Recommendations For Trouble With Larger Flat Pieces

1

I have been trying, with no success, printing larger flat pieces. One piece was a funnel for a Kitchen Aid mixer (from Makerworld), and the other is a shelf for my IR sauna (5.5 x 5.5 triangle). Each one came loose from the plate. Here are some of the conditions:

  1. Flashforge A5M w/ 0.4 nozzle
  2. HS PLA
  3. Smooth high temp plate
  4. Flashforge plate adhesive.

I learned in the beginning to load up the adhesive on the plate and keep the plate cleaned with alcohol. None of the smaller pieces I have printed have done this.

Any recommendations?

2

Did you use a brim or mouse ears???

A picture would help.

3

I am guessing you are getting lifting? Often it is the shape large areas will generate a lot of contraction forces. You can try:

A brim (large one 10mm+)

Printing at ½ or 1/4 speed for the most of the flat part.

Increase the bed and nozzle temp a bit for the first 3 layers

Increase squish

4

Thanks! What is a squish? I’ll also give the setting adjustments a try.

5

Squish is the z offset height of the first layers. It literally pushes more filament lower on the first layers. It will increase elephant foot but its a small trade off.