RepRap Gen7 PCB… check!

Pos­ted by  via T(h)inker it!

 
Today went back to AltLab for a lit­tle lear­ning expe­ri­en­ce. A gre­at fri­end of mine, Fer­nan­do Afon­so, came to Lis­bon to the laun­ch of MEO Kanal, a pro­duct he hel­ped brin­ging to life. Sin­ce he was here, he was invi­ted by AltLab to give a small workshop on “PCB Making… The Fer­nan­do Afon­so way”. :)The method used was Toner Trans­fer, whe­re you print the cir­cuit layout with a laser prin­ter on che­ap maga­zi­ne paper (the more glos­si­er is bet­ter), then, with the toner side over the cop­per side and woot… the “sandwi­ch” off it go into a sligh­tly modi­fi­ed lami­na­tor (around 10 times) and the it’s sub­mer­ged in fre­e­zing cold water.The low qua­lity maga­zi­ne paper it’s easily scrub­bed off the pcb and it’s ready to the acid bath.
We used Acid Cupric Chlo­ri­de as etchant, when the pcb is sub­mer­ged  it turns into a… kryp­to­ni­te gre­en… spo­oky I say!In the end we’ve got a Gene­ra­ti­on 7 Elec­tro­nics pcb for the Pru­sa Air… next step, buy the com­po­nents and sol­de­ring it 😀