As both Bittle and Lego are often used in STEM education, I designed a 3D-printable back cover that is compatible with Lego bricks! https://www.printables.com/model/795047-petoi-bittle-lego-cover Wouldn't it be cool to have this as an official accessory? Lego's patent expired some years ago, it opens up so many possibilities.
I have updated the model.I think the residue was not from the support, but either the seams or the bottom layer of the pegs sagging. I did 20 small test prints, and cutting even a single layer from the bottom makes the pegs too loose to fit Lego. Making the bottom partially straight also makes the overhang sag worse. But, I have found solutions.
To prevent seams in the pegs, I have made the bottom of the pegs more pointy, to ensure that the bottom layer of each peg starts with a double line. A single line creates seams.
I moved the sideways pegs up a little to give the supports more space to form.
I tested for the best print settings (for PLA). The main takeaway is to set the top/bottom print speed to 3 mm/s to achieve perfect overhangs.
I reshaped the two clips more closely to the original cover.
One more thing I did is change the front and back pegs to a 3 x 2 pattern, I liked it better that way, it invites people to add their own Lego tail.and/or tail lights.
Nice!❤️❤️❤️
love it!!!
That's very cool. I'll test it tomorrow.
Would you mind if I added it to this collection with credit to this post?
You are also welcome to post on the OpenCat channel on Hackster.io for better exposure.