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la fabrication
en 15 étapes

tracer la forme de
votre boomerang sur
un contreplaqué
(bouleau, qualité
aviation, le meilleur !)

c'est fait !

découpage à la scie
sauteuse. Attention
aux doigts !

deux outils
indispensables : une
(bonne) râpe et un
serre-joint.

placez le bord du
boomerang que vous
désirez travailler sur
le bord de votre plan
de travail.
râpez !
L'inclinaison de la
râpe dépend du
profil que vous
voulez obtenir :
45° pour obtenir un
bord d'attaque, (sur
la moitié de
l'épaisseur)

plus à plat pour un
bord de fuite. En
atteignant
progressivement le
milieu de la largeur
de la pale.
Les bouts de pales
doivent être profilés
en bord de fuite pour
ne pas gêner la
rotation.

Comme çà, vous
voyez !

Vue du bout.
Notez, au passage,
que le dessous reste
plat.
Même chose pour
l'autre pale.

Le plus gros est fini.

Il reste à poncer au
papier de verre avec
des grains de plus en
plus fins pour
arrondir les bords
d'attaque et éliminer
les traces de râpe.

Une fois le ponçage
terminé, passez aux
essais et à la
finition (décoration,
vernis)
Et bons vols !

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La fabrication

  • 1. la fabrication en 15 étapes tracer la forme de votre boomerang sur un contreplaqué (bouleau, qualité aviation, le meilleur !) c'est fait ! découpage à la scie sauteuse. Attention aux doigts ! deux outils indispensables : une (bonne) râpe et un serre-joint. placez le bord du boomerang que vous désirez travailler sur le bord de votre plan de travail.
  • 2. râpez ! L'inclinaison de la râpe dépend du profil que vous voulez obtenir : 45° pour obtenir un bord d'attaque, (sur la moitié de l'épaisseur) plus à plat pour un bord de fuite. En atteignant progressivement le milieu de la largeur de la pale. Les bouts de pales doivent être profilés en bord de fuite pour ne pas gêner la rotation. Comme çà, vous voyez ! Vue du bout. Notez, au passage, que le dessous reste plat.
  • 3. Même chose pour l'autre pale. Le plus gros est fini. Il reste à poncer au papier de verre avec des grains de plus en plus fins pour arrondir les bords d'attaque et éliminer les traces de râpe. Une fois le ponçage terminé, passez aux essais et à la finition (décoration, vernis) Et bons vols !