I dunno about all that. Generating Gerbers is definitely the tried and true way. Even Gerbers leave room for error, BRD files leave a lot of room for error.
Someone asked for a single mode single 7135 10mm driver…that is why I made that one…can’t find the discussion though
With the turnover these days it’s probably on page 20 by now.
I dunno about all that. Generating Gerbers is definitely the tried and true way. Even Gerbers leave room for error, BRD files leave a lot of room for error.
As long as one isn’t using gerbers because oshpark is refusing the brd due to a ton of design errors. Most fabs don’t even accept brds, its supposed to be helpful that oshpark does. The brd isn’t sent to the fab, they generate gerbers with eagle 6.6.
We are currently processing uploaded Eagle BRD files with Eagle CAD version 6.6, and have confirmed compatibility with all Eagle versions up to 7.1.
I got answer from oshpark and its like wight has said it before, fab messed it up, their files look good. No big problem anyway but good to know it wasn’t my fault.
I used gerberfiles before for itead but I like how easy it is to just upload the brd file and see a preview…
I got answer from oshpark and its like wight has said it before, fab messed it up, their files look good. No big problem anyway but good to know it wasn’t my fault.
I used gerberfiles before for itead but I like how easy it is to just upload the brd file and see a preview…
gerbers in a zip do the same thing
Get a program called grbv and it will generate a 3D image of your board as well, you can even change the default skin to the oshpark one and see the way your design will look as well
Like RMM’s Moonlight Special V2 8x 7135
Top:
Bottom:
P.S. RMM when you zip the files, don’t include the revisions in the zip…only the files with capitol letter extensions
OSH Park seems to have added a cart system.
Lol. Yeah, too many revisions...too little time!
I tried to run that 3D rendering program but I don't have OpenGL 3.0, so it was a no go.
Moonlight Special V2 8x7135 Driver
This driver was originally an idea I had when I got sick of building 16x7135 drivers, then having the moonlight be high, unstable, or not work at all. After my failed attempts, JonnyC tweaked the STAR firmware for dual output. I built quite a few cutting traces and using a jumper on the normal 105C boards, then Mattaus helped me create the first version of this board. This is his board, with a few tweaks, and a nod to all of those who have inspired me and helped me down this path. I couldn’t have done it without the help from many here! Thank you all.
Please note that this exact revision is untested, although I am 99% certain it will work.
How does that work? I see a second diode. Does that help the moonlight mode? Or is that the Zener I have read about?
Moonlight is pwm on a separate pin to only a single 7135.
I see a second diode. Does that help the moonlight mode? Or is that the Zener I have read about?
The second diode marked "Z" is for an optional zener diode, for multi-cell use with multiple LEDs in series or an MT-G2.
Thanks Halo and RMM.
The circuit is hard to see in that sort of picture, but I did begin to see what the diode is for.
Thanks Halo and RMM.
The circuit is hard to see in that sort of picture, but I did begin to see what the diode is for.
The Zener will dump excess voltage beyond their breakdown voltage (normal diodes typically only conduct forward). If you put 5v on the “side with a line” of a 4.3v Zener it will attempt to dump 0.7v. Assuming you have a strong 5v source, the Zener will promptly self-destruct. Thus we use a current limiting resistor between Vsupply and the Zener’s “side with a line”. The other side of the Zener connects to GND.
In order to get your 4.3v in this case you must connect whatever you want to power with 4.3v to GND and to the “line side” (Cathode) of the Zener, eg between the Zener and the limiting resistor. If you test between the other side of the limiting resistor and GND, you’ll find that remains at 5v (or whatever the input voltage is).
Skimming the pictures here may help:
http://www.evilmadscientist.com/2012/basics-introduction-to-zener-diodes/
Many of you experienced Eagle gurus may already know this, but I've found Eagle's built in ULP "cmd-draw" to be especially useful. It can draw wires, polygons, move items into locations, or place vias in circular or even elliptical patterns. It will even name the vias for you, so you don't have to go around and name 12 vias "GND".
I was placing them manually before I found this, which requires forethought, attention to detail, math, and geometry. These are all things that I'm sure Wight loves to do, but I'm not very good at any of them!
Many of you experienced Eagle gurus may already know this, but I’ve found Eagle’s built in ULP “cmd-draw” to be especially useful. It can draw wires, polygons, move items into locations, or place vias in circular or even elliptical patterns. It will even name the vias for you, so you don’t have to go around and name 12 vias “GND”.
I was placing them manually before I found this, which requires forethought, attention to detail, math, and geometry. These are all things that I’m sure Wight loves to do, but I’m not very good at any of them!
This is definitely better than what I was doing. I knew that ULPs must already exist to help with things of this nature, but I didn’t go look for them. To my own detriment, apparently! Thanks for sharing RMM.
And don’t worry, there’s still plenty of math and geometry for me to do with the things this ULP does not cover. Triangles, for example, and various shapes intersecting one another…
Single sided amc7135 test board v010 (LEDs on top) for testing individual chips -by WarHawk-AVG and wight.
untested
Discussion thread
I think you may now remove the “untested” label RBD.
Doh! As if I read my own thread.
I added a few Oshpark PCBs I'm not ever going to use -- free for someone who will use them.
A few Knucklehead V3.0 boards, attiny13a programming boards, and 7135 test boards.
Here's a quick and dirty board for testing the Maxim MAX16820 Buck IC. 3 for $1.35. You could also use this to piggyback this IC onto another buck driver if you have enough space. If you do this, try and keep the DRV and CSN connections as short as possible.
Many of you experienced Eagle gurus may already know this, but I’ve found Eagle’s built in ULP “cmd-draw” to be especially useful. It can draw wires, polygons, move items into locations, or place vias in circular or even elliptical patterns. It will even name the vias for you, so you don’t have to go around and name 12 vias “GND”.
I was placing them manually before I found this, which requires forethought, attention to detail, math, and geometry. These are all things that I’m sure Wight loves to do, but I’m not very good at any of them!
Thanks for this. Just saved me quite a lot of time!