Improved Tetris Heart Puzzle Box

Make sure you check-out my other, grander remix here: Tetris Heart Puzzle 2.0.

Printing Note: I've only included the remixed box parts. Use the pieces and instructions from the original model.

Summary: I love the look of the Tetris Heart Puzzle by Suteren but had trouble with the box. Both times I printed the box was too tight coming together and ultimately ripped off the slots from the box top. Thanks to the posted Tinkercad link, I was able to do some quick modifications:

• Changed the groove/slot to be single-sided to increase strength and reduce impact from poor tolerance in printers.
• Cut the heart all the way through the top to avoid the need for supports. It will probably also look nice if the box is printed in a different color than the top.
• Added stops to the bottom of the box so the lid stays in place.

Remix my Remix: Here's my Tinkercad remix of the original, feel free to take it and run with it: https://www.tinkercad.com/things/fm8sFKTx8RR-improved-tetris-heart-puzzle

Further Improvements: I've made additional improvements in my ground-up remix here: Tetris Heart Puzzle 2.0. The improvements include: 

• Made all of the puzzle pieces actual Tetrominos. 
• Reduced to a single solution. There are many viable solutions for this puzzle, making it too easy.
• Improved the fit of the pieces. In this puzzle there's a bit too much room at the moment and they rattle around loudly.

Check it out!

Thanks: Regardless of the above, I really like the look of this puzzle and appreciate self-contained ones like this which avoid having the pieces strewn about my house by my many children. If you like it too, please go give the original a thumbs-up! https://www.printables.com/model/394202-tetris-heart-puzzle