HerbertMunch
New Member
mvs sarma,
I have perfected my technique now, and the washing thoroughly has helped
Also it wasnt that the developer was too strong, it was because my drying regime wasnt sufficient.
This is true, as i mentioned in my post above. However if you allow a cm at the bottom of the board, the surpless resist will build up in this cm, but will leave a perfect coating on the rest of the board. I have tried this a few times now, and the results are almost as good as the commerical stuff.
I disagree! Maybe if you are spraying horizontally, but vertically, gravity does a fine job no matter how close you spray.
Even though you waste a cm of board and spray, you actually use less spray, becuase you can spray almost a few mm away from your target. It doesnt matter about consistancy, gravity will pull the stuff down the board and leave a lovely coating
instead of spraying loads on the box, becuase you have to spray 10-15 cm away.
the vertical method also ensures that only the thinnest of coating is left. Its also consistent all the way down the board (appart from that cm). This way, when you develop the board, its like using a commercially sprayed product, The resist gets eaten away consistantly.
Why perfect ones spraying technique, when you can be a lazy sod and let gravity perfect the coating?![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I have perfected my technique now, and the washing thoroughly has helped
Also it wasnt that the developer was too strong, it was because my drying regime wasnt sufficient.
3v0 said:If you spray with the board vertical the coating will sag or at least be heavier on the bottom.
This is true, as i mentioned in my post above. However if you allow a cm at the bottom of the board, the surpless resist will build up in this cm, but will leave a perfect coating on the rest of the board. I have tried this a few times now, and the results are almost as good as the commerical stuff.
3v0 said:Most spray processes have an optimal distance for applying the coating. If you move in closer to save on the spray you may get bad results too. Follow the directions for distance
I disagree! Maybe if you are spraying horizontally, but vertically, gravity does a fine job no matter how close you spray.
Even though you waste a cm of board and spray, you actually use less spray, becuase you can spray almost a few mm away from your target. It doesnt matter about consistancy, gravity will pull the stuff down the board and leave a lovely coating
the vertical method also ensures that only the thinnest of coating is left. Its also consistent all the way down the board (appart from that cm). This way, when you develop the board, its like using a commercially sprayed product, The resist gets eaten away consistantly.
Why perfect ones spraying technique, when you can be a lazy sod and let gravity perfect the coating?
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