Re: [Homebrew_PCBs] To fillet or not to fillet on a PCB pattern
2014-07-28 by Mitch Davis
Hi John, On Mon, Jul 28, 2014 at 10:01 AM, hudakjm@mcmaster.ca [Homebrew_PCBs] ... I reckon use of fillets to prevent overetch in the corners is a historical
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Re: [Homebrew_PCBs] To fillet or not to fillet on a PCB pattern
2014-07-28 by Rick Watson
The MITER command will let you quickly turn a: wire-90-wire into: wire-45-wire-45-wire. You can apply it to any wire join, it doesn t have to be 90 degrees.
Re: [Homebrew_PCBs] To fillet or not to fillet on a PCB pattern
2014-07-28 by Harvey White
... I almost always bevel at 45 degrees. I rather wish that Eagle had a constrain to 45 degrees by moving both ends behavior as an option. ... I was told
To fillet or not to fillet on a PCB pattern
2014-07-28 by hudakjm@...
I was wondering how many of you folks use fillets in your PCB patterns where two traces, or any two edges for that matter, meet at 90 degrees. I was looking at
Re: Thru Hole to SMD transition: How to and What to get
2014-07-27 by Bob Butcher
Another item I have found very helpful especially when soldering lots of components on a commercial PCB with solder mask is an inexpensive toaster oven. I
Re: Thru Hole to SMD transition: How to and What to get
2014-07-26 by Paul Alciatore
I am also making the transition to SMDs and it is not that painful. Some things I have done and find useful: 1. I did buy a new soldering station, not because
Re: [Homebrew_PCBs] HP LJII, LJ III for toner transfer
2014-07-25 by Stefan Trethan
If you weren t so far away I d give you a spare. I ve already thrown out the printer that replaced the IIID, but the HP would still work I believe. Still, with
Re: Thru Hole to SMD transition: How to and What to get
2014-07-25 by jamesmichaelnewton@...
http://techref.massmind.org/techref/soldering.htm http://techref.massmind.org/techref/soldering.htm
Re: [Homebrew_PCBs] HP LJII, LJ III for toner transfer
2014-07-25 by chuck merja
Thanks Stefan - Maybe I ll try to use until run out of toner. Chuck Merja GO NERDS! FIRST Robotics YouTube On
Re: [Homebrew_PCBs] HP LJII, LJ III for toner transfer
2014-07-25 by Stefan Trethan
They ll work, with genuine HP toner. Some of the remanufactured toners will definitely not work. Main disadvantage is 300DPI only, and not as dark as some
HP LJII, LJ III for toner transfer
2014-07-25 by chuckm@...
I ran across a couple HP laserjet II and III s. are they any good for toner transfer method of PCB making? thanks, C
Re: [Homebrew_PCBs] Thru Hole to SMD transition: How to and What to get
2014-07-25 by B Miller
What size are your final boards going to be? Bob Sent from an Android device On Jul 23, 2014 3:43 PM, qz9090@yahoo.com [Homebrew_PCBs]
Re: Thru Hole to SMD transition: How to and What to get
2014-07-24 by bobledoux@...
Opps, I forgot small de-soldering braid.
Re: Thru Hole to SMD transition: How to and What to get
2014-07-24 by bobledoux@...
I do SMT generally down to 0805, SOIC and SOT-23 size components. In a rare case a TSSOP is soldered. I use a Haako temperature controlled soldering station
Re: [Homebrew_PCBs] Thru Hole to SMD transition: How to and What to get
2014-07-24 by James
I d say any chinese soldering station which takes 900 series tips ( handle looks like this: http://imgur.com/Uwi6dXS ). Any hot air station, preferably one
Re: [Homebrew_PCBs] Thru Hole to SMD transition: How to and What to get
2014-07-24 by Stefan Trethan
Look into getting a hot air rework station. Chinese will do. You need small tips for the iron and multimeter. I won t go into recommendations since I feel
Re: [Homebrew_PCBs] Re: How to Repair Copper Trace on PCB
2014-07-24 by Stefan Trethan
The bubbled coating has to go. Usually it is not necessary to replace the soldermask, acrylic paint or nail polish will serve if you want to protect the area.
Re: [Homebrew_PCBs] Thru Hole to SMD transition: How to and What to get
2014-07-24 by Harvey White
... You would like temperature controlled, and with a 1/16th inch tip at the minimum size (or smaller). Weller has a TCP-1 model available sometimes as
Re: [Homebrew_PCBs] Thru Hole to SMD transition: How to and What to get
2014-07-23 by ctech
Soldering Iron: get the YiHuA 835D or similar model on ebay, get an extra heating element for the gun and iron and solder tips also ebay... cheap ~$100 Gun
Re: How to Repair Copper Trace on PCB
2014-07-23 by qz9090@...
Oh, I also forgot to ask. I have seen a Circuit Writer Pen. Is this kind of thing any good? I have also seen a Green Protective Coating Pen. Does thing kind of
Thru Hole to SMD transition: How to and What to get
2014-07-23 by qz9090@...
First of all, I am a hobbiest so I am not looking to acquire top of this line equipment. With that said, I would like to acquire some new
Re: How to Repair Copper Trace on PCB
2014-07-23 by qz9090@...
Brian, Thanks for your recommendations, I ll have to think about how I am going to approach this repair. A few things that are going to cause me some headaches
Re: How to Repair Copper Trace on PCB
2014-07-23 by qz9090@...
Stefan, When I first saw your message I was a bit confused, but now that I am looking at your link, I see that it is a 186 page PDF on PCB repair. Thanks.
Re: How to Repair Copper Trace on PCB
2014-07-23 by qz9090@...
Brad, Thanks for your input. One of the difficulties I have is that the PCB has a coating (is it call conformal coating) of plastic on it. Obviously, making it
Re: [Homebrew_PCBs] Miss that solder smell ;-)
2014-07-22 by Daniel Donnelly
I too wonder how I survived to reach the age of majority, when I consider the stupid stunts I pulled. Must have been a good egg Dan On Mon, Jul 21, 2014 at
Re: [SPAM]Re: [Homebrew_PCBs] Re: direct laser toner print to pcb
2014-07-22 by Roger Blair
OK! Good news. I see now in your later email that the old info is obsolete, so I ll wait for the new info. Thanks, Roger On 7/22/2014 4:39 AM, Mark Lerman
Re: [SPAM]Re: [Homebrew_PCBs] Re: direct laser toner print to pcb
2014-07-22 by Mark Lerman
It was published in the files section of this group, but I pulled it a few days ago. It was very out of date (2010) and I didn t want to confuse things. Mark
Re: [SPAM]Re: [Homebrew_PCBs] Re: direct laser toner print to pcb
2014-07-22 by twgray2007@...
Where is your earlier work published? The earlier stuff used an ATTINY24?
Re: [SPAM]Re: [Homebrew_PCBs] Re: direct laser toner print to pcb
2014-07-22 by Mark Lerman
Roger, I am trying to convert the hack a bit to not use an MCU. In any case, the current software is much simpler than what I originally published, so ignore
RE: [Homebrew_PCBs] Lead
2014-07-22 by Boman33
A fume hood can easily be made using a regular kitchen stove hood. On three sides add a skirt about 500mm high so it sits on the skirt on the workbench. Run a
Re: [Homebrew_PCBs] Re: Selecting Method For Prototype Boards
2014-07-22 by Peter Johansson
On Mon, Jul 21, 2014 at 5:49 PM, Paul Alciatore palciatore@gt.rr.com ... You may have missed what some of us have been telling you. While you can absolutely
Re: [Homebrew_PCBs] Lead
2014-07-22 by Peter Johansson
On Mon, Jul 21, 2014 at 2:20 PM, Daniel Donnelly KC7VDA@Gmail.com ... a furnace filter on my bench ... end of problem. No expensive fume hood needed. A furnace
Re: [Homebrew_PCBs] Re: direct laser toner print to pcb
2014-07-22 by Roger Blair
I am looking forward to the e260 project, and will be picking one up tomorrow for $40 by way of craig s list. I ve seen your ATTINY24 MCU-2 schematic and I
Re: [Homebrew_PCBs] Re: Selecting Method For Prototype Boards
2014-07-22 by Eldon Brown
I have made a lot of Home Toner Transfer PCB over the last few years. Must of my SMD boards are small (less than 6x6) with 6 or 8 mil traces and 40 mil via
Re: [Homebrew_PCBs] Re: direct laser toner print to pcb
2014-07-21 by Jim Wood
Thanks for you efforts Mark!!! On Mon, Jul 21, 2014 at 1:34 PM, Mark Lerman mlerman@ix.netcom.com ... -- Jim Wood 303-249-0889 (cell) Thanks for you efforts
Re: Selecting Method For Prototype Boards
2014-07-21 by Paul Alciatore
Great responses. Thanks to all. As I said, I will order greater quantities from a commercial PCB maker. I have no intention of making hundreds of them at home.
Re: [Homebrew_PCBs] Lead
2014-07-21 by Stefan Trethan
Most commercial solder fume extractors use activated charcoal filters. I guess it depends what you need to keep away (particulate, volatiles, etc..). There may
Re: [Homebrew_PCBs] Re: direct laser toner print to pcb
2014-07-21 by Mark Lerman
I am hard at work doing an Instructible. Hope to have it on line by the weekend. I ve revised it a bit so that no programming or MCU is necessary. It should
Re: [Homebrew_PCBs] Squink - The conductive ink printer
2014-07-21 by Daniel Donnelly
Jean-Paul is probably correct, i have have been retired for a while now and haven t kept up with the industry. Dan On Fri, Jul 18, 2014 at 5:45 PM, Jean-Paul
Re: [Homebrew_PCBs] Re: direct laser toner print to pcb
2014-07-21 by Jim Wood
I would - I am intersted but will need a *bit* of handolding to be sure. A group process would be great for me. On Mon, Jul 21, 2014 at 1:16 PM,
Re: direct laser toner print to pcb
2014-07-21 by twgray2007@...
When will someone be posting a how-to for this process? I don t know enough about laser printers to even know where to start on something like this, but I am
Re: direct laser toner print to pcb
2014-07-21 by indigo_red@...
Yes, I did everything up to the etching part with this printer. I did some of the roller changes with items on hand. I just tested the quality of the toner
Re: [Homebrew_PCBs] Miss that solder smell ;-)
2014-07-21 by indigo_red@...
Ouch Stefan, that was mean ;-(... I m sad now.... I do respect your work, and that of others, so if you say I need to commit myself to a hospital, I will. And
Re: [Homebrew_PCBs] Lead
2014-07-21 by Daniel Donnelly
OK we all understand that the lead in lead solder poses very little if any danger to the hobby or small job shop builder. We have all agreed that the smoke
Re: Selecting Method For Prototype Boards
2014-07-21 by cs6061@...
Being sure your design is error free is always going to be an issue, it s a probability thing. I have seen simple boards prototyped 4 times before the guy got
Re: [Homebrew_PCBs] Selecting Method For Prototype Boards
2014-07-21 by Harvey White
... I was replying to the cost argument (and agreeing), and commenting on the more than one and somewhat disagreeing. Harvey
Re: [Homebrew_PCBs] Selecting Method For Prototype Boards
2014-07-21 by Peter Johansson
On Mon, Jul 21, 2014 at 12:39 AM, Harvey White madyn@dragonworks.info ... I don t think we are disagreeing at all. When you only want one board it is
Re: [Homebrew_PCBs] Selecting Method For Prototype Boards
2014-07-21 by Harvey White
... I can agree and disagree with this. For me, the advantage of making the boards at home is simply cost. I can do a reasonably decent double sided board,
Re: [Homebrew_PCBs] Selecting Method For Prototype Boards
2014-07-21 by Peter Johansson
On Sun, Jul 20, 2014 at 10:49 PM, Brad Thompson brad.thompson@valley.net [Homebrew_PCBs] ... I think you are looking at this the wrong way. You make PCBs at
Re: [Homebrew_PCBs] Selecting Method For Prototype Boards
2014-07-21 by Stefan Trethan
On Mon, Jul 21, 2014 at 4:49 AM, Brad Thompson brad.thompson@valley.net [Homebrew_PCBs] ... Good advise that. I do that for time critical designs, especially