View source for Pinewood Derby Competition

== Introduction ==

Pinewood derby competition (race).  [https://en.wikipedia.org/wiki/Pinewood_derby Pinewood derby !w].

Männystä pieni mäkiauto.

== Derby car ==

=== Säännöt ===

Säännöt ovat mukaillut säännöt [https://www.pinewoodpro.com/images/OfficialPinewoodDerbyRules.pdf Pinewoodpro.com]:n ja [https://scoutingevent.com/attachment/BSA031/document_15834272300_8628.pdf ScoutingEvent.com]:n säännöistä.

Auton mitat
* Pituus 10 - 18 cm.
* Korkeus 3 - 7 cm.
* Rungon leveys 4 - 5 cm, renkaat lisätään kylkiin.
* Akselileveys 3,5 - 6 cm.
* Akseleiden välinen etäisyys 10 - 16 cm
* Maavara vähintään 1 cm.

Paino (eli massa) <math>G = mg</math>
* Massa 80 - 150 g.

Renkaat
* Puusta
* Halkaisija.

== The track from plywood  ==

[[File:Derby track.svg|thumb|The derby track]]

* Radan aloituskorkeus n. 1,4 m.
* Radan pituus n. 10 m; esim 1.5m x 6 palaa + 25 cm lähtöteline.
* Radan leveys 15 - 20 cm
* Ohjuriuran leveys 3.5 cm. Ohjuriurien välinen etäisyys 14 cm??
* Lähdön jyrkkyys 45 astetta.

Tautochrone curve (Brachistrochrone) or Bezier.

Lyöntimutteri M6?

== Gate mechanism ==
[[File:Derby track gate.svg|thumb|Derby tack gate + latch mechanism]]


Electromagnetic
* https://derbytalk.com/viewtopic.php?f=62&t=8715

== Finish line ==

== Physics ==

So much physics in this.

* https://pinewoodderbyphysics.com/pdf%20files/T2%20-The%20Pendulum-Based%20Start%20Gate.pdf

* http://www-cs-students.stanford.edu/~mdevine/pinewood/pinewood_derby.html

== Teaching == 

The documentation

1st lecture.
* Introduction 
* Safety rules
* Planning to a paper: dimensions, shape and colors.

2nd lecture.
* Tool safety
* Tools: saws, planer, straight edge
* Cutting (saw) to length
* Planing
* Drawing the plan to the pinewood.

3rd lecture.
* Tool safety
* Tools: sandpaper, file, saw, planer
* Cutting, reshaping, filing 

4th lecture.
* Tool safety 
* Add the tires
* Same as before

5th lecture.
* Tool safety
* Painting

6th lecture.
* LED lights

7th lecture.
* Competition

== References ==

CO<small>2</small> dragsters are part of (engineering) curricula in Australia, New Zealand, United States.