Hey Greg, thanks for the quick response. I am running another part over the weekend. Changes I made:
- Added a draft shield
- Using a raft at 19mm offset instead of a brim (do not have an elephant ear option)
- Reduced print speed from 30 mm/s to 25mm/s
- Turned print cooling off
Will report back next week on the results from the print.
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GregValiant 1,370
It needs elephant ears on the build plate, up high you will need a windscreen or something. (My bad...I just noticed it's an Ultimaker).
I print mostly PETG. A couple of us here fooled around with some non-scientific testing.
This model is a shark fin for mounting on the roof of our car. It's an "old folks" aid for parking lots.
You will note that it has large break-away elephant ears to try to hold it down to the bed. You can see below that they were barely adequate. It was pulling hard. This was with hair spray as an adhesion promoter.
You also are getting warpage up high. That one I haven't been plagued with. If you get a draft from an air vent (when the air-condo or furnace cycle on) you can get something like that. The fact that it is "directional" is a clue. One side shrank faster than the other side did.
Here is the fancy shark fins for Sundays. I have to take them off at the car wash.
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