Mastercraft MultiMeter Box

As an experiment in transparent printing, I embossed hexagons into the lid to make it half as thick except for the ribs between the hexagons, and printed in 3D Printing Canada PC+ Transparent filament using a max of 20 mm/s for the bottom 6 layers.  Transparency isn't great - it would probably improve using the various suggestions from the Prusa Blog and other forum posts.

I also embossed the word “Voltmeter” on the lid using 3D Printing Canada PC+ White.  Import the STL file for the lid instead of the STEP file if you want to avoid the lettering.

To print the lid:

• Import the STEP file (not the STL which excludes the lettering) for the lid.
• Place the top of the lid on the build plate.
• Set up for multicolour printing (single extruder multiple colours in my case) using the instructions by minor havoc from https://forum.prusa3d.com/forum/postid/562228/
• Assign “SOLID_A” to the default extruder (transparent in my case), and all letters “Componentxx_B” to extruder 2 (white)
• Split the model into 2 at the 1.2 mm layer, and change the following parameters for “SOLID_B” to 20 mm/s: 
  • external perimeters
  • gap fill
  • infill
  • perimeters
  • small perimeters
  • solid infill
  • top solid infill
• I didn't do this, but I think it would help clean up the letters - change the same speed parameters for all the letters (named “Componentxx_B”)
• Everything else default except possibly 0.2mm STRUCTURAL w/ Gyroid infill, 0.4 mm nozzle

I printed the box bottom and latches from 3D Printing Canada PETG+ Blue and White with standard settings (0.2 mm layers, 0.4 mm nozzle, full MK4 IS).

I didn't print a seal but the STL file is there for it.  I also included my Fusion360 export for your amusement.

Uses 6 M3x30mm bolts for the hinges and latches.

The rugged box was sized to fit this voltmeter, and some simple partitioning to hold it in place.  Added slots to hold the probes with the cables underneath neatly.

As an experiment in transparent printing, I embossed hexagons into the lid to make it half as thick except for the ribs between the hexagons.

I embossed the word “Voltmeter” on the lid using 3D Printing Canada PC+ White.