Re: [Homebrew_PCBs] Re: Toner Print quality
2009-03-14 by Donald H Locker
JPG is quite poor at rendering images with sharp edges, so I would stick with GIF or PNG. The JPG compression algorithm leaves what I think of as visual
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Printer for Toner Transfer
2009-03-14 by jerrytr2.com
Hello, Looks like I need to get another printer. Or at least a cartridge for my little HP Laserjet 1020. My main Brother printer uses toner that s just too
Re: [Homebrew_PCBs] Re: Toner Print quality
2009-03-13 by Paul Playford
Be careful with different formats. Some formats are color and if you print a color schematic on a black and white printer you may not be able to read it. de
Re: [Homebrew_PCBs] Re: Toner Print quality
2009-03-13 by Stefan Trethan
The edges will also smooth out a little. How much i can not say. Definitely they won t be dead straight but then the electrons don t seem to mind. You ll
Re: Toner Print quality
2009-03-13 by trevwhite74
... Hi ST. I agree, i feel the small sprinkle of toner will not transfer. If they do, they will probably etch away. But the lines themselves just do not look
Re: [Homebrew_PCBs] Re: Toner Print quality
2009-03-13 by Stefan Trethan
Those prints may look awful, but often the boards turn out better than the print. The loose sprinkles of toner either don t transfer properly, or if they
Re: Toner Print quality
2009-03-13 by trevwhite74
... Did not realise that about BMP. That is a note for the future. Thanks. Have now added some proper desriptions. Thanks. Hopefully people can view them now
Re: [Homebrew_PCBs] Re: Toner Print quality
2009-03-13 by Stefan Trethan
I was more surprised by the 100GB part. I mean what s happed to yahoo? Have they finally stopped storing our photos on floppy disks (low density, mind) or
Re: Toner Print quality
2009-03-13 by Steve
I m sure the 0% part is a temporary bug. It isn t as much the size of a BMP as it is the potential difficulty in viewing them from a browser. JPG, PNG, and GIF
Re: Toner Print quality
2009-03-13 by Steve
I have Photos set to Approval by Moderator. We had a problem a while back. I approved them so you can go in and add descriptions. Steve Greenfield
Re: [Homebrew_PCBs] Re: Which PCB CAD for someone entering the job market?
2009-03-13 by Stefan Trethan
... If you attribute it s shortcomings to translation and porting, you are far more generous a man than I. ;-) ... Yes. They usually are. ... I m not sure.
Re: [Homebrew_PCBs] Re: Toner Print quality
2009-03-13 by Stefan Trethan
I ve just seen 0% of 100GB in the photos section. Is this the truth or do they make fun of us? This would be astonishing generosity for yahoo. ST
Re: Toner Print quality
2009-03-13 by trevwhite74
Sorry, was thinking I would be able to write a description afterwards but the pics just didnt appear. I think I might have done it again. I have changed the
Re: Toner Print quality
2009-03-13 by Steve
Please resave those images as JPG or PNG and upload them again with descriptions. Think about someone coming across those photos 6 months from now, will they
Toner Print quality
2009-03-13 by trevwhite74
Hi all. I have gotten hold of an old HP Laserjet 2100M. It states a resolution of 1200dpi x 1200dpi and so hopefully it perfect for TT. I have uploaded a
Re: Which PCB CAD for someone entering the job market?
2009-03-13 by rtrtbb
I ve been in this business about 30 years. You will be on a constant learning curve - in the past you did here about a few engineers that made it rich - it
Re: [Homebrew_PCBs] Re: Toaster oven conversion to reflow soldering oven
2009-03-13 by DJ Delorie
http://www.delorie.com/electronics/laminator/laminator.pdf J1 is used to program the R8C; J3/J4 connect the two boards together - I put the high voltage
Re: [Homebrew_PCBs] Re: Toaster oven conversion to reflow soldering oven
2009-03-12 by Jack Coats
I would appreciate it. ... Rookie at this that I am!
Re: [Homebrew_PCBs] Re: Toaster oven conversion to reflow soldering oven
2009-03-12 by DJ Delorie
... I can post schematics if you re interested, but it s such a trivial project... ;-)
Re: Toaster oven conversion to reflow soldering oven
2009-03-12 by Steve
I can definitely see the convenience in that, it skips the step of calibrating the ADC necessary with the National chip. It also means you can use the most
Re: Which PCB CAD for someone entering the job market?
2009-03-12 by Steve
I see that OrCAD has a free demo limited in size of project, I don t recall that being available before. It is almost a Gig download so don t try this on
RE: [Homebrew_PCBs] Hmm, bead blasting?
2009-03-12 by Tony Smith
... had a ... done? ... hardier ... blasting media, ... shape. ... to do, but that s ... even mini- ... constantly ... need to do the ... (I m thinking a ...
Hmm, bead blasting?
2009-03-12 by flightofharmony
I ve been pondering methods to improve/hasten/detoxify homemade PCBs, and had a thought occur yesterday: bead blasting. has anybody tried this or seen it done?
Re: [Homebrew_PCBs] Re: Toaster oven conversion to reflow soldering oven
2009-03-12 by DJ Delorie
Yeah, they re both good, I was just pointing out the convenience of read spi value, that s the temperature . No calibration in the mcu, no having to test to
Re: Toaster oven conversion to reflow soldering oven
2009-03-12 by Steve
... The AD595AQ has internal cold junction compensation, too. And is laser trimmed for K junction to 1C accuracy, with J junction in the AD594, and either can
Re: [Homebrew_PCBs] Re: [makersclub] Toaster oven conversion to reflow soldering oven
2009-03-11 by DJ Delorie
... Goodie! Thanks for the tip.
Re: [Homebrew_PCBs] Toaster oven conversion to reflow soldering oven
2009-03-11 by DJ Delorie
... Alternatively, MAX6675ISA+ thermocouple to SPI chip, also K, $14 at digikey. Outputs absolute degrees C (has its own internal cold junction compensator).
Re: [makersclub] Toaster oven conversion to reflow soldering oven
2009-03-11 by Steve Greenfield
A solder paste supplier recommended on one of the messages on an Instructables: http://www.zeph.com/zephpaste.htm Steve Greenfield
Toaster oven conversion to reflow soldering oven
2009-03-11 by Steve Greenfield
AD595AQ Thermocouple amplifier, laser trimmed to match K type but can be recalibrated for other thermocouples. 10mV/C
Re: terminology question:
2009-03-10 by awakephd
... For those who use Kicad, this is called Zones. You can draw one or more zone outlines and use them to put the zone in, OR to exclude the zone. One thing
Re: [Homebrew_PCBs] Re: terminology question:
2009-03-10 by Piers Goodhew
Thanks everyone, these tips are *gold*. Now that I m laying out with flooding in mind, I m rapidly getting rid of the islands with judicious nudging anyway. I
Re: [Homebrew_PCBs] Re: terminology question:
2009-03-10 by leon Heller
... From: Piers Goodhew To: Sent: Monday, March 09, 2009 10:56 PM ... It s best to avoid them, as they can
Re: [Homebrew_PCBs] Re: terminology question:
2009-03-10 by Harvey White
On Tue, 10 Mar 2009 04:45:25 -0000, you wrote: Click on the unnamed polygon with the name tool and rename it. It will redraw and hook to what needs to be
Re: [Homebrew_PCBs] Brother Printer
2009-03-10 by Harvey White
... Check to see if mouser has it cheaper. I use an HP, not sure that the color toner is not higher temperature. No brother, though.... ... QFP with 0.5 mm
Brother Printer
2009-03-10 by jerrytr2.com
Hello, I just bought some release paper and green foil from pulsarprofx.com. Well, actually from Digikey, but it s the same stuff. In his instrux, the guy
Re: terminology question:
2009-03-10 by Viper62
... I agree, what he said :)
Re: terminology question:
2009-03-10 by Viper62
... I personally have not had any problems using this method, some of my earlier designs were done without using this technique and I had problems with poor
Re: terminology question:
2009-03-10 by warrenbrayshaw
... In Eagle if you flood-fill a polygon without first specifying the net the flooded polygon should connect to (like GND ) it will create these islands .
Re: [Homebrew_PCBs] Re: terminology question:
2009-03-09 by DJ Delorie
... It depends on what your circuit is. IMHO in general grounding is better than not grounding, but I ve done plenty of slow-clock boards with unconnected
Re: [Homebrew_PCBs] Re: terminology question:
2009-03-09 by Piers Goodhew
Next question: If I flood my current design, I get quite a few Islands which cannot be grounded. Is it a bad idea to flood them as you ll induce all kinds of
Re: [Homebrew_PCBs] Re: terminology question:
2009-03-09 by Piers Goodhew
Works in Eagle 5.1x free and officially rocks! Thankyou! PG
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-09 by Piers Goodhew
I m not sure how many late model MacBook Pro users are on here, but if you view the PDF (all nice an anti-aliased) and do the pinch-to-zoom thing, the
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-09 by DJ Delorie
... Added. http://www.delorie.com/pcb/spirals/
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-09 by Stefan Trethan
I think 0 Ohm was a good guess for the 1 mil board. After all it displays as a black square on my screen (without zoom) and will probably print just about the
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-09 by DJ Delorie
... Well, yeah. ... PCB can report that, it s on the order of 60 feet each for the 5 mil board - about 140 ohms at 0.5oz! The 1 mil board at 0.5oz is 315 feet,
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-09 by Mike Schoenborn
... From the web page... ...(outer pad to corresponding inner pad = 0 ohms)... Come on now, you re dealing with engineers here! :-) Can the Perl code be
Re: [Homebrew_PCBs] terminology question:
2009-03-09 by Paul Playford
Flooding. There is a CAD package that does this, maybe ORCAD. de Paul, W8AEF ZF2JI/ZF2TA FO8DX/FO8PLA 8Q7AA XZ0A VU7RG TX5C ... From: Piers Goodhew
Re: terminology question:
2009-03-09 by pgdion1
... It s called a flood or a copper pour. Both OrCAD and DipTrace refer to it as a pour (I highly recommend DipTrace). You can select which net to connect it
Re: [Homebrew_PCBs] terminology question:
2009-03-09 by leon Heller
... From: Piers Goodhew To: Sent: Monday, March 09, 2009 12:43 PM ... It s called isolation milling when
Re: terminology question:
2009-03-09 by Viper62
... I use Eagle 4.16, to do this, I use the Polygon button, I select the layer I want to use then I draw around the the board s edge to cover the whole board,