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Puzzling question about a puzzle project. TOO easy solution ;-(

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Forum topic by TopamaxSurvivor posted 07-30-2012 02:39 AM 829 views 1 time favorited 4 replies Add to Favorites Watch
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TopamaxSurvivor

15006 posts in 2396 days


07-30-2012 02:39 AM

Topic tags/keywords: question puzzle easy solution

I agree with Paul Pomerleau. This puzzle is not as easy as it looks to drill and assemble accurately! I wanted to try it ever since Juni’s original post.

I finally tried it and ended up making a jig for my drill press to get the holes drill accurately. I made the dowels as long as possible and the holes just a 1/16th inch over the 5/16” dowel size. It fits tight, but all one needs to do is shake it a little bit and it opens right up. No puzzle at all if you can just shake it a little and do not have to spin it to get the dowels back into their cavities.

Has anyone else ran into this easy solution?

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence


4 replies so far

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KnotCurser

1852 posts in 1789 days


#1 posted 07-30-2012 11:46 AM

TMax,

I had this same problem with the first couple of puzzles I made!

Here’s the two things I learned:

1) Use really long dowels – drill your holes to within a 1/4” of the outside and don’t skimp on the length of your pieces either. The dowels should go most of the way through the pieces and end at the very edge of the intersection.

If you take a look at my puzzle I posted, you can see the dowels in the 2nd pic. They are over an inch and a half long.

2) Cheat a little. ;-) I switched to using steel pins. They have a lot more weight to them and they slide really nicely.

Good luck! LMK if you need me to take pics of my puzzle, etc….... I’ll be glad to help out!

-bob

-- Robert Rhoades WoodWorks / Email: rrww@rhoadesclan.com / www.rhoadesclan.com

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Paul Pomerleau

287 posts in 1414 days


#2 posted 07-30-2012 12:45 PM

My first puzzle did this, I guess it was because the holes were not perfectly aligned and the dowels were not tapered to slide easily through the holes.
Even the second attempt, with all the measuring tools and alignment theories, it still wouldn’t lock properly.
Since I built my final one with the holes bored straight through and capped, it is so much smoother.
Now it takes very little tilt of the puzzle and you can hear the dowels sliding through.
I just tried what you suggested about shaking it a bit and I could not get mine to open that way.
Of all the people who tried mine, it may have opened once if things really got lucky and aligned properly.
But in all the other cases, I had to show them the solution because they just couldn’t get it open.
My dowels are only about 1” long, and using steel pins will probably be better since they would have more weight, but I think the most important part is to ensure the holes are perfectly lined up.
Good luck and keep us posted.

-- Close to Ottawa Ontario Canada

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TopamaxSurvivor

15006 posts in 2396 days


#3 posted 07-31-2012 12:19 AM

Thanks for the tips guys. My holes are perfect using teh jig I built. My pins are about 1 3/8” long, but they could be about 1/8 – 3/16” longer. I’ll try maxing them out.

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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TopamaxSurvivor

15006 posts in 2396 days


#4 posted 08-05-2012 04:41 AM

I maxed out the pin length. That solved the problem ;-)

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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