Big Einsy Case for Bear Upgrade

Notable changes

• Geometry added to mate with the Bear Upgrade V-Slot Extrusions
  • Use either drop-in or standard T-Nuts
  • Use either M5-10 socket head or M5-8 flat head screws
  • Temporary M3-12 screw added to aid in sliding T-Nut alignment.
• Case is 3mm wider to accommodate M5 socket head screws
• Vent pattern inspired by Prusament filament spools.
• Extruder cable clamp diameter reduced to 13mm with tie wrap securing.
• The square and hex nut cavities were resized for better retention.

Printing

• Layer height: 0.3mm Draft
• Supports: “Support on build plate only” with painted support blocking. See .3mf file for details.
• Filament: Prusament PETG

Mounting to Bear Upgrade Frame

• Required Hardware
  • 6 M3 square nuts
  • 4 M3 hex nuts
  • 4 M3-10 screws
  • 2 M3-25 screws
  • 4 M3-10 flat head screws
  • 3 M5-10 socket head or M5-8 flat head screws
  • 3 M5 T-Nuts, drop-in or sliding
• Clean out all holes with a 3mm or 5mm drill bit. Pay particular attention to the four cover mounts. The 3mm hole extends fully through the mounts to aid in clearing debris.
• Insert six square nuts, four in cover mounts, two in the clamp.
• Insert four hex nuts into the back by drawing them through with a M3-12 or larger screw.
• Remove the vertical extrusions's top plate and insert a sliding T-Nut if available.
• Insert an M5 screw in the single V-Slot hole nearest the back. Partially thread a drop-in T-Nut and secure the case to the frame.  Using a drop-in T-Nut precludes the need to remove gussets.
• Slide the two sliding T-Nuts to the top of the extrusion.  Insert a temporary M3 screw  hole as shown. Then, let gravity slide a T-Nut into position and secure.  Repeat for second _T-Nut.
• Install the Einsy board with four M3-10 screws.

Wiring

I found the following order worked well for me.

• Remove the three fuses
• LCD ribbon cables
• Power Panic
• PSU cables
• Heat Bed Power
• Hot End Heater
• Extruder Motor
• Z Axis Motors (2)
• Y Axis Motor
• X Axis Motor
• Left Hot End Fan
• Front Hot End Fan
• Filament Sensor (lower row of pins)
• Heat Bed Thermistor
• Hot End Thermistor
• Super Pinda
• Install fuses