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I've been dialing in my printer and I have gotten rid of 90% of the issues I have been getting but these last ones have me beat. First of is the warping on the bottom layers. I have tried printing with the bed at 60 for the first then 50 for the rest and the last one (50 for the first and off after that. It looks temp related but changes don't seem to effect it.

The second problem is this weird bonding problem at the wheel house. I've included 2 separate models for this issue. Most succeed but look a bit worse at that stage while others like the 2nd fail. Its always at this point too.

Third is this really faint indent the runs in a diagonal S shape from the bow hole to the bottom. It almost some sort of mechanical error in the tracking but i cannot think of why that would go diagonally. Thought something like that would be in one direction.

For reference I'm using a Anet A2, Print temp is 190 for first and then 180. 1.5mm layer height and 35mm/s speed 25% speed for outside layers (I know its really slow, aiming to get the absolute best print quality and then speeding it up from there)