Keeb kwm ntawm qee qhov kev tsim muaj rov qab mus ntau txhiab xyoo, tab sis los txog niaj hnub no lawv yeej tsis tso tseg ua rau peb xav tsis thoob nrog lawv tus yam ntxwv. Piv txwv li, lub boomerang yog ib qho qub tub rog thiab yos hav zoov ntawm cov neeg ntawm Asia thiab Australia.
Koj tuaj yeem ua boomerang koj tus kheej. Yog koj txawj ua ntoo, ces koj yuav nrog paub daws lub luag haujlwm. Txhawm rau ua qhov no, koj xav tau ib daim ntawv ntawm cov duab los qhia me me 50x60 centimeters, ntoo plywood 10 millimeters tuab, cov cuab yeej ntoo ntoo, kos duab, ntawv pleev xim, pleev xim.
- Ntawm cardboard peb kos kab sib chaws nrog lub xovtooj ntawm qhov loj ntawm 25 los ntawm 25 millimeters nrog tus xaum qhuav yooj yim.
- Ntawm kab ntawv duab los qhia peb kos tus qauv ntawm cov khoom lag luam yav tom ntej nyob rau hauv cov duab ntawm tsab ntawv "L". Lub hauv paus luv yog 14 hlwb ntev, 15 hlwb ntev, 2-3 hlwb dav. Lub contour yuav tsum yog tus, qhov nruab nrab thiab qhov xaus ntawm lub ntsej zuag. Txiav tawm cov txiaj ntsig ntawm daim duab los qhia nrog lub khob cij.
- Peb thov nws rau ib daim ntawv ntawm plywood thiab taug nws ib puag ncig nrog tus cwj mem yooj yim.
- Peb txiav tawm qhov seem ntawm lub neej yav tom ntej boomerang nrog lub dav hlau.
- Peb ua tus tshwj xeeb tin txee-tsim rau shaping tuaj.
- Peb txhim kho ib qho hniav ntawm cov boomerang hauv qhov tseeb thiab siv cov phiaj xwm los ua qhov profile ntawm lwm hniav, ntu ntsuas xyuas qhov tseeb uas siv qhov khoom cuav. Peb ua ib yam rau cov hniav. Muab cov haujlwm rau qee qhov profile yog qib tseem ceeb heev. Qhov zoo ntawm kev ua tau zoo cuam tshuam rau aerodynamic cov yam ntxwv ntawm lub boomerang.
- Peb ua tib zoo txheej txheem tsim tawm cov khoom ua ntej, ua ntej nrog ntxhib thiab tom qab ntawv zoo nkauj txhuam. Nws tsis pom zoo siv lub sander, vim nws tuaj yeem deform qhov tig tau boomerang profile.
- Peb muab cov xim saum npoo av thiab xim nrog cov xim ci. Cov xim ntxim nyiam yog qhov tsim nyog rau lub boomerang kom pom meej hauv kev ya.
Nws yog qhov zoo dua los ua ib lub boomerang hauv ntau hom, thiab tom qab ntawd, raws li cov ntawv xeem, xaiv qhov zoo tshaj plaws thiab siv nws los ua piv txwv. Yog tias koj tsis muaj plywood ntawm tes, nws tsis muaj teeb meem. Siv cov ceg ntoo uas muaj ceg me, cag ntoo, lossis txawm lub tog ntawm cov ntoo me me, ib yam li Australian neeg txo qis qis. Qhov loj tshaj plaws yog tias cov ntoo zoo zoo thiab homogeneous.
Ntsig nrawm rau qhov chaw ua haujlwm nrog lub phiaj xwm hluav taws xob, band kaw los yog taus. Cov txheej txheem txuas ntxiv yog tib yam li rau plywood dawb paug. Tab sis ua haujlwm nrog cov khoom ntuj tsim yuav tsum muaj qee yam txuj ci. Vim lub peculiarities ntawm tus qauv, tej daim tawv nqaij thiab tawg tej zaum yuav tshwm sim thaum lub sij hawm ua.
