Project:PCB Making: Difference between revisions
From London Hackspace Wiki
→Tried and Tested Settings
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== Tried and Tested Settings == | == Tried and Tested Settings == | ||
===pingbat & samthetechie 14-Oct-2010=== | |||
*Plain paper used, run through the printer once. Tried to run it through the printer more than once but alignment was crap. | |||
*5 minute exposure in the UV box. | |||
*2 minute developing of the photoresist in the sodium silicate, do not leave it any longer than this, we were tempted and wasted 2 boards. | |||
*We used Maplin Clear Etchant, it was already in the bottle and seemed to work fine although it was quite slow. The tank was agitated using the servo and rocker someone devised, a modified version of the Arduino Servo Sweep example sketch was used. | |||
*We used scales to make up the Sodium Silicate, the scales are in the Multimeter box as of the 14th. | |||
*Results were quite good, nice resolution, might try less than 2 minutes in the developer. Thanks to Muerig and some other kind soul, we have the materials to make Copper Chloride which should be much faster than the clear etchant and can be regenerated so we should never run out. | |||
=== Meurig - 04-Aug-2010 === | === Meurig - 04-Aug-2010 === | ||
