cablaj cu eagle cad ro
DESCRIPTION
Proiectarea PCB cu softul Eagle CadTRANSCRIPT
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Cum facem un cablaj
Incepatori sau (mai) avansati, ne lovim de problema realizarii cablajului imprimat... Multa vreme am folosit urmatoarea "tehnologie": - desenat pe hartie cu patratele (de matematica) schema in spatiu sau cam cum ar arata, la o scara oarecare; - desenat la scara cablajul pe hartie cu patratele sau calc; - taiat cablajul cu o panza de bomfaier la dimensiunile desenului; - slefuit cu smirghel fin partea acoperita; - prins cu scotch hartia pe cablaj si punctat cu un dorn viitoarele gauri; - desenat cu o seringa cu ac mai gros taiat in care este smoala diluata cu benzina sau antifon diluat.. in cazuri extreme foloseam o scobitoare ascutita, pentru cablaje nepretentioase; - lasat la uscat cateva ore, in functie de vreme :)) - introdus cablajul intr-o tava foto in care este acid azotic sau clorura ferica; - stat pe langa placuta sa se termine "procesul"; - scos placuta cu o penseta, spalata cu multa apa, sters cu o carpa uscata; - sters smoala/antifonul cu diluant; - protejat partea de cupru cu o solutie de sacaz diluat in spirt medicinal; - gaurire placuta; - uneori, acoperire cu fludor a tuturor traseelor....
Mai nou se foloseste "tehnologia" marker-ului si corodare cu clorura ferica si mult mai noua metoda foto sau metoda transferului.
Pana acum desenam cablajele pe hartie.. dar putem folosi programul dedicat EAGLE (click dreapta pe nume pentru a ajunge si descarca softul) .... ca exemplu, desenam schema unui alimentator simplu, compus din transformator, punte redresoare, un condensator electrolitic (de filtraj) si unul nepolarizat:
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PS: Am gasit pe net si un tutorial cum se "fabrica" piese: http://www.ele.auckland.ac.nz/~wsim012/eeeeagle/eagle_page.php4?node=make_library iar lahttp://vulcan.ece.ucsb.edu/ece189/tutorials.html un tutorial complet...
Desi nu are legatura cu realizarea fizica a cablajului, cred ca este utila si..frumoasa o prezentare 3d a montajului, asa ca la http://www.matwei.de/doku.php?id=en:eagle3d:eagle3d gasim un asemenea utilitar...folosit in exemplu
Dupa ce se realizeaza cablajul in Eagle si se creeaza fisierul pentru randarea cu POV Ray obtinem:
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Pentru o usoara intelegere a modului de obtire a unei imagini 3D (asemenatoare montajului real), puteti urmari un mic filmulet: