Homebrew PCBs

from a laser, I would like it a little darker but its working.  I did find that the higher priced hp toner cartridges are darker than the refills.  A toner cartridge for the laser is about $180!
 
you tube video of... Making PCB for the FTDI Vinculum 2 Chip 
http://youtu.be/qK6DKbzm024
If you interested in my youtube videos please subscribe.  


>________________________________
>From: John Dammeyer <johnd@...>
>To: Homebrew_PCBs@yahoogroups.com
>Sent: Tuesday, October 11, 2011 8:39 AM
>Subject: RE: [Homebrew_PCBs] The case for crowd-sourced PCB materials
>
>
> 
>   
> 
>Tom,
>
>What sort of material are you printing onto?  It looks like velum in the 
>video.  Is it dark enough as printed from the laser printer or are you 
>using an inkjet?
>
>John
>
>Automation Artisans Inc.
>http://www.autoartisans.com/ELS/
>Ph. 1 250 544 4950
>
>-----Original Message-----
>From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] 
>On Behalf Of Tom Biery
>Sent: Tuesday, October 11, 2011 6:54 AM
>To: Homebrew_PCBs@yahoogroups.com
>Subject: Re: [Homebrew_PCBs] The case for crowd-sourced PCB materials
>
>Larry,  I have been getting my presensitized PCB material from the company 
>Circuit Specialists I believe they are located in Arizona, there material 
>is fresh and is delivered in about one week.  Their website is .... 
>http://www.circuitspecialists.com/
>Usually I get the 4.6" x 6.6" size double sided boards 
>http://www.circuitspecialists.com/gd114.html and then trim them down to 
>3.3"'4.6" to match the size that eagle software allows.  Are you offereing 
>boards like that?
>I use the UV exposure process and it seems to be working for me alright 
>here is a you tube video of... Making PCB for the FTDI Vinculum 2 Chip
>http://youtu.be/qK6DKbzm024
>If you interested in my youtube videos please subscribe.  If you are going 
>to make up a bunch of double sided positive photoresist boards I would 
>give some a try.  Let me know.  Tom
>
>From: Larry Battraw <lbattraw@... <mailto:lbattraw%40gmail.com> >
>>To: homebrew_pcbs <Homebrew_PCBs@yahoogroups.com 
>><mailto:Homebrew_PCBs%40yahoogroups.com> >
>>Sent: Tuesday, October 11, 2011 1:32 AM
>>Subject: [Homebrew_PCBs] The case for crowd-sourced PCB materials
>>
>>
>>
>>Hi All,
>>
>>I've been lurking on this list for some time and seen a lot of different
>>takes on making PCBs, whether it's toner-transfer, direct-print via
>>last/inkjet, or UV-exposed resist (And a few stranger ideas). One thing I
>>have noticed is that it is sometimes difficult or impossible to obtain 
>>the
>>raw materials for our projects. In some cases (Dry film resists) it 
>>either
>>takes forever (2 weeks to over a 3 months!) to get some from Hong Kong or
>>the Czech Republic (via eBay), or you have to buy a lot at one time 
>>(Think'n
>>Tinker 100-foot rolls for example, at $150+ w/mandatory express 
>>shipping).
>>There are exceptions, but finding them and having any idea of how "fresh"
>>the film is (Which is important to get reasonable results) is 
>>problematic.
>>A couple years ago a company called Genesis MT sold a great product by 
>>the
>>name of AQ-3000 water-based photoresist. It worked very well, was very
>>reasonable for the amount you got for the price, and was available via
>>eBay. Recently I found they had been acquired by another "professional
>>services"-type company that requires large, company purchases of anything
>>(i.e. ask for a quote, and no way to buy electronically). It is now
>>impossible to get any of this great resist, the only water-based 
>>photoresist
>>around. I don't consider the VOC-based resists as viable for use due to
>>health concerns.
>>
>>What I propose is that we as a group of hobbyists provide our own 
>>materials,
>>where some of us will volunteer to be a source for a particular material, 
>>in
>>this case photo-imaging materials. I know there has been a lot of
>>experimentation with direct/transfer tech but for repeatable, 
>>high-quality
>>boards you really can't beat photoresist-based boards. I'm sure some 
>>people
>>will differ with me but I've read too much about problems with board
>>coatings, pre/post-heating, different inks (Sometimes very expensive), 
>>and
>>the challenges modifying inkjet printers to be very interested, 
>>especially
>>after I ruined a perfectly good printer trying it myself :-)
>>
>>Naturally I am volunteering for the dry film photoresist, since I have
>>already placed an order which should be here in a couple days. I'd like 
>>to
>>do the same for the Genesis AQ3000, although I have to find out the 
>>minimum
>>order quantity (Apparently they make up a fresh batch for each order) and
>>available payment methods. I'd like to think that we can use enough of 
>>the
>>purchased products to have them avoid going bad (Shelf life for AQ3000 is 
>>6
>>months, similar for dry-film). I would suggest charging actual cost plus 
>>a
>>small surcharge to cover gas and time spent (Maybe $3.00 per order?). I
>>want to make it possible for us to use high-quality products without a 
>>lot
>>of delay or uncertainty/experimentation in regards to product quality. 
>>The
>>cost would include cost of postage plus mailing materials (Padded 
>>envelope
>>or plastic bottle+box for AQ3000). If it's popular enough, I could offer
>>additional things like drill bits, PCB blanks, etc.
>>
>>I am certainly not adverse to having someone else take all the "business"
>>from me, as the whole point of this exercise is to provide the materials 
>>at
>>near-cost, quickly. However, since nobody else has suggested this (That I
>>can remember) I figured I could at least start the process. I have to add
>>some disclaimers here: I reserve the right to ship within 2-3 business 
>>days
>>of a prepaid order, and if there are unusual restrictions on shipping 
>>items
>>there (i.e. countries that have export regulations for the USA) I also 
>>will
>>not even try to ship an order. Likewise, if I find out after the order 
>>has
>>been placed it's going to be a lot of hassle to ship to I reserve the 
>>right
>>to refuse/refund orders. Ditto for people who piss me off, sorry, I just
>>won't work with people who can't be polite. If there are unusual
>>circumstances like having a package refused and returned I also will 
>>charge
>>a fee based on the time spent plus shipping/materials (Assuming the PCB
>>materials can be re-used and are not damaged). And finally, I reserve the
>>right to halt the service at any time, refunding any outstanding orders.
>>
>>This whole idea is an experiment in supply and demand and so I apologize 
>>for
>>all the disclaimers. I don't want to be sued or even given a bad 
>>reputation
>>because I had a package returned from Elbonia after being opened and
>>damaged, and the person is upset.
>>
>>I apologize for the length of this email, but I'd like to gauge the 
>>interest
>>levels (And potential orders) from people in the group and elsewhere.
>>Please email me if you're interested, and what you would like to see
>>offered. I would probably accept PayPal (Yes, they aren't wonderful but
>>they're big and fairly reliable) for payment. Materials could either be
>>ordered direct from me or I could post auctions on eBay, but I'm more
>>interested in serving the community we have here rather than the entire
>>world. I have a day job and this is just a way to benefit a group of
>>like-minded people, so it can't be too much of a hassle or I will need to
>>either put a stop to it or raise prices. It may be necessary to go the 
>>eBay
>>route just to avoid having materials expire but I'd like to avoid it. Let
>>me know!
>>
>>Kind regards-
>>Larry Battraw
>>
>>[Non-text portions of this message have been removed]
>>
>>
>>
>>
>>
>
>[Non-text portions of this message have been removed]
>
>[Non-text portions of this message have been removed]
>
>   
>      
>
>

[Non-text portions of this message have been removed]