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3d Printing Rocket Raccoon



rocket_cropped.jpg

Ender 3 Pro .1 layer .6mm nozzle

Today at The Computer Dudes we printed a model of Rocket Raccoon from Guardians of the Galaxy.  The model printed wonderfully on our modded Creality Ender 3 Pro 3D printer.  All we had to do was click print.  However, it was not always such a simple task.  I will share with you some of the lessons learned about how to get a quality print.

First, some Technical Specifications:

Printer:  Ender 3 pro w/ Creality Glass Bed

Hatchbox PLA 1.75mm various colors

Bed temp 65C Extruder temp 205C

.1 layer height with .6mm nozzle .72mm line width

50mm/s print speed, 8 jerk and 300 acceleration

20% infill

sliced in cura 4.1.0 with raft and full supports

Now, the lessons learned.

1. All guide wheels should be TIGHT.  Make sure the cam bolts for the bed, extruder, x-axis, and hotend are all set where the guide wheels are snug in their v-grooves. Take your time with assembly and double-check all work.

2. The printer frame should be as square as possible.  All attachment bolts should be tight

3. The print bed needs to be as level as possible.  If you're using a glass bed, up the bed temp to 65C for excellent print adhesion.

4. Larger nozzle sizes need more heat and slower print speeds

5. The Ender 3 Pro stepper motors are not strong enough to toss the glass bed around with impunity... lower print acceleration to 250-300mm/s.

6. Drive belts should be TIGHT.  There are tensioners that can be printed for the Ender 3 Pro on thingiverse.com and they work very well.  The creator printed his in PETG but I was able to print in PLA with a .4 layer height and .8 nozzle and have sufficent strength for the part to do the job.

7. it's ok if your supports get stringy, really

8. A bedleveling model that prints thin squares saves a lot of frustration when trying to fine tune the bed level.

9. Be patient when the print completes.  Allow the bed to cool and the print will lift off with minimal effort.

I hope this information allows the reader to avoid some of the gremlins we chased here at The Computer Dudes.








This news item is from The Computer Dudes, Inc
https://thecomputerdudesinc.com/news/3d-printing-rocket-raccoon.html