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Chi-Ren Chen's Intrude2 puzzle

by richgain Mar 8, 2014
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05/2018 : Having failed to solve the puzzle, I put the picture of the spare parts, but the photo of the resolved puzzle will arrive soon ;)
04/2019 : After trying to solve it in vain a year ago, left it out for 6 months, tried again and left it out again for 6 months... I finally managed to solve it yesterday in barely 1 hour :) So, as promised, I added photo of the solved puzzle. "Patience brings all things about."

Thank you for these moments of reflection :)

print frame min 2% bigger got mine assembled now its locked due to tolerances
wasted 3.5hr printing

un tick auto uniform scaling when u do the 2% larger frame you dont want to scale the thickness of the frame just the
not the z height

Sorry to hear that. I couldn’t see a picture of your print so I can’t be sure but my suspicion is that your printer may be over-extruding. I say this because if the flow rate is even only 1% over, the parts will not fit together. I have spent hours tuning my printer to make sure that the parts measure exactly the right dimensions and my current extrusion multiplier value is 90% of the calculated E steps/mm value.


i know i have .3 run out on holes if i need 10mm hole i need 10.3 in my cad work
other then that im happy with the printer

using cura 2% more worked well

I've been working on it for over an hour now and can't seem to figure it out so far.

Yep, I said it was difficult! It's definitely possible though - I've done it twice but I had to use the solution both times.

I've downloaded Burrtools but even with that I can't seem to get it yet.

Download the .xmpuzzle file. Run Burr Tools. File/Load and select the .xmpuzzle file.
Click the Solver tab. Check the Disassemble box. Click Start.
Find the slider just under the Move label. Scroll right and left to disassemble the puzzle.
Can also use right and left arrow on the keyboard for fine control.
Click and drag on the puzzle to rotate it. Zoom in for a clearer view.
Let me know if that helps.

Thanks for the tips! I too got mine solved finally. I was so close on my own!

Rich: Thanks! I've never used burr tools before, but these instructions were very easy to follow, and now I can attach a picture of the assembled puzzle to my make :)