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RoboDLC

Flexi gator easy tail

by RoboDLC Nov 18, 2018
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I was about to remix to make a flexi (cross out alligator and insert crocodile) tail print flat and hey, you've already done it. Thankyou.

Thanks. Everyone seems to love this model - I just made it "zero post-processsing" with the flat tail.

I have no idea what is wrong. I tried to print it 8 times, every time I failed. The parts bends up and are ripped out the bed.

First layer adhesion is the most important thing.
Whether or not you heat your bed for PLA, "squeeze" that first layer down. Set the first layer height to be 90% of your regular layer. For example, if you are putting down .2mm layers, make the first layer 0.18mm. This pushes that layer down harder. If your first layer's lines do not touch, you are either under extruding or too far from the bed, zero your bed to find which one is at fault. Use a part fan too, that hardens the plastic quicker and can help reduce the curl.

If your are printing ABS, again, squeeze that first layer harder. Sometimes you need to print it a little hotter as well.

In both of the above cases, make sure that you print a skirt of at least two lines so you know that your nozzle is cleared and putting out maximum plastic.

If you are printing in PETG, squeezing the first layer doesn't always work. I actually raise the nozzle a little and put out a lot of extra plastic, that works well. In other words, if you are using a .2mm layer, make the first layer .25mm and your flow rate 120%.

The tail get thin on the end and will curl up if you don't have a good first layer.

DLC

In theory nothing you wrote is new to me. Maybe except 0.18mm of first layer. In practice it looks very different because I thought I have done everything right. It turns out that my new glass on bed is not straight. I level it but when I check more places it was too low or too high. I would never think that that may happen. I printed it with no problem now, I added a brim just in case and it is ok. Thank you.

Yeah, I get bitten by that every so often. Something just “changes” and I need to re-calibrate.