7. Tsim Cov Qhov Ncauj: Kaw cov axles kom ruaj khov rau hauv lawv lub qhov kom ntseeg tau tias lawv nyob twj ywm zoo, tab sis nco ntsoov koj tsis tau kua nplaum ntawm koj lub log. 8. Ntxiv Nyhav: Nco ntsoov ua kom koj lub tsheb Pinewood Derby hnyav raws li txoj cai tso cai.
Puas yog txoj cai los polish Pinewood Derby axles?
Txoj kev kho mob:
Vim tias cov khoom siv pinewood derby tsheb txhua tus siv cov ntsia hlau, uas muaj ntau qhov chaw tsis zoo uas yuav tsum tau muab tshem tawm kom lub tsheb tuaj yeem yob, txhua txoj cai tau tso cai ua ntaub ntawv, xuab zeb thiab polishing rau tes. Rau tau hais tias ntxhiab lossis tso grooves hauv axles raug txwv.
Kuv yuav tsum xuab zeb lub log ntawm lub tsheb Pinewood Derby?
Yav dhau los, pinewood derby lub log muaj cov cim pwm ntawm lub log tsheb uas yuav tsum tau muab tshem tawm los ntawm kev xuab zeb. Cov log tshiab tsis muaj cov cim pwm lawm. Sanding tseem tuaj yeem pab tau los ntawm kev tshem tawm cov kev hloov pauv hauv lub voj voog ncig ua rau lub log rounder tab sis xuab zeb tsis yog qhov tsim nyog li nws yog.
Puas hnyav dua Pinewood Derby tsheb nrawm dua?
Ntau ntau tau sau txog physics ntawm pinewood derby tsheb, thiab qhov no yog ib qho tsis tshua muaj tshwm sim hauv kev sib tw qhov hnyav=nrawm. Aerodynamics tsis tshua muaj txiaj ntsig hauv kev sib tw luv luv, tab sis hnyav ua thiab muab qhov hnyav rau tom qab ntawm lub tsheb yuav ua rau koj lub tsheb nrawm dua ntawm txoj kab.
Qhov hnyav yuav tsum nyob qhov twg ntawm lub tsheb Pinewood Derby?
Nyhav yuav tsum muab tso rau tom qabntawm lub tsheb. Koj tuaj yeem laum qhov hnyav hauv qab, sab lossis nraub qaum ntawm lub tsheb raws li qhia hauv cov piv txwv no. Nyob yam tsawg kawg 1/8 deb ntawm lub qag.
