Flesh out Hydra manual

[RagingRoosevelt]

Plan

In progress:

• rear vertical extrusion

To-Do:

• motor mounting brackets
• feet / skirt
• linear rails
• installing bed carriers & z-axis motors
• prepping and installing the heated bed
• cable chain
• wago & wiring

Done:

• right arm
• left arm
• rear arm

Current Copy

• Use 4 of M5x8 bolts, 4 of M5 roll in nuts, and extrusion corner brackets to attach the 555mm extrusion vertically between the top and bottom rear rails. Make sure it's centered side-to-side and make sure it's flush front and back.

• Use 4 of M5x10 bolts, 4 of M5 roll in nuts, and the rear center z-motor mount to bolt the bottom of the vertical extrusion into place, bolting into the vertical extrusion and into the lower rear horizontal extrusion. Again make sure it's centered side-to-side and flush front and back.

• Use 4 of M5x10 and 4 of M5 roll in nuts to bolt the front left z-motor mount to the vertical extrusion. use another 4 of M5x10 and 4 of M5 roll in nuts to bolt the same z-motor mount to teh two horizontal extrusions

• Use 4 of M5x10 and 4 of M5 roll in nuts to bolt the front right z-motor mount to the vertical extrusion. use another 4 of M5x10 and 4 of M5 roll in nuts to bolt the same z-motor mount to the two horizontal extrusions

• Without dropping the carriage, bolt the linear rail to the center rear vertical extrusion. use m3x8 SHCS in every other hole of the linear rail. use corresponding M3 roll in nuts. The bottom of the linear rail should sit flush with the bottom of the rear z-motor mount

• Without dropping the carriage, bolt a linear rail to the front left vertical extrusion, on the inner rear bolt track. Use M3x8 SHCS and M3 roll in nuts every other hole in the rail. the rail should sit flush with the bottom of the z-motor mount

• Without dropping the carriage, bolt a linear rail to the front right vertical extrusion, on the inner rear bolt track. Use M3x8 SHCS and M3 roll in nuts every other hole in the rail. the rail should sit flush with the bottom of the z-motor mount

• turn the printer upside down

  • Install the rubber feet into the printed skirt feet parts
  • Install the skirt feet. Optionally also install the skirt long sections and center pieces. If using the standard electronics enclosure, also install the DIN rail mounts.
  • one-by-one, set each z-motor's threaded rod through the z motor mount, but don't bolt in the motor
  • thread the corresponding bed support onto the z-motor's threaded rod
  • seat the z-motor in its motor mount, installing at least one of its M3x8 screws, from below
  • screw the bed support onto the linear rail carriage with at least one M3x8 bolt

• Once each of the z-motors and carriages have been partially installed, turn the printer right-side up and install the remaining M3x8 screws into the z-motor mounts and into the bed supports into the linear rail carriages

• Apply your heater sticker to the bottom of your bed (the side without the countersinks). A sticker roller can help to apply it without bubbles. Make sure the align the large cutout at the back of the bed, where there's a single screw hole in the middle.

• Use three M4x16 SHCS and 3 8mm spacers to bolt your your bed onto the kossle balls.

• bolt the cable chain to the center rear motor mount and to the center rear bed support. you may need to remove links so that it is just long enough to reach at the maximum z height (at the top)

• bolt the thermal fuse to the bed.

• Bolt the wago mount to the side of the center rear bed support. wire the bed into the wagos. you should have one or two white wires, a red wire, and a JST connector from the thermistor.

  • On 110v, any white wires should connect to the same wago which should then be connected to another wago by way of the thermal fuse. this then connects to the SSR.
  • Connect the red wire to a third wago.
  • Bolt a neutral wire to the bed in one of the empty threaded holes. connect this wire to a forth wago.
  • connect your thermister JST to an extension wire, or splice it into a long wire

• Run all the wires connecting from the bed to your MCU and SSR through the cable chain

• After the Z-motors are operational, drive your bed to the lowest position and apply your magnet sticker to the top of the bed. Optionally, cut out the holes for the bolt locations.