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Vignesh Prasad
10/31/05 08:43
Read: 714 times

#103191 - Timing and Tinning
Responding to: Ashwin Nayak's previous message
Hi Ashwin, we need some practice and patience over using the art paper.

To avoid:
Ashwin Nayak said:
But I must say it takes 3 or 4 tries before I get a perfect trace.

1. Try the blackest setting and dpi on the laser printer. This ensures more toner per track.

2. Pressure is more important than heat for this paper. Try giving up more pressure.

3. Dont press the pcb using iron box in all the ways. Try giving similar and multiple strokes in the same direction, else the toner will smudge.

4. Atleast for 10 mins, soak the pcb+paper after ironing. Dont simply drench the pcb and then peeling. Paper must get disintegrated so that the tracks are intact.

5. Once again, patience and practice are the keys !!

I love this method since this completes a 6"x4" pcb proto within Rs. 30 !!

Ashwin Nayak said:
Have you ever tried tinning your pcb to prevent the copper from getting oxidised. I have enquired a lot for those solutions but no one seems to know anything about it. Please do let me know if you find anything near your place to get the job done.

Yeah, I have given the lead coating or 'tinning' as you call. But the problem is, for prototype works, my pcb fabricator charges a lot for tinning. What I normally do is, after the etching process, I will give a coating of solder lead using a flat tipped soldering iron. The results are very fine for me.


List of 25 messages in thread
Toner Transfer PCB's      Rob Vassar      09/26/05 14:03      
   Toner Transfer      Farshid Jafari Harandi      09/26/05 14:20      
      Don't forget      Jon Ledbetter      09/26/05 14:36      
         I used acetone      Rob Vassar      09/26/05 15:05      
         clean copper side      Farshid Jafari Harandi      09/26/05 20:18      
   File Edges of PCB top and bottom.      Charles Bannister      09/27/05 00:33      
      Type of paper used      Ashwin Nayak      10/07/05 10:53      
         PNP BLUE Type thermal paper.      Charles Bannister      10/07/05 12:28      
      Amazing      Vignesh Prasad      10/11/05 08:41      
         Double sided...      Robert Perez      10/11/05 14:34      
         Alignment of Top and Bottom PCB Layers      Charles Bannister      10/11/05 14:35      
            Double sided etching      Vignesh Prasad      10/12/05 11:25      
               Double sided post !      Vignesh Prasad      10/31/05 08:32      
               Q&A double sided etching      Charles Bannister      10/31/05 19:02      
                  Bubble tank        Steve M. Taylor      11/01/05 03:13      
                     Making one with these guidelines      Abhishek Singh      11/01/05 07:43      
                     addendum      Steve M. Taylor      11/01/05 10:16      
                     Like these...      Jon Ledbetter      11/01/05 10:26      
                     Something like this?      Vignesh Prasad      11/01/05 21:46      
                        Yes      Steve M. Taylor      11/02/05 09:41      
                  New methods      Vignesh Prasad      11/01/05 21:49      
         Art Paper      Ashwin Nayak      10/30/05 11:49      
            Blue sheet Vs Photographic paper      Charles Bannister      10/30/05 14:52      
            Timing and Tinning      Vignesh Prasad      10/31/05 08:43      
               Tin your self      Abhishek Singh      10/31/05 21:03      

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