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Author Topic: in house PCB fab? tulad ng sa raon na quality. anu mga kelangan kong materials?  (Read 1411 times)

Offline NanotecH

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ayos, point for you..

ano twag dun sa DIY soldermask material sis?

may mapagkukunan ako ng murang dry-film photoresist(or sadyang mura lagn talaga ito?) wala pa nga lang budget kasi may minimum amount yung pag-order ng items :D

thanks, sis!

dry-film soldermask lang alam kong tawag dun, sis, yun ba tinatanong mo?

gaano kamura naman yung df photoresist?  puede bang pa-PM ng info, sis... di pa ba expire yun kaya mura?
dito lang ba sa pinas yung sinasabi mo?
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Offline nucleus

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single side lang pala, bili na lang ng laser printer photo paper at laminating machine yakang yaka yan
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Offline updated

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hindi papayag yung mokong kong employer sa photo paper. parang si ate gigz yun ehh. hndi pa nga naririnig yung price namamahalan na.  ;D ;D ;D

next week magsisimula na ako magpabili ng materials para pag fab. good luck nlng sa akin. may ojt naman akong kinuha so may katulong na din ako ;D ;D ;D

salamat sa mga advice. pogi nyo
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Offline Kaizer03

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impakta.. di ako ganyan no :D


nga pala.. magdryfilm photoresist ka na lang.. masmadali pa..tapos i-FR4 mo na yung PCB..

mura sa china nyan.. paexpress delivery nyo na lang :D

di ko pa naoorder yung akin, maybe second week of May :D
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Offline akhen

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may ojt naman akong kinuha so may katulong na din ako ;D ;D ;D

ok yan at least may karamay ka at testigo para mapatunayan sa boss mo na mali ang naisip nyang solusyon sa pagtitipid... :D :D :D

sabi nga ng mga matatanda, naghangad ng kagitna, isang salop ang nawala... ;D

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Offline updated

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makata ka tlg sis
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Offline akhen

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Offline nucleus

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hindi papayag yung mokong kong employer sa photo paper. parang si ate gigz yun ehh. hndi pa nga naririnig yung price namamahalan na.  ;D ;D ;D

next week magsisimula na ako magpabili ng materials para pag fab. good luck nlng sa akin. may ojt naman akong kinuha so may katulong na din ako ;D ;D ;D

salamat sa mga advice. pogi nyo

P2.00/pc lang yung pinakamanipis na photo paper dito samin sa balanga magkano lang siguro yung isang rim dyan sa maynila :D

pero mas mura parin kung silk screen method
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Offline Kaizer03

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just a thought lang..

in a way na makakatipid nga tayo in terms of costing, pero masmalaki ang nawala saten, in our industry i think masmahalaga pa rin yung time(production/development time) vs sa costing ng DIY fabrication ng PCB, mas malaking time ang kakainin nito. For me ang good lang dito is experience :D maganda lang din sa simula..

so i guess sana marealize ng employer mo ito before implementing this, siguro right now di pa ramdam lalo na kung di pa masyado natatambakan ng trabaho si ate frank sa mga designs.

--

BTW, gusto ko nito :D


or kahit bigyan nyo ko ng 14" wide na Laminator :D ako na bahala sa dry-film :D
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Offline nucleus

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just a thought lang..

in a way na makakatipid nga tayo in terms of costing, pero masmalaki ang nawala saten, in our industry i think masmahalaga pa rin yung time(production/development time) vs sa costing ng DIY fabrication ng PCB, mas malaking time ang kakainin nito. For me ang good lang dito is experience :D maganda lang din sa simula..

so i guess sana marealize ng employer mo ito before implementing this, siguro right now di pa ramdam lalo na kung di pa masyado natatambakan ng trabaho si ate frank sa mga designs.

--

BTW, gusto ko nito :D


or kahit bigyan nyo ko ng 14" wide na Laminator :D ako na bahala sa dry-film :D

yung time na gugulin sa toner transfer method kumpara sa presensitized, kung merong laminator parehas lang

BTW
naikukumpara na lang din sa chinese small scale manufacturers, pwedeng mamili ng mga lumang magazine at imbes na photo paper eh yun na lang :D :D :D

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Offline updated

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tambak na nga. eto umaga na andito pa sa trabaho. nagpagawa ng inverter sa china pag dating dito sira sira na. puro pa rush, ang saya saya.
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Offline Ganda692002

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or kahit bigyan nyo ko ng 14" wide na Laminator :D ako na bahala sa dry-film :D

San ka ba bumibili Dry Film Resist.. Meron akong Laminator sa bahay...

Offline Kaizer03

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yung time na gugulin sa toner transfer method kumpara sa presensitized, kung merong laminator parehas lang

BTW
naikukumpara na lang din sa chinese small scale manufacturers, pwedeng mamili ng mga lumang magazine at imbes na photo paper eh yun na lang :D :D :D



my point is comparing the DIY sa pagpapagawa na lang.. and to think, this is for commercial product/s not a hobbyist project/s. Instead of wasting your time in doing PCBs gamitin mo yung time mo para masmaayos yung design ng products nyo or think some various alternatives na "well-fitted" sa environment nyo..



--

San ka ba bumibili Dry Film Resist.. Meron akong Laminator sa bahay...

wala pa sir, meron ata sir sa ebay.. :D may ttry ako sa china, kaso wala pang budget.. kung ok edi ayun :D

dun sa link na binigay ni sir nanotech, meron din dun.. =)

--
tambak na nga. eto umaga na andito pa sa trabaho. nagpagawa ng inverter sa china pag dating dito sira sira na. puro pa rush, ang saya saya.


goodluck ate frank :D baka magLBM ka ng di oras nyan :D
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Offline rdpzycho

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BTW
naikukumpara na lang din sa chinese small scale manufacturers, pwedeng mamili ng mga lumang magazine at imbes na photo paper eh yun na lang :D :D :D

hindi gumagamit ng magazine ang mga small scale manufacturer nila. :D nakikigamit sila ng makina sa bigger companies at ino-offset na lang nila sa leadtime. actually, kapag dumadami na 'yung contacts sa China, saka mo mapapansin na meron silang common bigger company na hinihiraman ng resources. meron silang common building for R&D. kahit 'yung iba-ibang supplier namin ng SAW filter ganun din.

'yung mga ibang countries dito sa South East Asia ang gumagawa ng mga improvised techniques, makikita naman sa Youtube. :D
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Offline nucleus

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hindi gumagamit ng magazine ang mga small scale manufacturer nila. :D nakikigamit sila ng makina sa bigger companies at ino-offset na lang nila sa leadtime. actually, kapag dumadami na 'yung contacts sa China, saka mo mapapansin na meron silang common bigger company na hinihiraman ng resources. meron silang common building for R&D. kahit 'yung iba-ibang supplier namin ng SAW filter ganun din.

'yung mga ibang countries dito sa South East Asia ang gumagawa ng mga improvised techniques, makikita naman sa Youtube. :D

:D sa mga products na nakikita ko naman yung iba kundi chinese, japanese ang news paper na ginamit ;D ;D ;D
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Offline ♪ ♫ ♫ ♪ ♪ ♪ ♫ ♫ ♫

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ot yata ito just thinking out of box.

sino kaya makagawa ng liquid conductor o printable conductor? para wala ng etchingan..!

printa lang ayos na  ;D

graphite o lapis o carbon is a good contender  ;D carbon paste as a solder  ;D
It's difficult to see the picture when you're inside the frame.

Offline Kaizer03

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try mo sir, instead na ink ang ilagay sa printer mo, conductive paint :D heheheh

tapos balitaan mo kami ;D ;D ;D
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Offline ♪ ♫ ♫ ♪ ♪ ♪ ♫ ♫ ♫

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meron ba conductive paint + silk screen, link naman dyan...

edit:

eto pla yon

■Paint type - includes graphite, nickel, copper, silver plated copper and silver particles in water or solvent based matrix
■Paint thickness - typical dry film thickness ranges from 0.001 (0.025 mm) to 0.002" (0.050 mm)

makhano kaya ito  ;D
It's difficult to see the picture when you're inside the frame.

Offline Kaizer03

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may conductive paint sa alexan.. 1k+ ata ilang mL lang :D

makatingin nga next time sa chinese store :D
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Offline ♪ ♫ ♫ ♪ ♪ ♪ ♫ ♫ ♫

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sana nga may tsina made na nito  ;D

adhesive paper cutter printer yata kapakner nito. lagay lahat ang components then spray upto desired thickness  :D baked then  wahlaah tapos na. ;D

hahalikan pa siguro tayo ng denr.... :D
It's difficult to see the picture when you're inside the frame.

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