Sponge + Ferric Chloride Method - Etch PCBs in One Minute !: 5 Steps (with Pictures)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:31

Hauv Cov Lus Qhia no, Kuv yuav qhia koj yuav ua li cas txhawm rau teeb tsa lub rooj sib tham nrog txog ib diav ntawm ferric chloride etching tov thiab 2 nti square sponge. Koj yuav xav tsis thoob li pom tooj liab ntawm PCB ploj mus ua ntej koj ob lub qhov muag, thiab koj lub rooj tsavxwm raug tshem tawm tag hauv ib feeb lossis tsawg dua! lub vev xaib, thiab kuv tsis ntseeg tias nws tuaj yeem ua haujlwm tau. Yog li ntawd ib txwm, kuv tau sim nws. Thaum twg los xij kuv tau ua cov phiajcim yav dhau los, Kuv tau ua nws ib yam li peb txhua tus ua. Kuv muab cov tshuaj ferric chloride tso rau hauv ib lub tub me, tso daim npog ntsej muag lub ntsej muag tso rau hauv qhov kev daws teeb meem, thiab rub nws rov qab thiab tawm mus ntev. Txawm hais tias nrog cov tshuaj tshiab, muaj zog ferric chloride daws, nws feem ntau yuav siv sijhawm tsawg kawg 10 feeb rau tooj liab kom raug tshem tawm. Raws li kev daws teeb meem tsis muaj zog, cov etch yuav siv sijhawm ntev dua thiab ntev dua. Ob peb lub hlis dhau los, Kuv tau tshawb pom 1-ntu cov kua qaub (muriatic acid) mus rau 2 ntu hydrogen peroxide txoj hauv kev ntawm kev teeb tsa lub rooj sib tham. Koj yuav pom ntau ntau Cov Lus Qhia Zoo ntawm txoj hauv kev no. Txoj kev ntawd ua haujlwm zoo, thiab nws ua rau kuv npau taws uas kuv tau siv nyiaj ntau thiab siv zog nrog ferric chloride ntau xyoo thaum kuv twb muaj tag nrho cov tshuaj uas kuv xav tau hauv tsev los siv txoj hauv kev no. Ob sab ntawm cov kua qaub thiab hydrogen peroxide tov yog tias cov kua qaub muriatic tuaj yeem ua rau daim tawv nqaij kub hnyiab thiab txaus ntshai me ntsis thiab ua rau tej yam uas nws cuam tshuam. Tsis tas li, Kuv pom cov tshuaj sib tov ua rau muaj kev txhoj puab heev uas yog qhov zoo rau kev nrawm nrawm, tab sis kuv tau xaus nrog qhov kev txiav me me thiab ib nrab tshem tawm ntawm cov kab, thiab cov kev daws teeb meem ntau dua rau cov tshuaj tiv thaiv cov khoom kuv tau siv, thiab ib nrab yaj lub npog ntsej muag tam sim thaum lub qhov khauj khaum Lub asthiv no kuv tau sim daim txhuam cev no thiab cov txheej txheem ferric chloride los kos 3 Arduino shield boards Kuv tab tom tsim qauv rau peb li RFID-qhib tus tswv cuab nkag mus rau hauv TechShop (TechShop yog 15, 000 square foot ua tswv cuab-raws li DIY rhiav nrog cov chaw nyob hauv Menlo Park CA, Portland LOSSIS thiab Durham NC). Kuv zoo siab heev nrog kev ua tiav ntawm cov txheej txheem no uas kuv txiav txim siab sau nws los ua Kev Qhia Paub. Txoj hauv kev Kuv yuav tam sim no qhia koj muab qhov zoo ntawm txhua lwm txoj hauv kev, thiab tsis muaj qhov poob qis. Tshwj xeeb: o Koj tau txais cov ntawv nrawm (nrawm dua li ob txoj hauv kev uas kuv paub), o Koj siv ib rab diav daws, yog li teeb meem pov tseg raug tshem tawm o Ib lub raj mis me me ntawm ferric chloride yuav nyob ntev rau ntau pua ntawm cov laug cam Tsis muaj lub tank lossis tub xav tau, tsis muaj cua sov lossis ntxhov siab o Kev txiav txiav yog qhov tsis muaj nyob, thiab qhov tsis kam nyob hauv qhov chaw o Tsis tas yuav tsum tau sim txo tus tooj tooj liab uas tau pleev xim o Cov etch tau nrawm heev uas nws yog qhov zoo siab tiag tiag los saib thiab Qhia koj cov phooj ywg! Cia peb mus rau nws, puas yog?

Kauj Ruam 1: Yam Koj Yuav Tsum Tau

Koj tsis xav tau ntau cov khoom siv rau Cov Lus Qhia no, tsuas yog cov hauv qab no: o Ferric chloride (muaj nyob hauv Xov Tooj Cua Shack, 16 oz fwj rau $ 10, tus lej naj npawb 276-1535) o Sponge (2 "x 2" square, txiav los ntawm ib daim txhuam cev, lossis daim phuam ntawv yuav ua haujlwm ib yam nkaus) o Cov hnab looj tes roj hmab (koj tsis xav kom koj txhais tes ntub) o Cov Rooj Sib Tham Tooj Tooj (ib lossis ob sab) o khob dej (kom tso cov laug cam tso rau hauv kom tsis txhob khawb)

Kauj Ruam 2: Ntxuav Tooj Tooj thiab Siv Qhov Tiv Thaiv rau Circuit Pattern

Muaj ntau ntau Cov Lus Qhia txog yuav ua li cas siv cov qauv hluav taws xob mus rau koj cov tooj liab, suav nrog tev thiab nias, daim ntawv yees duab, kab xev, duab-rhiab emulsions, thiab txawm tias Sharpie cwj mem. Kuv yuav tsis kov ib feem ntawm cov txheej txheem ntawm no, tab sis txoj hauv kev kuv nyiam siv yog luam ntawv laser mus rau ib daim Pulsar's dextrin ntawv thiab siv ib ntawm lawv li $ 70 tus kheej laminators los siv lub tshuab luam ntawv rau lub rooj tsavxwm. Tom qab ntawd koj yaug daim ntawv thiab PCB hauv qab dej thiab daim ntawv swb tawm mus, tawm hauv lub toner daig nrawm rau ntawm pawg thawj coj. Kuv siv Scotch Brite ncoo thiab qee cov tshuaj ntxuav tais diav los txhuam cov tooj liab kom huv, raws li pom hauv thawj daim duab. Tom qab ntawd kuv txhuam nws nrog daim ntawv so tes thiab cia nws qhuav tag. Tsis txhob kov cov tooj liab uas tau ntxuav, vim tias cov roj los ntawm koj cov ntiv tes yuav ua rau lub cev tsis ua raws li tooj liab, thiab qhov kev tawm tsam yuav tawm thaum lub sijhawm txheej txheem. Yog tias koj xav ua si nrog Cov Lus Qhia tam sim no thiab koj tsis xav ua qhov tseeb, tsuas yog siv tus cwj mem Sharpie los kos me ntsis luag nyav rau ntawm koj lub rooj sib tham tooj liab uas tau muab ntxuav. Hav, nws tawm los zoo nkauj heev!

Kauj Ruam 3: Txhim Kho Lub Rooj Tsav Xwm (Ua Kev Zoo Siab Tam Sim No!)

Muab tso rau hauv koj lub hnab looj tes roj hmab. Qhib lub raj mis ntawm ferric chloride thiab muab daim txhuam cev tso rau ntawm qhov qhib, thiab muab lub raj mis tso cia kom hais txog ib diav lossis ntau dua ntawm cov kua saturate rau hauv daim txhuam cev. tsuas yog so cov tshuaj-saturated sponge hla ntawm lub rooj tsavxwm ntau dua. Tsis txhob txhuam, cia li so nws tag nrho. Hauv ob peb feeb ntawm kev so, koj yuav pom cov tooj liab pib ploj! raws li koj so Hauv tsawg dua li ib pliag ntawm kev maj mam so, koj lub rooj tsavxwm yuav raug muab txhuam ua ntej koj ob lub qhov muag! Tso daim phiaj hluav taws xob tshem tawm mus rau hauv lub tais dej kom tsis txhob cuam tshuam. tawm ntawm daim txhuam cev, nyem tawm cov dej feem ntau, tom qab rov thov cov tshuaj ferric chloride yog tias xav tau, tab sis kuv tau pom tias kuv tuaj yeem cim ob daim ntawv 2 "x 3" nrog rau ib daim ntawv thov.

Kauj Ruam 4: Ntxuav (Tsis Ntau Ua)

Kev ntxuav tu tiag tiag tsuas yog teeb meem yaug tawm daim txhuam cev, pov tseg cov hnab looj tes roj hmab (lossis yaug yaug lawv kom rov siv tau), thiab tu ib qho dej ntws los ntawm ferric chloride los ntawm qhov chaw ua haujlwm. yog li yaug nws thiab cia nws qhuav, thiab khaws nws nrog koj lub raj mis ntawm ferric chloride.

Kauj Ruam 5: Ua tiav Cov Khoom, thiab Koj Cov Ntsiab Lus

Nov yog cov khoom tiav. Tsis zoo rau 5 feeb txij thaum pib mus txog qhov kawg! Kuv vam tias koj yuav pom zoo tias txoj hauv kev no nrawm dua, pheej yig dua, thiab zoo siab heev los saib dua li lwm txoj hauv kev uas koj tau siv yav dhau los. Kuv yuav twv koj yuav tsis siv lub ferric chloride tub lossis lub tank tso rau hauv txoj kev dua. cov ntaub ntawv kuv nyeem tau qhia tias ntxiv me ntsis ntawm citric acid rau ferric chloride yuav ua rau nws muaj txiaj ntsig zoo dua rau kev siv nrog daim txhuam cev lossis cov txheej txheem dej. Koj tuaj yeem pom cov kua qaub citric acid ntawm npias thiab cawv ua khw, thiab txawm tias nyob ntawm eBay. Mus tom ntej thiab sim ua cov txheej txheem no, thiab qhia rau kuv paub hauv ntu Lus Lus Yog tias qhov no yuav dhau los ua koj txoj hauv kev tshiab rau kev kos cov kab hluav taws xob zoo li nws tau ua rau kuv.