Longer LK4 pro... 3d print stuck

[SpudMuffin]

Whenever I make a large part with a flat bottom, I nearly have to chisel the part off. I feel I am going to ruin the part or the machine. Any suggestions?

[Roberts_Clif]

Two
Start with the hot-end a fraction higher above build plate.
I use a Vinyl transfer paper tape on the build plate, Sure it sticks but with a little water the paper tape washes off quickly.

Sample image on black Chinese build surface

[LePaul]

Does the first layer have elephant's foot (first layer too squished)?

I use a PEI surface (WhamBam Bed Systems)...after the print cools, I just flex the spring steel surface and it pops off. A worthwhile upgrade in my opinion

[Roberts_Clif]

I may want to try one LePaul it has to be 270mm x220mm

[SpudMuffin]

Thanks, just ordered a PEI surface