Twin Engine Solar Roller
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[edit] Description
The Twin Engine SolarRoller was built by Zach DeBorg. It is simply two FLED solar engines connected to two motors (more or less a FRED Photopopper) with to SysQuest Disks attached. Nonetheless it is an great example how simply and beatifull a BEAMbot can be. And how creatively techno scrap can be 'recycled'.
[edit] Construction
This image shows the construction of the Twin Engine Solar Roller:
You can of course use any other solar engine to power your incarnation. Not that the solar engine is attached using DIP pins. This makes it interchangeable between various bots. Very clever!
[edit] Part List
| Quantity | Part | Solarbotics Parts # | Notes |
|---|---|---|---|
| 2 | SyQuest Disc Platters | N/A | Dumpster diving, anyone? |
| 2 | 3v Solar Cells | #SC2433 | Any 3v cells, such as the 24mm x 33mm ones SB sells. |
| 2 | Gear Motor GM3 | #GM3 | These are 224:1 90-degree shaft motors |
| 2 | 2200uF caps | N/A | N/A |
| 2 | 4700uF caps | #CP4700uF | N/A |
| 2 | 2N3904 NPN transistors | #TR3904 | N/A |
| 2 | 2N3906 PNP transistors | #TR3906 | N/A |
| 2 | Flashing LEDs | #FLED | N/A |
| 2 | 2.2K-ohm resistors | #R2.2k | N/A |
| 2 | IC Socket pins | #SPin24 | These are on a 24-pin DIP that you pull off to use. |
| 1 | 1/2" piece of 1/4" tube | N/A | Used as a spacer between engines. |
| 1 | 1.5" screw | N/A | To fasten engines together (via hole on motor casings. You just need to find a screw that'll fit snuggly. |
| 1 | Round plastic piece | N/A | To be used as back stabilizing wheel. Zach got his from the same SyQuest disc. |
| N/A | Heat Shrink Tubing | N/A | Radio Shack has an assortment in various sizes. You'll want it all the way up to 2" dia. |
| 1 | Heavy Duty "Jumbo" Paper Clip | N/A | N/A |
| Spool(s) | Hook-up Wire | N/A | Use red and black to keep things colorful and polarity-coded. |
