Binary Burr
303.00
- Closed
- Postage
-
to United Kingdom
Standard
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- Quantity
| Bidder | Amount | Date |
|---|---|---|
| v****e (4 ) | 303.00 | 02/07/2015 11:56:04 |
| S****e (189 ) | 288.00 | 02/07/2015 11:56:04 |
| S****e (189 ) | 270.00 | 02/07/2015 11:38:48 |
| o****e (1 ) | 255.00 | 02/07/2015 11:38:48 |
| o****e (1 ) | 255.00 | 02/07/2015 10:47:21 |
| v****e (4 ) | 251.00 | 02/07/2015 10:47:21 |
| v****e (4 ) | 210.00 | 02/03/2015 15:56:30 |
| o****e (1 ) | 200.00 | 02/03/2015 15:56:30 |
| o****e (1 ) | 178.00 | 02/03/2015 14:58:39 |
| a****e (24 ) | 168.00 | 02/03/2015 14:58:39 |
| a****e (24 ) | 160.00 | 02/03/2015 14:32:30 |
| o****e (1 ) | 150.00 | 02/03/2015 14:32:30 |
| o****e (1 ) | 130.00 | 02/03/2015 12:23:10 |
| C****r (143 ) | 120.00 | 02/03/2015 12:23:10 |
| C****r (143 ) | 120.00 | 02/03/2015 10:14:17 |
| User | Price | Quantity | Date |
|---|---|---|---|
| v****e (4 ) | 303.00 | 1 | 02/08/2015 12:00:01 |
Description
"The Binary Burr is a burr that functions like a 6-ring version of the Chinese Rings. The puzzle consists of 21 pieces. One is equivalent to the ‘bar’ in a Chinese Rings puzzle, and six others are equivalent to the ‘rings’. The other 14 pieces in the puzzle construct a ‘cage’ or ‘box’ that holds the other pieces in place. The entire puzzle should perhaps be called a ‘boxed burr’, and might be more logically constructed with only a solid wooden cage, however Bill chose to dissect this outer shell into smaller burr-like pieces.
To disassemble the puzzle, the rings and bar must be manipulated until the bar is freed. After the bar is removed, then the rings can be removed one-at-a-time, and finally the remaining pieces come apart easily.
The number of moves required to remove the first piece is 85, which is approximately 2 * (2/3) * 2^6 or 85.3 . Each move of a ring on or off the bar in the Binary Burr requires two moves - a movement of the bar piece, and a movement of the ring piece."
Construction of this puzzle was tricky. The humidity in my workshop was fluctuating wildly, so I opened up the tolerances more than I usually do to make sure the final product wouldn't bind up or get stuck. The good news is that I was successful there - this puzzle should work in all humidity conditions. The bad news is that the puzzle turned out looser than I would have liked, having perhaps .035 inch cumulative tolerance variation. In practice this means that while the puzzle looks and functions fine, it's a little looser in the hands than my normal standards. I have subsequently discounted the price quite a bit from the $200 I had planned to charge.
Each puzzle is signed and dated; 39 copies made for sale. Ships assembled.
Specifications
- Designer
- Bill Cutler
- Craftsman / Manufacturer
- Eric Fuller
- Material
- cherry/walnut
- Unit of Measurement
- Inches
- Size
- 3.6x3.6x4.4
- Grade
- Excellent
- Cosmetic Issues
- none
- Function
- Loose
- Functional Issues
- -
- Repairs
- -
- Packaging
- -
- Documentation
- -
- Assembly
- -
- Smoke-free home
- -
Payments & Returns
- Payment Methods
- PayPal
Postage & Shipping
- Item Location
- W4 3LF, London, United Kingdom
- Ships To
- Worldwide
- Shipping Instructions
- -
- Returns Accepted
- No