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trigonometry-is-my-bitch:

How a hole is drilled to be made square. The red shape in the center would be the cutting tool.
it shares the same principle as a Reuleaux triangle but with one rounded corner so that the cut square does not have rounded edges; the cutting tool follows the path of the rounded edge that is tangent to the sides of the outer square. because a tangent line is perpendicular to the radius, as the cutting tool follows the path of the rounded edge it turns precisely 90° to create a sharp edged perfect square.

trigonometry-is-my-bitch:

How a hole is drilled to be made square. The red shape in the center would be the cutting tool.

it shares the same principle as a Reuleaux triangle but with one rounded corner so that the cut square does not have rounded edges; the cutting tool follows the path of the rounded edge that is tangent to the sides of the outer square. because a tangent line is perpendicular to the radius, as the cutting tool follows the path of the rounded edge it turns precisely 90° to create a sharp edged perfect square.

(via liea)

— 20 hours ago with 1628 notes
Congrats NewBee!

Congrats NewBee!

— 1 day ago
#dota2  #ti4 
Wildstar Guest Pass?

Anyone have a spare for NA? I’d love to try this game out.

Edit: I got one!

Thank you so much!

— 6 days ago
#wildstar 
thingiverse:


Why don’t all dice1 have braille numbers?2

D20 with additional braille numbers by idellwig ↩


Photo by PhyCo ↩

thingiverse:

Why don’t all dice1 have braille numbers?2

— 1 week ago with 61 notes

10% off at my Etsy store

Coupon code: TI4DOTA2

Happy DOTA!

— 1 week ago with 1 note
#DOTA2  #TI4 

thingiverse:

Composting waste is good for the planet. Watching waste get shredded is good for the soul.1

— 2 weeks ago with 16 notes
#3d printing