Marky Menace - The Benchy Bomber

Marky was cutesy with his mission in mind,

Only sunk Benchy if he stepped out of line.

But something went wrong with the firmware one night,

Menace finds pleasure in chaos and fright.

He stalks through the makerspace, silent and cold.

With wires for veins and a heart full of mold.

Each Benchy he sees meets a terrible fate - 

Explosions, laughter, and a grin full of hate.

Where once stood a shelf full of colors and cheer,

Now smolders a graveyard of hulls split by fear.

No airspace is safe, no tugboats at peace -

Unless Menace is stopped, the carnage won't cease!

“Marky Menace”, the Benchmark Biplane Bomber!

Not only is Marky Menace USEFUL in measuring printer accuracy & testing different types/colors/finishes of filament; this is a freaking FUN little fidget toy to play with! 

Spinning Propeller:

• Pop the propeller forward into position via the access hole in the bottom (remove the bomb to reveal).  Use a small screwdriver or similar to pry the shaft forward (toward the front of the plane) till it clicks.

Spinning Wheels:

• Rock the wheels side to side gently to free them from the hubs and lower wings, wheels should spin freely and securely on the hub!

Clearance test #1:

• Marky's belly bomb is flex-fit and print-in-place; if your printer is dialed in, the bomb is droppable.😎

Clearance test #2:

• Press down at a forward angle on the pilot's head to deploy the bomb!

No Supports:

• How?? This little guy is designed to be printed on his nose.

Part-Cooling Performance and Overhang Capability are tested by these (see image below) highlighted features:

Bed adhesion is tested by having minimal surface in contact with the build plate:

• SERIOUSLY. You might want to consider using a build plate adhesive; cause you're about to find out how reliable your first layer stick is!
  • Bed adhesion is arguably the most important component of 3D printing; that's why it's included in this benchmark test.
  • NEW gussets (yellow arrows pointing at them) for wheels (they flick off easily but make a HUGE difference for keeping the wheels securely stuck down!). Technically they're supports, but we're talking 0.009g of filament (calculated with PETG-HF and assuming density to be 1.28g/cm^3).

  • 

Bridging quality is tested in the four locations circled in yellow:

(Also on the wing supports; which I just realized are not pictured here. I'll update the image soon) 

Geometric accuracy:

• Wing span = 55mm
• Wing spacing = 26.27mm
• Wing support thickness = 2mm (Qty 4)
• Tail rudder thickness = 2mm
• Wheel diameter (front wheels) = 14.1mm
• Wheel runout (front wheels) = How droopy are the first few layers on the front wheels?
• Tail width = 27mm
• Nose diameter = 24mm

• Nose to tail (Z-height accuracy) = 64mm

   

I actually intend for this bit to droop a bit so the pilot has a chin:

Extra Feature:

Eyelet feature (highlighted blue) to hang your Markies from… everything?

Hang Marky Menace from your monitor, rearview mirror, shelves, showerhead, nose ring… whatever floats your tugboat.😏

The beloved 3DBenchy has a special place in all our hearts.  Thank you, Daniel Norée and Paulo Kiefe, for creating the 3DBenchy which we've all come to love!

Someone send this benchmark test to Zack Freedman. I'm sure he would have an opinion or two about this.

As always, feedback is welcome! 

ENJOY!

Also check out: 

“Marky”, the Original Benchmark Biplane Bomber! (NOW REMIXABLE)

“Marky X”, the Xtreme benchmark biplane bomber!

“MarkyLite”, the benchmark monoplane bomber! 

Need more bombs?

Bombs don't do it for you? Try “Bobbing Bobby” instead: