How do I make prints smooth in PETG?

How do I make prints smooth in PETG?

Option 2: Polishing Using a polishing compound is another great way to smooth PETG prints. In fact, a nice polish will enhance the effects of sanding and further eliminate layer lines from your print. Before beginning, ensure that your part has been adequately sanded with high grit sandpaper.

How do you get your first layer on PETG?

The trick to printing PETG is in your slicer set Z offset to 0.2mm and turn first layer speed and acceleration well down. I currently use 15mm/s speed and 300mm/s2 acceleration. The large Z offset is to make sure the nozzle does not tough the extruded filament as PETG is very sticky.

Can PETG be vapor smooth?

However, the chemical resistance of PETG also means that it cannot be smoothed by chemical means, such as the acetone vapor bath used for ABS. If you want to smooth your PETG print, you are going to have to take a back to basic approach. You can also smooth your PETG print using a heat gun.

Are there any problems with the first layer of PETG?

I’ve succeeded on 3 very small prints with PETG, but the first layers weren’t the best. For instance, when I printed a bench, none of the lettering in that layer was legible. The layers after that point look fine and the print quality has been good. I have the problem where it goes to print the perimeter.

Which is the best way to print a PETG first layer?

After more experimentation, I’ve found that the other major secret to getting a good PETG first layer (aside from increasing the thickness to 0.3 mm as above) is to print it very, VERY slowly and at a low temperature. I’m now printing my first layer at 220 degrees and 10 mm/s and it makes a big difference.

What happens when you use PETG filament in 3D printing?

Sometimes blobs of PETG filament will stick to the nozzle and then end up deposited on another part of the print where it’s not supposed to be. If this happens it will cool and harden, which can be a hazard for the nozzle the next time it moves into that space. The result is usually a layer shift, which can be detrimental to the print.

How do you change the temperature of PETG filament?

When changing from PETG filament to another filament, heat the hot end to at least PETG’s melting temperature or a little hotter. Once you feed the new filament in you can adjust the hot end temperature to match that filament’s melting temperature.