About this 3D model

I have already designed shelf bracket and I would like to extend my design with shelf corner with hidden holder. I have used one of the beautiful color PETG :)I have started the to print from ABS, but I have faced problems. You can also watch in the attached video what were the problems. I have explained in this video on my mother language. To print the shelf I have used 0,6mm nozzle and the time was 4h and for the hidden holder 2h. With 0,4mm nozzle estimated time between 12h-16h.I have designed a rectangulare one if you prefer this one. ATTENTION:If you can and You would need a bigger one when you scale the shelf don't forget to scale the hidden holder as scaled as the shelf! Video: https://www.youtube.com/watch?v=CuwvWtjHzU4 For the hidden holder do not use support! Any support to me thank you:Paypal:https://www.paypal.me/PNkiSS You can visit to Facebook:https://www.facebook.com/projectNemann Website:http://projectnemann.com