printing more than one item. Your bed might be level in the middle, but outside areas might fluctuate. You really should print a bed leveling set and try to pick the best "Z height setting" that will help the entire build surface
  • Consider An ABS Slurry to aid in adhesion
    • Some people I talk to who routinely print with ABS apply Acetone to a small amount of ABS that turns it into a liquidy ABS slurry, then apply this to the build surface
  • Hair Spray!
    • Simple, easy, and works for pretty much every printing material including Nylon. This is what I use and has been great for me.

For some detailed instructions on maximizing your first layer check out this article https://3dnewb.com/3d-printing-first-layer-problems/

 

Rich 3D
https://3dnewb.com...
Posted : 13/10/2019 11:24 pm
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