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2014-08-21 by Harvey White
... The numbers don t mean all that much, generally (you can see major overexposure and major underexposure). What is important is what works for your setup.
2014-08-21 by alienrelics@...
I have to disagree. I think it is important to learn the terms. If you don t know what someone means, don t be shy about Googling for it, or just asking.
2014-08-20 by jeffjorgo@...
Problems finding this model printer.Already looked many places, Craig list , Ebay, Gumtree, no luck so far. Any other sources you might be able to suggest??
2014-08-20 by Stefan Trethan
Sorry I missed your question, still can t find it in fact, but this troll response caught my eye at least, so that s good. What I mean is that leaded solder is
2014-08-20 by Mitch Davis
Hi Paul, On Thu, Aug 21, 2014 at 2:37 AM, Paul Alciatore palciatore@gt.rr.com ... It s likely that Stefan s first language is not English. Just saying. Mitch.
2014-08-20 by Paul Alciatore
... When he says higher process window he means that HE is the more knowledgeable, IN person in this conversation. He understands what he is saying and he
2014-08-20 by Slavko Kocjancic
On 20. 08. 2014 15:13, Mark Lerman mlerman@ix.netcom.com [Homebrew_PCBs] ... It s 7zip. The manual is little over 10M (limit in files section) and if I use
2014-08-20 by Slavko Kocjancic
On 20. 08. 2014 15:11, Mark Lerman mlerman@ix.netcom.com [Homebrew_PCBs] ... Ok If I use plastic carrier then I need to apply transfer roller (or GND) voltage
2014-08-20 by Mark Lerman
Slavko, I cannot open the file - what is a .7Z extension? Mark
2014-08-20 by Mark Lerman
You can use anything you want as a carrier, but the top surface of the PCB MUST be grounded while the print is being made. If you use a non-conductive carrier
2014-08-20 by Mark Lerman
I think the toner might have to be modified a bit to get the board through. The clearance is very tight. The transfer voltage should remain connected. It is
2014-08-20 by jeffjorgo@...
Interested in making one of these units but having difficulty tracking down any printers.Found a couple in Townsville but they weren t prepared to post down to
2014-08-20 by Matt Rhys-Roberts
Hi, thanks for adding me to the group. I ve just done a quick trial etch, with fair results for my first attempt in years. A scan of this board is at
2014-08-20 by Slavko Kocjancic
Hello... After reading DLP_Genesis I m in doubt what carrier is used? Is it plain aluminum or epoxy coated (insulated) aluminum. I was thinking to make some
2014-08-20 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File : /Direct
2014-08-20 by Slavko Kocjancic
Ahhh... Now I see that too. The transfer roller is a part of drum cartridge. So I need to do mod every time I change the drum (but not the toner). But I think
2014-08-20 by Mark Lerman
Slavko, Most of the Brother printers I have experimented with have the paper path go THROUGH the actual toner cartridge, which has given me a lot of problems
2014-08-20 by Mark Lerman
I ve always programmed in assembler. Actually I learned programming in machine language following a Heathkit learning module. They used Motorola mcus. Mark At
2014-08-20 by Slavko Kocjancic
Hello... I looking to the DLP thread for E260 printer. I like idea but the E260 is now hard to get here. So I look the web and found that someone has converted
2014-08-19 by bazza@...
I think you have done a fantastic service to us all. I have often thought about DLP but have always had too much other stuff on the go. I looked at your
2014-08-19 by Stefan Trethan
Just open the window and you will be fine. SMD soldering doesn t release more fumes than regular soldering, just all at once during reflow. There are again
2014-08-19 by Harvey White
... Get some solder wick to remove bridges, that seems to work better than anything else. You can sometimes use a vacuum desoldering system, but that is often
2014-08-19 by qz9090@...
KeepIt SimpleStupid ,I sounds like I should be looking at 63/37 paste with lead. Until I get more adept at SMT components, solder bridges are to be avoided.
2014-08-19 by qz9090@...
Stefan, Leaded paste has a higher process window than leadfree, so I would recommend that. When you say higher process window , do you mean that there is more
2014-08-19 by Mitch Davis
Some interesting articles about solder paste: http://blogs.indium.com/blog/eric-bastow/solder-paste-expirationshelf-life
2014-08-19 by Stefan Trethan
Leaded paste has a higher process window than leadfree, so I would recommend that. Use no-clean rather than water soluble. The fluxes in water soluble can be
2014-08-18 by KeepIt SimpleStupid
I ll try to make some sense out of your choices. Basically Solder has a solidus and liqudus point. 63/37 solder is cool because they are the same. So,
2014-08-18 by qz9090@...
As I continue to assemble my SMT tools, supplies and processes, I was looking at acquiring some solder paste. Unfortunately, there are several kinds of solder
2014-08-18 by dpower56@...
thanks I now found it at May 1 2010 mark_from_pomona. I was looking for a later folder with Mark Lerman; my bad! Looks very do-able. Thanks for all the effort
2014-08-18 by Roger Blair
Hi Mark, I would be interested in a copy of the Eagle file. Thanks, Roger On 8/18/2014 9:35 AM, Mark Lerman mlerman@ix.netcom.com [Homebrew_PCBs] wrote: The
2014-08-18 by Mark Lerman
The schematic and source file is in the files section of the group, as is a drawing of the pcb. It is extremely simple and would only take a little work to
2014-08-18 by dpower56@...
Are there a board level and system level schematics of the MCU mod?I looked in the files section of the group and didn t see any.Are the MCU boards artwork and
2014-08-17 by Mark Lerman
Thanks for the correction - will republish the pdf. At 12:06 PM 8/16/2014, you wrote: A very minor typo in the PDF ...OBP705WZ IR reflective Sensor Digikey
2014-08-16 by Donald H Locker
Many thanks, Mark. This is a wonderful mod! Donald.
2014-08-16 by Roger Blair
Mark, Thanks so much for your generous offer. I have just sent $10 via PP to mlerman@ix.netcom.com . I ll follow up on private email with my shipping address.
2014-08-16 by Harvey White
... Well.... I don t do vias under the chip at all. I ve recently hit on a design that takes all the supply voltages, spiders them out a little, then goes to
2014-08-16 by arvidj@...
A very minor typo in the PDF ...OBP705WZ IR reflective Sensor Digikey (365-1921-ND)should actually be ...OPB705WZ IR reflective Sensor Digikey (365-1921-ND)and
2014-08-16 by David Bobb
I think the thing that would ease alignment of vias isn t just via size, but via landing size. David Bobb -- N5MUX On Aug 16, 2014 10:12 AM, Mark Lerman
2014-08-16 by Mark Lerman
A little out of my league . My needs are simpler, though I often do use TQFP packages. Those, however, often need vias under the chip, which I can t
2014-08-16 by Harvey White
... I do double sided boards, with the boards made from two .021 boards epoxied together (use 1 hour epoxy!). Alignment is very critical and the drilling
2014-08-16 by Mark Lerman
Roger, It is possible to program smt chips before mounting them, but the zif socket is a bit pricey. What I usually do is provide pads for a header to program
2014-08-16 by Mark Lerman
Thanks, Harvey, for the detailed description - Very interesting setup. One of these days I ll work on something similar, though I rarely drill a lot of holes.
2014-08-16 by Adolf Zimmer
Mark, I’m also interested in a MCU version kit without sheet aluminum. Regards, Adolf Am 15.08.2014 18:44, schrieb Mark Lerman mlerman@ix.netcom.com
2014-08-16 by Bill Maxwell
I can see that shipping that aluminium sheet might be problematic for those of us living internationally. Maybe the aluminium sheet could be left for the
2014-08-15 by Harvey White
... OK, in short. The optical stuff is a 12 volt/24vac camera with almost any lens that works well. You want to move it out away from the CCD so that you
2014-08-15 by Roger Blair
Mark, I suspected that 12 might be enough, but thought a spare might be a good idea. I have the hardware and sensor coming. I have a lot of through hole
2014-08-15 by Mark Lerman
Roger, You are correct on the part # - the one I bought is 48 inches, but you only need 12 . I can supply a PCB and I ll be happy to mount the smt parts, but
2014-08-15 by Roger Blair
Mark, In light of your kit offer, I should clarify my request for a kit, as I was only thinking of a MCU PCB parts kit (with perhaps the MCU only
2014-08-15 by Jim Wood
Mark -- Sign me up for a conversion service. The printer is currently in shipment to me, but I will ship to you as soon as it arrives. Please contact me at
2014-08-15 by Mark Lerman
Hello Harvey, I m interested in getting more information on your drilling setup, mostly the optical stuff - camera, software, monitor. What supplies the