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RC MODELI AVIONA - ELEKTRO => SCALE MODELI => Topic started by: Marcell on November 29, 2019, 11:43:27 AM

Title: P-51 Mustang - scratch built
Post by: Marcell on November 29, 2019, 11:43:27 AM
(https://imagizer.imageshack.us/v2/720x540q90/923/BSCUUl.jpg)
Zavrsio sam jos jedan projekat o kojem vredi reci po koju rec.
Mislim da ima  resenja koji bi bili interesantni modelarima koji sami prave svoje modele.
Model je od stirodura presvucen epoksijem sa 18 gramskim platnom
razmah krila        160 cm
duzina trupa        130 cm
tezina                 2300 g 
motor                 ntm 4238 prop drive (premotan na 6s)
elisa                    14x7
baterija               turnigy 3s 2200mah  2kom
...
Title: Re: P-51 Mustang - scratch built
Post by: bjanko on November 29, 2019, 02:11:03 PM
Bas dobro izgleda i lagan je jel to onaj gradjevinski zelenivstirodur koji ste koristili
Title: P-51 Mustang - scratch built
Post by: Gabor on November 29, 2019, 02:38:05 PM
Imao sam prilike da letim ovaj model. Em urađen vrlo dobro i lepo, em leti za sve pare  (res)
Title: Re: P-51 Mustang - scratch built
Post by: trivajuve on November 29, 2019, 10:07:21 PM
Vidim da je tema napokon na forumu...bilo je krajnje vreme da majstor Karolj podeli sa nama svoje metode koje koristi u pravljenju svojih modela jer ima šta da se i vidi a i da se nauči.... (res)
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on November 30, 2019, 09:37:05 AM
Prosle zime u vezi posla mi je trebao neki kontroler za step motor pa sam poceo da se igram sa arduinom.
Naravno  na netu sam naleteo na gomilu CNC projekta i eto meni zanimacije.
(https://imageshack.com/i/pmF6JcxGj)

(https://imageshack.com/i/poqYn9d7j)

Jako sam bio zadovoljan sa radon i preciznoscu CNC-a i krenuo sa crtanjem
(https://imageshack.com/i/pmOdtpVVj)

(https://imageshack.com/i/pmvydFs0j)

...
Title: Re: P-51 Mustang - scratch built
Post by: dejan_ts on November 30, 2019, 10:22:41 AM
Moze li koja slika vise cnc katera ,bas me iznenadio obliknjega
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on November 30, 2019, 12:53:45 PM
Ideja za takav kater ima na netu jako puno (DIY CORE XY DRAWBOT)
nosaci su seceni na laseru imam pdf fajl pa ako nekom treba mogu poslati na mejl
ja sam koristio alu cevi fi10 (ima ih u uradi sam) a srafio sam ih sa 8mm brezonom
tako da me je izaslo jako jeftino,napajanje je od starog kompa stim da sam na 5v
stavio regulaciju za podesavanje teperature zice.
Title: Re: P-51 Mustang - scratch built
Post by: grebic on November 30, 2019, 01:48:39 PM
Kada bi jedan covek video kakvu si masinu napravio....ne bi se lepo proveo :big smile  A ni mi, ostali, koji pratimo forum zajedno sa tobom :big smile
Svaka cast za masinicu.... (res)
Title: Re: P-51 Mustang - scratch built
Post by: presko on November 30, 2019, 08:13:54 PM
Честитке са моје стране!

Ово је велики напредак у градњи модела!
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 01, 2019, 10:01:17 AM
Besplatni planovi na netu nisu bas nesto preterano tacni a trebalo je puno detalja prepraviti za stirodur
tako da sam sva rebra crtao u inkscape-u

(https://imageshack.com/i/pm38C6Ssj)

(https://imageshack.com/i/plTmOlAjj)

profil: NACA 2415 celom duzinom
Title: Re: P-51 Mustang - scratch built
Post by: dkk on December 01, 2019, 01:44:47 PM
Sjajno, pratim sa uzivanjem.
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 02, 2019, 02:10:50 PM
Posto sam dobio puno pitanja preko PM. vezano za cnc cim budem imao vremena otvoricu novu temu

Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 02, 2019, 02:14:42 PM
(https://imageshack.com/i/pndNHmBoj)
no commemt
Title: Re: P-51 Mustang - scratch built
Post by: drjack on December 02, 2019, 05:39:04 PM
Imao sam prilike da na skupovima vidim iz bliza Vase modele i svi do jednog su bili odlicni.
Svaka cast i za CNC koji je i mene vrlo zainteresovao, dajte sto pre vise detalja. Zima je pred nama ,
vremena na pretek.... 
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 04, 2019, 12:27:01 PM
Sa crtanjem rebara za tup je bilo malo teze jer sam radio sa jako malih slika
zato sto je jedino na ovom planu nacrtan kapotaz.
(https://i.postimg.cc/prtB3fjw/P-51-D-112-SHEET1.jpg)
(https://i.postimg.cc/KzTN9q17/P-51-D-112-SHEET2.jpg)
(https://i.postimg.cc/jjmc40Sd/P-51-D-112-SHEET3.jpg)
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 04, 2019, 12:33:57 PM
Slike trupa
(https://imageshack.com/i/plA0eHVGj)
(https://imageshack.com/i/pnZZiuSej)
(https://imageshack.com/i/plDo0aOsj)
(https://imageshack.com/i/poWSR86zj)
Title: Re: P-51 Mustang - scratch built
Post by: dejan_ts on December 05, 2019, 06:23:01 PM
Cime si lepio drvene letvice za stirodur, 2k lepkom ili belim lepkom za drvo da kazem drvofix
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 05, 2019, 10:00:07 PM
Beli lepak,ponekad koristim nisko ekspandirajuci poliuretanski lepak na mestima gde nema idealnog naleganja.
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 09, 2019, 12:12:15 PM
(https://imageshack.com/i/povNG9qsj)
(https://imageshack.com/i/pmBHYlBkj)
(https://imageshack.com/i/pohZQSdLj)
(https://imageshack.com/i/plbkH8gBj)
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 09, 2019, 12:24:38 PM
Na red je dosao na plankiranje modela.
Isekao sam tablu 3cm debelog stirodura na 2,5mm.
(https://imageshack.com/i/pljcRfJ1j)
(https://imageshack.com/i/pnDeRF9Oj)


Title: Re: P-51 Mustang - scratch built
Post by: dejan_ts on December 09, 2019, 05:10:52 PM
Sa cim sad lepis plank od stirodura za stirodurska rebra
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 09, 2019, 08:53:16 PM
Belim lepkom
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 10, 2019, 11:06:41 AM
(https://imageshack.com/i/poKZlTcnj)

(https://imageshack.com/i/pll1qlUtj)

(https://imageshack.com/i/pnf01B2Ej)

(https://imageshack.com/i/pmGHIgbnj)

Plankiran model je tezio jedva 750grama a i bio je malo mekan.
Zbog toga sam odlucio da probam da presvucem model sa 18 gramskim platnom.
Title: Re: P-51 Mustang - scratch built
Post by: dejan_ts on December 10, 2019, 11:11:47 AM
Takvog mekanog si mogao da ga letis samo u indor varijanti ,da si bio negde nanlivadi i vetrometini ,sve bi se to uvijalo

Tkanje i smola su ga verovatno dodatno ukrutili
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 10, 2019, 01:19:32 PM
Model je bio neverovano krut na uvijanje,nego mekan u smislu kao da je presvucen monokotom.
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 12, 2019, 11:37:48 AM
Presvuceno staklenim platnom 18gr
(https://imageshack.com/i/poNvPDL7j)
(https://imageshack.com/i/pluTWRCsj)
Prednji deo trupa sam radio sa 48 gramskim i pokazalo se puno bolje
jer mi se cini da su vlakna iste debljine samo je 48 gramski gusce tkan
i dobija se ravnija povrsina a masa nije puno veca.
Title: Re: P-51 Mustang - scratch built
Post by: drjack on December 12, 2019, 10:01:03 PM
Koliki je bio priraštaj mase na tih 750 gr. nakon presvlačenja sa smolom i platnom?
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 12, 2019, 11:36:55 PM
Oko 300 grama
Title: Re: P-51 Mustang - scratch built
Post by: dejan_ts on December 13, 2019, 06:05:50 PM
Gledam ove crteze sto si postavio na forumu ,jesu li to tvoji crtezi ili skinuti sa nekog sajta
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 13, 2019, 09:16:38 PM
Sa tih crteza sam radio trup.
Title: Re: P-51 Mustang - scratch built
Post by: dejan_ts on December 13, 2019, 11:39:06 PM
Jel to sa neta skinuto
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 13, 2019, 11:41:19 PM
Da
Title: Re: P-51 Mustang - scratch built
Post by: dejan_ts on December 14, 2019, 01:28:59 AM
Ok ,mozes li da mi prosledia fajl

dejanz890@gmail.com

Hvala
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 14, 2019, 08:39:46 AM
Posle dva sloja spric gita

(https://imageshack.com/i/pliXXD6aj)

(https://imageshack.com/i/pneMc5VYj)
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 16, 2019, 04:29:50 PM
(https://i.postimg.cc/2yF5249w/IMG-1177.jpg)

(https://i.postimg.cc/prtTf0Cr/IMG-1178.jpg)

(https://i.postimg.cc/HWQjYgWy/IMG-1183.jpg)

(https://i.postimg.cc/3wVWRrDg/IMG-1188.jpg)

(https://i.postimg.cc/vmccbxDY/IMG-1197.jpg)

(https://i.postimg.cc/JnX0BwbS/IMG-1207.jpg)
Title: Re: P-51 Mustang - scratch built
Post by: trivajuve on December 16, 2019, 05:43:24 PM
Sad je sa ovim oznakama dobio ono što mu je nedostajalo.Još da su retrakti ubačeni,bila bi naučna fantastika... (res)
Title: Re: P-51 Mustang - scratch built
Post by: bjanko on December 16, 2019, 07:17:38 PM
Bas je odradjen vrhunski a stirodur je bravo majstore
Title: Re: P-51 Mustang - scratch built
Post by: dkk on December 17, 2019, 09:39:33 AM
Sjajno, svaka cast. Odusevljen sam koliko jednostavna tehnika daje izuzetan rezultat.
Title: Re: P-51 Mustang - scratch built
Post by: stevapn on December 17, 2019, 09:59:34 AM
Majstorski!
Title: Re: P-51 Mustang - scratch built
Post by: bjanko on December 17, 2019, 10:09:27 AM
Ja mislim da imam ovaj cnc sekac zapoceo bih 20 aviona (photograf)
Title: Re: P-51 Mustang - scratch built
Post by: presko on December 17, 2019, 11:17:03 AM
Кабина, спинер?
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 17, 2019, 06:03:27 PM
Kabina,spiner, tockovi sve rucni rad
kabina vakumirana od juvidura 0,5mm
spiner dva sloja 160 gramskog platna+epoxi
tockovi tri sloja 1cm debelog neoprena
felne kant traka
Title: Re: P-51 Mustang - scratch built
Post by: Marcell on December 19, 2019, 04:57:06 PM
Kalup za kabinu isto radim od stirodura pa presvlacim sa dva do rri sloja novinske hartije natopljenom sa razredjenim
bejim lepkom i gitujem sa akrilnim gitom

(https://i.postimg.cc/qq0m1xS9/IMG-1223.jpg)

(https://i.postimg.cc/sDmL0bVK/IMG-1222.jpg)
a evo i slika "vakum masine"
(https://i.postimg.cc/1tDC0jCG/IMG-1224.jpg)

(https://i.postimg.cc/0NTXwsf5/IMG-1225.jpg)