Bill,
I don't think there is anything specific re the MCU. I just pulled out an old E260 and I'm going to convert it to a MCU version. Hope to finish it by the weekend. Not sure where I'll document it, perhaps as an addendum to the Instructable. Maybe I'll set up a web site for this stuff.
Mark
-----Original Message-----
From: "Bill Maxwell wrmaxwell@... [Homebrew_PCBs]"
Sent: Aug 6, 2014 6:22 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: [Homebrew_PCBs] DLP Tests
Thanks Mark
I have seen the instructable but I am particularly interested in your other method, using a mcu hack. I'll try searching as you suggest, although it must be said that searching under the new Yahoo format is fairly hit and miss.
Bill
On 6/08/2014 10:13 PM, Mark Lerman mlerman@... [Homebrew_PCBs] wrote:
Hi Bill,
Here's the Instrucable: < http://www.instructables.com/id/Modification-of-the-Lexmark-E260-for-Direct-Laser-/ >. For some of the threads we've pursued in this group do a search for "DLP" there was one other unrelated thread using that topic, but most of the rest will be about my adventures in what I call Direct laser Printing.
Mark
At 07:22 PM 8/5/2014, you wrote:
Hi mark
Sorry to muscle in on your thread with Jim but I am fascinated by the talk about mcu mods to enable direct printing. Can you provide a link to where I can find out more about your work and any boards etc you may offer, please.
Bill
On 6/08/2014 9:09 AM, Mark Lerman mlerman@... [Homebrew_PCBs] wrote:
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@...> ------------------------------------ Be sure to visit the group home and check for new Links, Files, and Photos: http://groups.yahoo.com/group/Homebrew_PCBs ------------------------------------ Yahoo Groups Links------------------------------------ Posted by: Mark Lerman <mlerman@...> ------------------------------------ Be sure to visit the group home and check for new Links, Files, and Photos: http://groups.yahoo.com/group/Homebrew_PCBs ------------------------------------ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Homebrew_PCBs/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Homebrew_PCBs/join (Yahoo! ID required) <*> To change settings via email: Homebrew_PCBs-digest@yahoogroups.com Homebrew_PCBs-fullfeatured@yahoogroups.com <*> To unsubscribe from this group, send an email to: Homebrew_PCBs-unsubscribe@yahoogroups.com <*> Your use of Yahoo Groups is subject to: https://info.yahoo.com/legal/us/yahoo/utos/terms/