What is a more adequate bookmark for a bookworm than a bookmark in the shape of a bookworm?

Yes, here you have it - the ultimate bookworm bookmark, printed with an 0.2mm nozzle in 0.06mm layer resolution.

The small nozzle allows a very fine and smooth surface structure and massive overhangs without quality issues. Even colour changes for fine details are not a problem with a 0.2mm nozzle.

You can print this bookworm with a 0.4mm nozzle, too. But the surface will not look so nice and you will have a very hard time to get the colour changes on the eyes without running into problems. I was not able to NOT destroy the print when trying to print the eyes in black. Take a look at the picture. It shows 0.2mm, 0.4mm with colour change to black and 0.4mm without colour change for the eyes. The the last case I simply painted the eyes with a black sharpie.

Print settings:

Make sure that your print bed is clean and grease-free. An unsufficient bed adhesion is in most cases not a problem of the print profile but a cleanliness issue. If you want you can use glue on your print bed but for PLA this should not be necessary. Just use the textured print plate and a bed temperature of 55-60°C.

Now slam-in your 0.2mm nozzle and use the 0.06mm fine settings. You do not need support, but a brim for the worm is recommended. For even more surface quality reduce the speed a little bit. The print will take ages nevertheless. The bookworm looks best if it is printed with a four-colour AMS system. But you can print the worm in one colour and paint it afterwards as well.

The model can be printed with a 0.4mm nozzle, too. The 0.12mm fine settings are good to go but a brim is recommended for the worm. I propose you use the same colour for the eyes as for the body. The surface quality will improve if you reduce the speed for the outer wall. 50mm/s is quite good.

Unfortunatelly a colour change for the eyes with a 0.4mm nozzle will destroy the print. You can give it a try, but I had no success with it. After a lot of testing with a 0.4mm nozzle I ended up with printing the eyes in the same colour as the body and it was fine. The eyes can easily be painted with a black sharpie afterwards.

I made print profiles for a 0.2mm and a 0.4mm nozzle. You can use these profiles for the A1, P1 and X1 printer series. The 0.2mm profile is prefered as it provides a significantly better print quality on the cost of printing time.

Assembly:

Just slide the lower half into the slot of the top half. Add a drip of glue if needed.

And now set this bookworm free into the wilderness of your book collection.

Disclaimer:
This work by blecheimer is licensed under CC-BY-NC-ND 4.0.
You are not allowed to copy this model to other 3D printing websites without my permission.