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3DPrinting
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PLA can tolerate quite huge range od tems. Thats why this test is not best IMO. I found better to print single wall cube with no bottom and no top (also changing temp every 5 mm of height). That way you can see how it looks, but you can also test layer bond by breaking the part with fingers. It is also much faster print.
Just my 0.02
I agree with this, PLA is the most popular material for a reason. It's pretty easy to get good results without a lot of tuning.
Temp towers are a huge help with PETG though which has much more trouble with sagging overhangs and stringing. It took me a bit of practice to get results I was happy with for PETG.