Re: Spray etcher completed
2012-10-11 by Andrew
Andrew, You have done a great job of writing this up, and it is evident that you have done a LOT of experimenting along the way to validate and refine the
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RE: [Homebrew_PCBs] Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-11 by MIKE DURKIN
So .... What is a good printer for this vinyl stuff? 1200x1200 ... more..? I missed a konica minolta 1350w locally for 30$... To: Homebrew_PCBs@yahoogroups.com
Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-11 by dubob4432
here you go -
RE: [Homebrew_PCBs] Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-11 by Jeff Heiss
Where did you find it? Did you place an order? Jeff _____ From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of dubob4432
Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-11 by dubob4432
fwiw i found the same type of vinyl that was in the video for very cheap for a 12x24 piece - less than $5 shipped. already have a laminator so this should be
Re: [Homebrew_PCBs] Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-11 by kabowers@NorthState.net
... It would probably be a real good idea to test it first with a clothes iron set to linen or cotton first. Much easier to clean up than your fuser. If you
RE: [Homebrew_PCBs] Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-11 by Jeff Heiss
How were the results? Jeff _____ From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of brucethehoon Sent: Wednesday, October
Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-11 by dubob4432
Excellent, thanks :)
Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-11 by brucethehoon
I believe that the vinyl I tested with is of the same type that the cricut uses, and I used the highest fuser setting and there was no melting of the vinyl,
Re: recommend a dark room light
2012-10-11 by Ben L
... Yellow Bug Light is what I use, never have had any problems from it. Ben
Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-10 by dubob4432
good idea - will check them out. anybody tried out the ones specifically for the cricut to see if the fuser melts it? bob
RE: [Homebrew_PCBs] Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-10 by Tony Smith
... this out ... if i can t ... Hobby shops - or rather craft shops that sell scrapbooking stuff will have it. You can get in sizes like that for the CriCut
Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-10 by dubob4432
anybody want to sell a foot or 2 by 8 + of vinyl cheap? would like to try this out but since i don t have a vinyl cutter, don t have any vinyl nor use for it
Re: [Homebrew_PCBs] Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-10 by Kevin Byrne
I have read your posts and have one question. I own a Hewlett Packard Lasarjet 4 printer. It is 300dpi or 600dpi. Is this method good at 600dpi or what is
Re: [Homebrew_PCBs] Re: Aluminium base pcb
2012-10-10 by Rogerio F Cunha
Dennis, I really did some confusion to explain what I want to do. I wish to thanks Carl to bring a better definition about this technology (MCPCB). Roger
Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-10 by AlienRelics
I estimate that as 1 cent worth of vinyl, so I don t think I d worry about it. Steve Greenfield AE7HD
Re: [Homebrew_PCBs] Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-10 by Mitch Davis
... That s amazing. I ve tried toner transfer, and gave up. Couldn t get reliable transfer. Mitch.
RE: [Homebrew_PCBs] Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-10 by Andrew Volk
Any sense if the vinyl sheet attached to the paper is reuseable? From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of
Re: Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-10 by AlienRelics
Wow! Many of us have tried using the backing from vinyl and sticker sheets. And I ve made some PCBs using the vinyl cut to the pattern. But I don t think
Fantastic results with cheap sign vinyl as toner transfer medium
2012-10-10 by brucethehoon
I read this the other day: http://dangerousprototypes.com/2012/09/29/pcb-manufacture-using-oracal-vinyl-film-laser-printer/ My results were SIGNIFICANTLY
Re: Aluminium base pcb
2012-10-09 by Dennis
Ah, took a little while to figure out what you were talking about. There s some confusion because almost all the finished boards are nickel plated too. It s a
Re: [Homebrew_PCBs] Aluminium base pcb
2012-10-09 by H. Carl Ott
... MCPCB Metal Core PCB. http://goo.gl/GXctT Not quite sure how the pros do it. If I was trying to fake it, I d etch my led PCB on the thinnest copper clad I
Re: Aluminium base pcb
2012-10-09 by Sebastian
Hey Guys I did this before, use regular candle wax and a good soldering iron. I used a 240w Weller gun. thanks everybody. Sebastian (K4BAC)
Re: [Homebrew_PCBs] Re: Aluminium base pcb
2012-10-09 by lists
In article , ... Seems to me you would solder to a smaller copper slug and then bolt that to a larger heatsink in the normal way. --
Re: [Homebrew_PCBs] Re: Aluminium base pcb
2012-10-08 by Rogerio F Cunha
The aluminium PCB is a kind of PCB where the aluminium takes place of the FRF-4. I think it receives a thin insulation layer and a conductive track over that.
Re: Aluminium base pcb
2012-10-08 by John
I don t understand what you are trying to do but I do have experience soldering aluminum. I never use anything other than the flux that I normlly use for
Re: Aluminium base pcb
2012-10-08 by Shawn
If you are concerned about thermal dissipation, use solid copper instead. It has better thermal conductivity than aluminum and you can solder to boot. But
Re: Spray etcher completed
2012-10-08 by Daniel
... Do you have a link or image about it? I understand that you consider that would be needed exactly the opposite impeller that I have proposed?
Re: [Homebrew_PCBs] Re: recommend a dark room light
2012-10-07 by John
I tried exposing some presensitized pcb using 100W household mains bulb 2 feet away from the board for 15 minutes. I swished the pcb in developer for 5
Re: recommend a dark room light
2012-10-07 by D. Gareth Hughes
Hello, The majority of Photoresist materials both positive and nagative are very much resistant to the usual artificial lighting, they require a specific
RE: [Homebrew_PCBs] Aluminium base pcb
2012-10-07 by Nuno T.
Hi, Have no idea if what you ask is possible. Have you considered using a common FR4 copper PCB with common Al/Cu heat sinks bolted/screwed on the sides of the
Re: [Homebrew_PCBs] recommend a dark room light
2012-10-07 by kabowers@NorthState.net
... Take a look at red or yellow fluorescent tubes with an inch or so of the ends wrapped with black electrical tape (the coating may not extend all the way to
Aluminium base pcb
2012-10-07 by Rogerio F Cunha
Hi list, Hello List, Anyone has a idea how to produce a aluminium pcb over a virgin aluminum board? I m looking a way to home brew a pcb to solder some power
Re: recommend a dark room light
2012-10-07 by jpanhalt
Hi Jeff, I use a Bright Lab Jr. 11W red bulb (#35110). They are quite expensive today, about $19 list: http://www.cpmdelta1.com/safelights.htm I actually
Re: [Homebrew_PCBs] recommend a dark room light
2012-10-07 by Howard Chester
... From: Jeff Heiss Subject: [Homebrew_PCBs] recommend a dark room light To: Homebrew_PCBs@yahoogroups.com Date: Sunday, 7 October,
RE: [Homebrew_PCBs] recommend a dark room light
2012-10-07 by Jeff Heiss
Correct, I am looking for what a safely light that won t affect photoresist (dry film photoresist in my case). Maybe working in dim light is good enough? I
Re: [Homebrew_PCBs] recommend a dark room light
2012-10-07 by John
Are you wanting a safety light that wont affect the photo-resist or a light to expose the photo-resist? The ready coated presensitized boards are nowhere near
Re: [Homebrew_PCBs] recommend a dark room light
2012-10-07 by Spencer W
You can use those yellow lights that are used for bugs Sent from my iPhone ... [Non-text portions of this message have been removed]
[Homebrew_PCBs] recommend a dark room light
2012-10-07 by Jeff Heiss
I am doing some tests with dry film photoresist. Can you guys recommend a bulb that can be used for a dark room light? Are there any simple methods to using
Re: Copper Clad Board Info
2012-10-05 by adtranengineer
You also need to consider voltage drop if you are planning on 500mA. Personally, I would use a 50 mil trace for 500mA if you are talking about a power supply
Re: [Homebrew_PCBs] Re: Copper Clad Board Info
2012-10-04 by Kevin Byrne
http://www.extremecircuits.net/ This is a link to the web site of the calculator that I used. I am useing Eagle and ExpressSCH, and ExpressPCB and need to
Re: [Homebrew_PCBs] Re: Copper Clad Board Info
2012-10-04 by Leon Heller
... I checked it with the Pulsonix track width calculator, and it looks OK. For 1 oz copper, an 8 mil track with 500 mA going through it will heat up by 3.9
Re: [Homebrew_PCBs] Re: Copper Clad Board Info
2012-10-04 by Derek
Do a search on Google with the terms pcb trace width and current . Select images and use the charts that have been in place for decades. A good picture is at
Re: [Homebrew_PCBs] Re: Copper Clad Board Info
2012-10-04 by Boots Hughston
I would not run 500ma through a 8/1000 trace. It will not handle it for long. Boots-2b1 Sent from my iPhone ... [Non-text portions of this message have been
Re: [Homebrew_PCBs] Re: Copper Clad Board Info
2012-10-04 by Kevin Byrne
Thanks for the math. It is a study I struggle with. The web site I talked about has a way of putting oz formula into the calculator I did not know about.
Re: [Homebrew_PCBs] Re: Copper Clad Board Info
2012-10-04 by John Anhalt
35 microns = 35x10^-3 mm (35X10^-3mm) ÷ (25.4mm/in) = 1.38X10^-3 inch = 1.38 mil John ... From: kbyrne10 To: Homebrew_PCBs@yahoogroups.com Sent: Thursday,
Re: Copper Clad Board Info
2012-10-04 by kbyrne10
Thanks for the help. Is there a good conversion calculator site available as I suffer thru math?
Re: [Homebrew_PCBs] Copper Clad Board Info
2012-10-04 by Leon Heller
... Copper thickness for most board material available to hobbyists is 1 oz per sq. ft. which equates to 35 microns. Leon -- Leon Heller G1HSM
Copper Clad Board Info
2012-10-04 by kbyrne10
I know of a trace calculator on a web site for determining width s of traces but I need a question answered. If I buy stock PCB boards what is the thickness of
Re: Spray etcher completed
2012-10-04 by cunningfellow
... I may try play with a 3D printer to improve the impeller. I would like to try an axial inflow radial out.