Step 8: Wrapping it all Up

By now the kids should be  walking around proudly with their chimes in hand. Ask them what they will do with them now. What I've noticed with this project is that NONE are left behind.
This is my gauge for project success... if lots of projects are left behind i know that it is not working and the kids don't like it. Simple!

An instructables reader suggested this link...

Here is a marking rubric for the project. If you want to get all fancy its an example of criterion referenced assessment. Nice to know all the years in university are not going completely to waste... :-)
In our district we cannot mark in a subjective way. Projects have to be marked objectively which is really tough in our area. This marking sheet make it easier, hopefully. I also always give students the chance to fix or improve things and re-submit for a better mark.  This marking sheet gives the student a clear picture of what the grade looks like. A mark really should NOT be a surprise for a kid.

Chimes Marking Sheet

NAME:_________________________DIV:__________________MARK      /60







Tube Measuring

Tubes not cut to 3 different lengths. Holes not cut to spot determined by tube length. No resonance

Tubes cut to 3 lengths within 10% of specified sizes. Holes drilled all within 10% of specified

Tubes cut 3 sizes perfectly with 3 notes  listed on board. Holes drilled exactly as specified by tube length.

Top Cap and Sail

Cut roughly, topcap not round, holes missing or uneven, unfiled.

Holes evenly spaced on topcap, edges smooth but not perfect. Sail is smoothly cut and filed.

Holes perfectly spaced and smooth, edges filed. Topcap round and perfect. Sail exactly like drawing.


Pipes all over, sail touching pipes or more than 6” below. Striker missing a pipe.

Pipes even at top edge but not perfect.

Sail within spec. knots tied off but rough.

Pipes exactly the same distance from topcap. Striker positioned in average middle of pipes. Sail exactly 3-5” Knots tied off and trimmed perfectly.


<p>HI to anyone who has asked questions about this project. Sorry for the long reply but i am teaching for the year in Rwanda, East Africa and web access is a bit slow. I will try to answer some questions...</p><p>i have used steel and copper but have seen PVC pipes used</p><p>The windway is created by the gap caused by the slot in the inside tube being sandwiched between the outside sleeve and inside plug.</p><p>the notes were suggested to me from a guitar teacher who uses the notes in chord ( I think) </p><p>The pipe and node positions are fond using math. i found them online at one point and have been using them since.</p><p>Have fun!</p><p>-Stu</p>
<p>The Yahoo windchime group is defunct. For great information on all aspects of building and understanding the science behind them see: </p><p><a href="http://home.fuse.net/engineering/Chimes.htm" rel="nofollow">http://home.fuse.net/engineering/Chimes.htm</a></p><p>or </p><p><a href="https://sites.google.com/site/chuckchimes/" rel="nofollow">https://sites.google.com/site/chuckchimes/</a></p><p>Both great sites</p>
<p>I also meant to ask: How did you figure out what length of pipes gave you each specific note?</p>
<p>You mention asking the kids about what notes go nicely together. But assuming I know nothing about that... What notes DO go together and what is a good way to know this?</p>
Very impressive! IMHO, the best example in the Teacher Contest! <br><br>In addition to the objectives you lay out, it opens all kinds of inquiries for the students as to what is going on, from the type of metal, steel vrs. aluminum, what difference varying the diameters of tubing will make, tube wall thickness, even some physics (why the hanging point is important), why certain combinations of musical notes are pleasing, etc. <br><br>In my experience, some of the kids will invariably want to go way beyond the scope of this project on their own. If so, they may find the yahoo windchime group interesting:<br>http://groups.yahoo.com/group/windchimeconstruction/
THANKS! i really appreciate the great feedback! i'll add the yahoo group to the instructable if thats okay...<br>-stu
<p>Hmm it seems this group no longer exists. :(</p>
Excellent looking project, thanks for sharing it.<br><br>Do you use anything OTHER than steel?<br><br>Brass, Copper, Aluminium etc might sound different, but may not work at all, what do you think?
stumitch, glad to see you are suspending the pipes at a node point. It is also a good idea to suspend the pipes in a way that the suspension strings cannot touch the upper ends of the pipes above the support hole. If the string touches, it will damp the sound. You also get a more pure and longlasting tone if you suspend the pipes such that each will be struck by the clapper at its lengthwise midpoint. That will mean that the tops of the pipes will be at different heights. The pipe vibrates microscopically into the shape of a parenthesis, back and forth, and hitting in the middle maximizes the transfer of energy to the pipe.<br>Unclesam
Excellent points! I'll use the idea of how it vibrates and change it so the kids will need to organize the pipes so they all hit in the middle!<br>thanks for the comments!<br>-stu
This is music to my ears :-) I have been using one that I made for several years now. I hung mine off a CD and hung an old shiny hard disk platter in the middle to catch the wind (the sail). The pipes I got from the roof from an old broken TV antenna.
The old CD idea is great! i think i've seen some instructables that show good methods for cutting CD's... that would make an excellent addition to shape the sail, recycle and have the color of the CD. good idea! thanks!<br>-stu
WOW! This is a great project for Grade 6. The more advanced students could be taken to the next level and construct a Westminister Door Chime set controlled via Arduino chipset.
YA! i still need to get into Arduino (picaxe guy) but that would be really cool.
I just got into Arduino myself with no prior knowledge and very little help. It took me 9 months off and on to get a handle on it. They are very interesting controllers that can control anything and I mean anything.
Beautifully documented. Thank you.
Very well documented. As usual :) . It is nice to see your 100% featured rating.
thanks! its a perfect project for grade 6 metalworking kids.

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Bio: Car buff, longboard builder and shop teacher. not enough time to build stuff.
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