Strangely my printer just refuses to print M shaped logos.

For everyone else with the same... "problem" here is my fix.

v1 = No logo
v2 = Proper logo
v3 = No logo, Extra thickness of the bottom layer left intact so you can add your own logo

Note: You need to print the whistle lid and fan from the original whistle

FYI the circle around the reprap logo only shows in the screenshot. It shouldn't be there in the print.

Nothing special, just print with your favorite settings.