Bản sửa đổi "No Problem Puzzle Mods"

Andreas has released a wonderful set of puzzles that No Problem Puzzles offered to the public at https://www.printables.com/@AndreasR_29096/models 

However, some of the STL models have errors that make printing difficult. I've built several of the No Problem Puzzles and when I've found issues, I've made my own mods to the released STLs, I decided to offer just the mods that improve certain parts. The intent is not to circumvent the copyright which does not permit remixes, but to enhance the operation and printing of some of the pieces so that the user has a better experience. Hopefully this does not violate the spirit of No Problem Puzzle's wishes.

All mods here work with the original files released in the link above.

All mods were printed with 0.2mm layer height and 2 perimeters. Generally I use PLA, but have created models with PETG as well. Most parts work fine at 0.3mm layer height, but you will want certain detailed sections (such as dovetails) to be 0.2mm which you can do with variable layer height.

Squeezy: In this puzzle, the right, lower dovetail was undersized by about 20% which does not permit the 2 frame pieces to slide properly. One solution is just to break the part, but that is unnecessary. I fixed the bad dovetail and now the frame pieces will slide properly, whether using PLA or PETG. Update: V3 As I've worked with this puzzle, I realized it is a bit fiddly when you go to do the initial "squeeze". I extended the dovetail ends (see pic above) about 2.5mm and now it is a bit clearer when they should engage. I find this helps make the puzzle a bit more obvious when you have the correct solution. This STL is the CV3 mod.

UnMatchBox: The STL of the split box has a section that is much too thin to print reliably. And so the provided STL has a more reliable split. You may need to pry it apart with a screwdriver if using PETG. But this should allow you to open the box to insert it around the main box part. You can then glue the edges closed, or leave as is.

Sliding Doors: In this puzzle, because the top of the “door” is too thin, it is possible to twist a part free which is not in the intended solution. To fix this issue, I created a door with a much thicker top wall. I also had to modify the base to accept this door. While I modified the base, I also battered in the walls a bit to help with the friction fit of the doors. 

Garage Box: When closing door after inserting the final piece, it scrapes that piece. There should be a bevel on that piece's edge. These pieces permit the garage door to shut smoothly without scraping the paint. Mostly a more aesthetic final closing of the garage door. 

iBOX: After solving the puzzle, I could not retrieve the parts out of the box. One stuck and caused a road block. This modded box/lid features a dovetail and so the lid is removable which makes the puzzle infinitely easier to test and retrieve pieces. This works great on my printer and all parts will slide both in and out through the V-shapped opening at the top of the lid. I used matte PLA. Picture of the box is above. I printed the box at 0.3mm layer until the dovetail section then went 0.1mm with variable layer height. But printing it entirely at 0.2mm layer is fine. Lid should be 0.2mm layer height. Print the LID in the orientation given (widest part up).