The solution most people use in situations like ours is optical endstops. However, good mechanical switches can be difficult to source and they are expensive. There are mechanical switches on the market that offer very accurate measurement and high repeatability. The tolerance in their break point is too large to be useful in that sort of application. Inexpensive mechanical switches aren’t suitable as touch probes. Those points in space set by the endstops are the foundation for all the calculations that determine how far each of the connecting rods needs to move in order to place the printhead in its desired location. One of the biggest challenges in getting a delta printer calibrated and printing well has been finding and setting accurate and repeatable endstop points. There has been a great deal of advancement in 3D printers since then and delta-style printers seem to have fallen out of favor and have mostly been replaced by designs that use a Cartesian system. This printer is really good at printing vases and figurines, but the print quality can be improved with my Anycubic Kossel Linear Plus upgrades using inexpensive optical endstops. I purchased my Anycubic Kossel Linear Plus back in 2017 and it has been an excellent printer and served me well over the years.
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January 2023
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