This review is from : Paper Clock Book With Pendulum
It really works! . The clock was fun to build and actually functioned - but it has some problems. Cutting the gears & wheels requires a precision that is difficult to achieve given the width of the printed lines. The internal "clutch" that drives the gears & allows rewinding of the strings worked perfectly for a while but then began to slip causing the weight to drop to the end of the string. Some suggestions:
* Expect to go through four or five blades.
* Elmer's Craftbond 1-Ounce Memory Glue Pen works very well for this.
* It's the + with four dots that indicates the use of a bearing.
* Use straight wire instead of trying to straighten paper clips for axles.
* Use a size 0 knitting needle for indicated axles.
* Prepare axles first and use them to poke holes in the various parts. Cut them a little longer han indicated.
* Poke holes in ALL pieces as indicated before gluing them to another and make sure you make the holes big enough to begin with. On the frame, alignment errors can be adjusted during assembly.
* Score and cut in the center of straight lines.
* Score and cut on the outside of the lines of circles, wheels and gears. You can trim wit small scissors later if needed.
* Don't curl piece 41. It's the internal clutch that drives the wheels. Just gently wrap it around and cover with piece 42.
* Align the teeth of the Motor Wheel very carefully when assembling it.
* Use glue sparingly on the wheels and gears to minimize warping.
* Always weigh down gears/wheels while glue drys and make sure you wait until it's really dry.
* You can use BBs in the weight.
* Use a thin or narrow rubber band.
* Use thin (but strong) string.
* Be patient! Take your time.
* Have fun!!
It really works! . The clock was fun to build and actually functioned - but it has some problems. Cutting the gears & wheels requires a precision that is difficult to achieve given the width of the printed lines. The internal "clutch" that drives the gears & allows rewinding of the strings worked perfectly for a while but then began to slip causing the weight to drop to the end of the string. Some suggestions:
* Expect to go through four or five blades.
* Elmer's Craftbond 1-Ounce Memory Glue Pen works very well for this.
* It's the + with four dots that indicates the use of a bearing.
* Use straight wire instead of trying to straighten paper clips for axles.
* Use a size 0 knitting needle for indicated axles.
* Prepare axles first and use them to poke holes in the various parts. Cut them a little longer han indicated.
* Poke holes in ALL pieces as indicated before gluing them to another and make sure you make the holes big enough to begin with. On the frame, alignment errors can be adjusted during assembly.
* Score and cut in the center of straight lines.
* Score and cut on the outside of the lines of circles, wheels and gears. You can trim wit small scissors later if needed.
* Don't curl piece 41. It's the internal clutch that drives the wheels. Just gently wrap it around and cover with piece 42.
* Align the teeth of the Motor Wheel very carefully when assembling it.
* Use glue sparingly on the wheels and gears to minimize warping.
* Always weigh down gears/wheels while glue drys and make sure you wait until it's really dry.
* You can use BBs in the weight.
* Use a thin or narrow rubber band.
* Use thin (but strong) string.
* Be patient! Take your time.
* Have fun!!
Cons Review
Patience Required . This book is really a wonderful gift. I have given it to quite a few
people over the years and they have enjoyed the novelty of the book whether or not they constructed the clock. The book on its own is quite
a convestaion piece. The introduction by the late Dr. Isaac Asimov is
very interesting, explaining the difficulty of devising a reliable
timepiece. It's too bad this is no longer available. If or when it's
published again you shouldn't hesitate to purchase this book. It's
fascinating just as a coffee table book, and would surely fill the bill
as a gift for the person who has everything. Who knows, if you give it
as a gift, the person might just call and ask you to drop by sometime
soon to admire the paper clock they made during a rainy weekend.
people over the years and they have enjoyed the novelty of the book whether or not they constructed the clock. The book on its own is quite
a convestaion piece. The introduction by the late Dr. Isaac Asimov is
very interesting, explaining the difficulty of devising a reliable
timepiece. It's too bad this is no longer available. If or when it's
published again you shouldn't hesitate to purchase this book. It's
fascinating just as a coffee table book, and would surely fill the bill
as a gift for the person who has everything. Who knows, if you give it
as a gift, the person might just call and ask you to drop by sometime
soon to admire the paper clock they made during a rainy weekend.
Product Details
MPN : 0060910666Brand : Harper Collins Publishers
Binding : Toy
Manufacturer : HarperCollins Publishers
Publisher : HarperCollins Publishers
SKU : 3009687
Studio : HarperCollins Publishers
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Where To Buy
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