Re: [Homebrew_PCBs] Re: shelving vinyl toner transfer
2013-06-29 by James
... Yes that s correct. Thin layer of the ink (paint, whatever you want to call it), cover it (still wet) with your cellophane (or other suitable plastic which
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Re: shelving vinyl toner transfer
2013-06-29 by Terry
So, to clarify, are you saying to spread the ink on the board, then cover with cellophane? Then while still wet, place the mask and expose?
Re: shelving vinyl toner transfer
2013-06-26 by timgmorris@att.net
Correct, 1/2 Teaspoon Super Washing Soda (Sodium Carbonate) in 8oz (1Cup) of warm water. I usually brush very lightly with a foam brush while developing to
Etch it yourself SMD to DIP adapters Eagle artwork?
2013-06-26 by sheldon_mp_cooper
This one is extremely handy and I d like to find similar examples for other SMD package types if their the Eagle .sch and .brd files are available on-line
Re: where to get prototype enclosures?
2013-06-25 by AlienRelics
Please post this on the Electronics_101 list. I d also suggest looking in the Links section here, and Electronics_101. Steve Greenfield AE7HD
where to get prototype enclosures?
2013-06-24 by smilingcat90254
I lost a link to a company geared towards Maker community. The company gave you choices of material to use, 2D or 3D prototyping enclosure for reasonable
Re: shelving vinyl toner transfer
2013-06-24 by Terry
I am thinking of giving this a try. Could you clarify about the Arm & Hammer Super Washing Soda mixture? Is that 1/2tsp per 1 Cup of water?
Re: shelving vinyl toner transfer
2013-06-24 by timgmorris@att.net
Exactly the same as the initial photoresist method used for the traces. I use another sheet of photoresist (from Digole). Print the pad/cream layers from eagle
Re: [Homebrew_PCBs] Re: shelving vinyl toner transfer
2013-06-22 by Phil@Yahoo
Correct. I find that document protectors or most clear vinyl products make a nice glossy finish and don t stick. Anything made from acetate will stick. No need
Re: [Homebrew_PCBs] Re: shelving vinyl toner transfer
2013-06-22 by James Sleeman
... Make sure you read the comments on that instructables. The guy who wrote the instructions advocates drying the paint first, in short, he s doing it wrong.
Re: [Homebrew_PCBs] Re: shelving vinyl toner transfer
2013-06-21 by Gustavo Villada
Shannon, this one look easy http://www.instructables.com/id/Professional-Home-Brew-PCB-Creating-a-solder-mask/?ALLSTEPS the secret is the UV paint. On Fri, Jun
Re: [Homebrew_PCBs] Re: shelving vinyl toner transfer
2013-06-21 by Shannon Haworth
What technique did you use to prepare the solder mask? Shannon ... [Non-text portions of this message have been removed]
Re: shelving vinyl toner transfer
2013-06-20 by timgmorris@att.net
Sorry, haven t checked the list in a while. My source for the photoresist was http://www.digole.com/index.php?productID=228 The web store appears to be
Re: beginning
2013-06-20 by g3oou@...
There is also the draw on graph paper technique. Full details in the PC Board Menu section at http://www.qsl.net/g3oou/ Regards Bob Bob F Burns G3OOU C Eng,
Re: beginning
2013-06-19 by epa_iii
Oh you are so embedded in the modern age. I would suggest that there is at least one more method, you can draw the circuit by hand on the PC board with a pen
RE: [Homebrew_PCBs] beginning
2013-06-19 by Boman33
Harvey, I think your overview is very good describing the four major PCB making principles: PCB milling Direct inkjet resist printing Toner transfer Photo
Re: [Homebrew_PCBs] beginning
2013-06-18 by Harvey White
... Absolutely, and the difference in density of the print makes it critical for best results. I also didn t go into positive or negative or negative resists.
Latest news on printed circuits
2013-06-18 by Derek
Just read the following. It may be of interest to those that are printing their circuits. Some interesting points.
Re: beginning
2013-06-18 by Stephen Farthing
There are some very good tutorials on Eagle here :- http://www.youtube.com/watch?v=1AXwjZoyNno by Jeremy Blun who is sponsored by Element 14. There is a free
RE: [Homebrew_PCBs] beginning
2013-06-17 by Boman33
Very good advice and it ought to be saved. Maybe add one little clarification: The photo resist method requires an artwork (black and clear transparency) that
Re: [Homebrew_PCBs] beginning
2013-06-17 by Harvey White
... There might be one, I d be ok with the owner or moderator adding this to that FAQ if he wishes. Harvey
Re: [Homebrew_PCBs] beginning
2013-06-17 by Mitch Davis
... Wow good advice Harvey, does this group have some sort of FAQ we can capture this in? Mitch.
Re: [Homebrew_PCBs] beginning
2013-06-17 by Harvey White
... While there are books on the subject, many of them are at the very technical level aimed at industrial processes. Perhaps the best way to answer the
RE: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-16 by Tony Smith
... instructions ... I just noticed some of the dates on the manual are from late 2004, so yes, this machine has been around for a while. Tony
RE: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-16 by Tony Smith
... instructions ... That machine has been around a few years, and often pops up as an example of a simple one to build. The assembly manual is here:
Re: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-16 by lists
In article , ... It looks to me to be the same as the one sold by Farnell
Re: Drilling machines, cheap Ebay routers
2013-06-16 by Stephen Farthing
Guys, Thanks for the magnificent response to my simple questions. Following the thread has taught me a lot.... I was minded to get one of the Zen machines
Re: Drilling machines, cheap Ebay routers
2013-06-15 by Phil@Yahoo
I quite agree. To that I would add flexing. From the single available photo it looks as if the lead screw is attached by a thin piece of metal that might have
Re: Drilling machines, cheap Ebay routers
2013-06-15 by epa_iii
I do not have any particular experience of knowledge of this device except what I have seen here, but ... MDF should not be a problem unless you want to reduce
Re: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-13 by Dave
... Its a lovely machine, but shipping from the US to Europe is $170 - $200 then I will have to pay import duty and VAT..... I think for a complete kit I am
Re: Drilling machines, cheap Ebay routers
2013-06-13 by Robert Nickels
A resolution of .004 is probably pretty good for a particle-board-and-drawer-slide machine. If you want the fun of making your own cartesian robot or just
Re: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-13 by Dave Wade
... THey might be rack rails, but consumer items certainly... (Actually I think when I looked at this a while ago it said drawer rails. ... -- Dave Wade G4UGM
Re: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-12 by Kirk McLoren
aren t those drawer gliders the table is mounted on? ________________________________ From: David To: Homebrew_PCBs@yahoogroups.com Sent:
RE: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-12 by Mark Lerman
I have a reasonably good pcb router, but I sort of agree with Tony about its being a PITA. You have to change bits, the bits break, and most importantly if the
RE: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-12 by Tony Smith
... a ... think ... Don t get too excited by numbers. You could add a micro-stepping driver and increase the resolution 10 fold... Rigidity is about the only
RE: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-12 by Tony Smith
... That one has been around for a while, it s more an educational thing than anything else. Made using MDF (chipboard?) and drawer slides. Tony
Re: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-12 by Vicent Colomar Prats
That one looks a wooden toy, not a serious router. Very expensive for the quality it seems to have. Just my opinion. 2013/6/11 David ...
Re: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-12 by Kirk McLoren
I suspect .1 mm is a step. Or at least half a step. I also suspect its repeatability is much better than its absolute x,y position. I bet the .1 is absolute
Re: [Homebrew_PCBs] beginning
2013-06-12 by Mitch Davis
... Here s how I do it: http://capnstech.blogspot.com/2011/05/playpause-making-pcbs-at-home.html But there are many different ways, and the good folks here
Re: Drilling machines, cheap Ebay routers
2013-06-12 by epa_iii
A Quote from the specs, Resolution 0.1mm on all axes . That s 0.004 . So a 15 mill wide trace could become 23 mills wide or 7 mills wide. I don t think my
beginning
2013-06-11 by gdscientist
I am new to the group. Where do i begin with doing my own printed circuit board? is there any books on the topic ~ryan
Re: Drilling machines, cheap Ebay routers
2013-06-11 by David
Hi All, How about one of these? http://www.rapidonline.com/Tools-Equipment/3-axis-machine-34752 not a bad price! and I m sure can be used with routers and the
Re: [Homebrew_PCBs] Drilling machines, cheap Ebay routers
2013-06-11 by Dave Wade
... only ... USB ... to ... I have a a modern PC with a PCI Express printer port. Even that fails with some software as you can set the address to 3F8. I ended
Re: [Homebrew_PCBs] Drilling machines, cheap Ebay routers
2013-06-11 by Andrew Hakman
Oh, that s good to know! I wondered why there s still tons of cnc stuff that has a parallel interface. I guess it s probably because people made a crapload of
Re: [Homebrew_PCBs] Drilling machines, cheap Ebay routers
2013-06-11 by Stefan Trethan
Yes, well, go and buy a piece of professional electronic test equipment and ask for non-Windows software. Just doesn t happen. Linux support under
Re: [Homebrew_PCBs] Drilling machines, cheap Ebay routers
2013-06-11 by Mitch Davis
On Tue, Jun 11, 2013 at 12:44 PM, Stefan Trethan ... Some of don t use Windows for that very reason. I have devices here which can no longer be used in
Re: [Homebrew_PCBs] Drilling machines, cheap Ebay routers
2013-06-11 by Mitch Davis
... Yeah, then you need wretched software like MACH3 or EMC2 running full-time on a PC to do the real-time stuff. ... You mean like this?
Re: [Homebrew_PCBs] Drilling machines, cheap Ebay routers
2013-06-11 by Stefan Trethan
The notion that USB will be supported long after parallel is a folly! Serial or parallel are far more likely to work in the future than USB. I did not expect
Re: [Homebrew_PCBs] Drilling machines, cheap Ebay routers
2013-06-11 by Andrew Hakman
Most USB to parallel adapters do not do what you think they do. They only work for printers, not general parallel devices. All the CNC machines use parallel
Re: [Homebrew_PCBs] Re: Drilling machines, cheap Ebay routers
2013-06-11 by Mitch Davis
... Ahh that s good to know. The electronic speed control on the Proxxons is also nice. They tend not to bog like the Dremels. Mitch.