![]() Do not downsize the hot end heater wires, they are oversized for safety reasons. See the cable lengths and count section for specific counts. Automation cable such as IGUS can be used, but the minimum bend radius of the cable needs to be verified as the typical bend radius for Voron cable chains is very small. For printers with an umbilical cord cabling setup (V0 Toolhead, Legacy), they might be overkill. But these advantages are most useful in printers that use cable chains. PTFE or Heluflon wires are a premium option as they have a thinner insulation and a lower friction coefficient, which increases bending capabilities and decreases wear. ![]() Check your cable loom before installing the chains. It is less prone to snagging on other wires or the walls inside the cable chain. Silicone insulation withstands heat and is more flexible which is good in high movement applications. Silicone wiring has been specified because it has a high strand count which means it has higher fatigue life. When assembling Microfit connectors, the male pins are inserted into the female housings and the female pins are inserted into the male housings.įor larger wires, such as heater cartridge wiring, heatshrink tubing is helpful. The thermistor can use a 2pin Microfit connector. Use a 3pin MLX connector (see the official sourcing guide) to allow your bed to be removable without disconnecting from the SSR directly. Adding Molex connectors to all stepper motors is useful. JST connectors are not available as mid-wire connectors so they must be mixed. The recommended MicroFit 3.0 connectors are specified for up to 5A and should be used for all connections to the stepper motors, hotend and limit switches The JST connectors are used for connections to the MCU board(s). If using an AC powered bed, be sure to ground the bed regardless of if the assembly manual specifies it or not.Don’t run your bed above 110☌, this reduces the lifespan of the adhesive holding it onto the build plate.Add a 115-125☌ thermal fuse to your bed heater as an additional safety measure Buy a quality SSR (see the official sourcing guide), cheap clones may overheat and fail closed causing a heater thermal runaway.Use at least 18 AWG (0.75 mm²) for mains AC wiring, even better would be 16 AWG (1.25 mm²) ![]()
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