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Yes it is core deflection not run out

It is definitely core deflection. It deflects so much that it will make a hole in the side of the part. Wall thickness varies a lot around the circumference of the part, especially down towards the...

Thanks, i will try using a smaller nozzle and generate as much shear as i can with screw speed and smaller nozzle. Inj speed is at max. would a higher flow polypro help? currently we are using a 35...

Thanks for the info, our core pins are piloted into a button on the a-side of the mold. but it is still deflecting? the dia is 1/4 dia x 6" with a .060 wall thickness. Could this be a venting issue?

Hello Everyone,
looking for some advice from all you process wizards out there. i have a 16 cavity mold making 3" long pipettes. The mold is hot to cold and has 2 gates on each tip. Issue we are...