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Homebrew PCBs

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Re: [Homebrew_PCBs] Re: UV LED box

2008-06-11 by DJ Delorie

... Yeah, I thought of that but didn t have any handy, and had to use an inch drill so it s not exactly the right size. I still have the option of doing a PCB

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Re: [Homebrew_PCBs] Doublesided PCB

2008-06-11 by Herbert E. Plett

of course.... just do the same thing on both sides! depending on your resolution, alignment may be more or less critical. the best is a light box, but a large

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RE: [Homebrew_PCBs] Re: UV LED box

2008-06-11 by Bertho Boman

Maybe you want to try a sheet of plastic, PVC, about 5-6mm thick and drill 5mm holes. The LEDs should line up just about perfectly if you use a drill press

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Re: [Homebrew_PCBs] Re: UV LED box

2008-06-11 by DJ Delorie

... Not by much, and that was to spread them out to fit the 9x12 area I wanted to cover. The problem isn t the pattern (although a triangular grid is much

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Re: [Homebrew_PCBs] UV LED box

2008-06-11 by DJ Delorie

... About 1.2 inches. Just enough to solder the leads together :-) That means 99 LEDs in a 9x12 inch area, or 11 strings of 9 for the power supply. The

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How to mask bottom layer from etching?

2008-06-11 by lnphoenix

I m about to make a microwave test PCB for the first time, using tone transfer. The PCB size is about 4 x4 with the bottom layer is served as a ground plane.

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Re: [Homebrew_PCBs] UV LED box

2008-06-11 by Adam Seychell

... Nice work Whats the grid pitch ? Whats the LED brand/model ? I m interested in your exposure times. I get 60 seconds with negative dry film, grid density

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Re: UV LED box

2008-06-11 by warrenbrayshaw

I note that your LEDs are laid out with overlap in one axis but none in the other. I suggest that you need to have all neighbouring LEDs overlap the same

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UV LED box

2008-06-11 by DJ Delorie

Just finished wiring mine up... http://www.delorie.com/pcb/uvled/ I layered the LEDs between two sheets of plywood hoping they d keep things aligned, but not

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Doublesided PCB

2008-06-10 by John Michaud

A question, I have been looking into Press&Peel PCB transfer film - is there anyway to use this to create a double sided PCB? Thanks, John [Non-text portions

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Exposure timer

2008-06-10 by Leon

Here s the photo of my prototype: http://www.leonheller.com/Designs/Exposure%20Timer.jpg The adapter is for the Microchip ICD 2, the 16F690 chip I m using

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Exposure timer

2008-06-10 by Leon

I ve just got the 7-segment displays working, plugged into the PICkit 2. I had a tiny break in the track to the a segments that I d missed, and had to repair.

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Re: Searching for this kind of pcb

2008-06-10 by drpain1313

... according to ... If you want to etch them yourself, perhaps LaserPCBs would be right for the task: www.laserpcb.com (Disclaimer: I am the owner of

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Searching for this kind of pcb

2008-06-10 by Jerome Decock

Hello, I am searching the name of this kind of pcb that they use for computer keyboards, it is flexible and transparent with brown/grey traces. I am searching

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Re: HELP: UV Light box

2008-06-09 by Howard

... uses ... etc. ... Hi Leon Would this design be able to use single side board, as iam not up to speed on making double side one s ?? As your uesing two

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Re: HELP: UV Light box

2008-06-08 by electrophilip

I am using an old flatbed scanner as a light box at the moment and have a Jaycar kit timer. It has adjustable start stop times. I have wired a buzzer across

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Re: Gerber view print panelize

2008-06-08 by Bob_xyz

... Yeah, the only reason I can think of for using a node lock is that they wanted to maintain source code consistency with their higher-end products. (And

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Re: HELP: UV Light box

2008-06-08 by Leon Heller

I m in the process of making the display PCB for my prototype. It uses two 7-segment LED displays and will plug into the little PCB supplied with the PICkit 2,

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Re: Gerber view print panelize

2008-06-08 by Lee Studley

Thanks Bob, That looks perfect. I just tried the free viewer and it feels good, so I ll get the $49 version. The only drawback is the node locking license. I

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Re: [Homebrew_PCBs] HELP: UV Light box

2008-06-08 by Bill Maxwell

Might be worth a look ar www.siliconchip.com.au. They published a light box design from a fellow Tasmanian. He included a PIC timer pcb and code with the

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Re: [Homebrew_PCBs] HELP: UV Light box

2008-06-07 by Matthew Smith

Quoth Howard at 2008-06-07 23:51... ... Mine does more than that - when it finishes, the display says Enjoy Your Meal! . It is, as you may have guessed, the

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Re: HELP: UV Light box

2008-06-07 by warrenbrayshaw

How about an electronic digital timer. The kind you plug into a wall outlet having programmed it to turn on , say a table lamp, to convince the burglars

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Re: Gerber view print panelize

2008-06-07 by Bob_xyz

... If your definition of low cost extends to $49, there s a very good Gerber editor called ViewMasterEZ available for download from the site:

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