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* Excellent print performance | * Excellent print performance | ||
The design utilizes plywood linking boards cut to a length that yields a desired printer radius when attached to the printed | The design utilizes plywood linking boards cut to a length that yields a desired printer radius when attached to the printed vertexes. This simplifies assembly while helping to assure that printer dimensions are fixed, stable and reasonably well known. It also improves flexibility as the print area in the x-y plane can be changed simply by replacing the boards with boards of a different length. The delta design is inherently simpler to assemble as compared to virtually all it's Cartesian counterparts; '''this design can easily be built within a day by one person having properly prepared parts.''' | ||
The design uses a | The design uses a 12v 5/6A power brick instead of the popular 12v power supplies having mains connections relatively exposed, posing a potential safety issue, particularly when children are present. The power supply is roughly equivalent to those found with many inkjet printers. | ||
As many printed parts are used in the design as are practical, including printed pulleys. This in large part drove the decision to use open T5 timing belts for the drive | As many printed parts are used in the design as are practical, including printed pulleys. This in large part drove the decision to use open T5 timing belts for the drive, which also makes the design more flexible as the length of the guide rods doesn't need to be based upon the length of an off-the-shelf continuous belt. | ||
Cost considerations drove decisions regarding everything from printer capabilities (as shown, prints PLA only*) to guide rod material and length (two six foot lengths of 8mm drill steel are required, producing no waste). A Melzi controller is used as it provides all the necessary features as well as SD card support and reasonable expansion options. The power supply is a fraction of the cost of that required for powering a heated bed. | Cost considerations drove decisions regarding everything from printer capabilities (as shown, prints PLA only*) to guide rod material and length (two six foot lengths of 8mm drill steel are required, producing no waste). A Melzi controller is used as it provides all the necessary features as well as SD card support and reasonable expansion options. The power supply is a fraction of the cost of that required for powering a heated bed. | ||