Homebrew PCBs

Hi Jim,

If .086 PLUS the .010 carrier works, then .062 should go through, if 
the ribs are cut off. I might have to get another E260 and try it. I 
just bought a "dead" E250 to see if it can be modified. I paid about 
$25 for it. I think it will work, but I have to get a drum and toner 
cart for it.

I have two E260s that have been modified exactly the same. Using the 
same toner/drum, 1 gives perfect images, while the other has skipped 
areas on the same pcb. <sigh>.

Mark

At 04:07 PM 8/5/2014, you wrote:
>Hi Mark
>Very good write up on your modification of the LexMark 260
>
>The last communication we had was about the maximum carrier thickness
>plus PCB thickness.
>I was running a 0.062 PCB without a carrier and the printing was
>stopping at about half way through. That was caused by the PCB being too
>short and the ground pulling off the PCB as it was half way through the
>printer. Putting the PCB on a 0.010 card stock carrier that was about 12
>inches long cleared that up. (using a small wire soldered to the PCB and
>attached to some copper tape at the trailing end of the carrier. then a
>paper clip connection to ground.)
>
>Today I preformed an experiment to determine the MAX thickness that
>would go through the printer. I took a stack of 0.012 card stock sheets
>and stacked them to make an overall thickness of about 0.062 inches. I
>didn't include a PCB ... just printed on the card stock.
>0.062 ... ok
>0.074 ... ok
>0.086 ... ok
>0.098 ... jammed
>so it looks like a carrier plus PCB thickness of 0.086 is my limit.
>Also your extra effort to remove the paper platform is neccessary for
>thicker PCBs.
>
>Note: the paper platform has not been removed in my modification but the
>"ribs" and "bumps" on the paper platform has been shaved off using a
>sharp chisel.
>
>Jim KI6MZ
>
>
>------------------------------------
>Posted by: Jim <jhutch17@...>
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