Description:The 5-chip gridseed minder is a computing device that attempts to discover large complex hashes that meet the criteria for various digital currencies (such as LiteCoin). The miners are designed to work together in groups of 10-20. The goal of this contest is to design a modular mounting solution for each miner, that will (1) allow the miners to be easily joined together in a single structure, (2) permit future expansion by adding new modules, (3) protect the delicate heatsinks, (4) provide for efficient, aesthetic and safe routing of cables, and (5) provides for a power distribution bus that cannot be accidentally touched (safe). See criteria below.
Solutions may involve multiple parts/prints.
DETAILED MINER DIMENSIONS AND DESCRIPTION:
Each miner is basically a cylinder consisting of a: (1) a round heatsink (95mm diameter, 45mm height) on the bottom, and (2) a round fan on the top (95mm diameter at the widest point of the rims, 25mm height). For one mounting possibility, there is a 14mm wide indentation (2mm deep), around the circumference of the fan. The lower rim of the fan (before the indented area) is 4mm in height, and the top rim (before the indented area) is 1mm in height. There is a small slope (bevel) from each of the upper and lower rims to the indented area (note that I did not include the beveled area in the measurement of the 14mm width of the indentation). The fan is secured to the heatsink with four triangular mounting tabs that protrude 8mm (at the longest measured from the edge of the rim to the point of the triangle). Each "side" of the triangular mounting tab is 14mm in length. The angle between the legs of the mounting tabs is 90 degrees. Viewed from the top, therefore, the mounting tabs form the corners of an 80mm x 80mm square superimposed on the otherwise circular shape of the 95mm fan. Each miner requires two connections - a power wire and a USB wire. These connections are located together (about 45mm apart) on one side of the heatsink below one of the mounting tabs.
(A) A single module should be designed to secure at least one, or at most two, miner(s). Multiple modules must be capable of being joined together to form a structure.
(A) Basic design should form a stable, standalone structure with a minimum of 10 modules (10-20 miners per structure).
(B) The design should accommodate an internal, protected, location for 2 high amperage power distribution busses (one positive, one negative) like Blue Sea Systems 2312 or similar, in a location that is protected from accidental touching (kids, pets).
(C) Efficient, aesthetic and easily managed routing of power wires from each miner to the power distribution strips; and of each USB cable to a USB hub (may be external to design, but routing of cables is part of criteria).
(D) Ease of assembly (multiple parts/prints are okay and are probably required).
(E) The delicate heatsink fins should be protected once the modules are connected to form a structure.
(F) Airflow around the heatsinks should not be impeded.
Readily available non-printed parts (such as threaded rod to create clamps to hold the fans) may be used, but ideally most of the design should be printable.
DESIRABLE BUT NOT REQUIRED - ADDITIONAL CRITERIA
(i) Expansion should be possible by connecting additional mining modules and/or joining sets of mining modules, up to 20 modules per structure.
(ii) The structure would ideally also enclose a power supply that is 8" x 4" x 11"
Don't Wants:Pretty but difficult or non-functional designs. This is all about functionality. Aesthetics are secondary.
Designs that require laser cutting or larger than 175mm x 175mm printing.
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