Missing components model codes on schematic sheets.

[luckcolors]

Hello. I was looking at the mini-v1.14-macrofab-rtg.sch and some components names are missing(i mean the part code ): -laser -motor

Also it would be great if you could provide description (or name) of what goes on the following pins:

Schematic sheet 2: -TP3 -TP4 -TP5 -TP6

Schematic sheet 3: -TP2

Schematic sheet 4: -3V VUSB -SWCLK NRST -SWDIO GND Thanks in advance. :+1:

[tonyarkles]

TPs are test points. 3V is the 3V rail, VUSB is the USB rail. SWCLK/SWDIO/NRST/GND are the standard ARM Cortex-M SWD debugging connections (similar to JTAG, but fewer wires).

No parts to be mounted for any of these.

On Fri, May 20, 2016 at 1:15 PM, luckcolors notifications@github.com wrote:

Hello. I was looking at the mini-v1.14-macrofab-rtg.sch and some components names are missing(i mean the part code ): -laser -motor

Also it would be great if you could provide description (or name) of what goes on the following pins:

Schematic sheet 2: -TP3 -TP4 -TP5 -TP6

Schematic sheet 3: -TP2

Schematic sheet 4: -3V VUSB -SWCLK NRST -SWDIO GND Thanks in advance. 👍

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[luckcolors]

Ok thanks @tonyarkles. Then the only thing that's really missing is the motor and laser component code.

[tonyarkles]

Motor? There is no motor... Are you looking at the ferrite bead maybe?

I have no clue what the laser part number is. @Rylan?

On May 20, 2016, at 3:46 PM, luckcolors notifications@github.com wrote:

Ok thanks @tonyarkles. Then the only thing that's really missing is the motor and laser component code.

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[luckcolors]

Ah yeah. Sorry it hough there was a motor there. :P So then what's really missing is the laser.

[luckcolors]

Also resistance value for R42 is missing.

[tonyarkles]

I'm doing some yard work, but if I recall R42 was an escape hatch in case the modification between v1.13 and v1.14 didn't work. I think it's a no-place but I'll double check when I'm back inside.

On May 21, 2016, at 7:47 AM, luckcolors notifications@github.com wrote:

Also resistance value for R42 is missing.

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[luckcolors]

so any idea on the laser? For sure it's ultraviolet but with what potency and Voltage would it be?

[luckcolors]

The only thing i found in the sch file is the value attached to the LD1 component. mpn 3 x (0552-2-15-15-11-27-10-0) Which appears to be this: http://www.digikey.com/product-detail/en/mill-max-manufacturing-corp/0552-2-15-15-11-27-10-0/ED90096-ND/947104. It's a pin socket.(Probably a placeholder?)

[tonyarkles]

Totally a placeholder. That's a carry-over from the original analog board. We were using a socket on the boards, and then a laser diode, but I wasn't responsible for those as far as I recall.

In general, any UV laser diode will work, so long as Vf <= around 6V, and If is less than about 200mA. The circuit is pretty robust against different diode parameters. It's a constant current driver, so you tell it (through the firmware) how much current you want to go through the diode, and it adjusts everything to make sure that much current is running through the laser.

On Tue, May 24, 2016 at 3:41 PM, luckcolors notifications@github.com wrote:

The only thing i found in the sch file is the value attached to the LD1 component. mpn 3 x (0552-2-15-15-11-27-10-0) Which appears to be this: http://www.digikey.com/product-detail/en/mill-max-manufacturing-corp/0552-2-15-15-11-27-10-0/ED90096-ND/947104 http://link. It's a pin socket.(Probably a placeholder?)

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[luckcolors]

Ok. So one last detail: must the laser light wavelenght be atleast less than 380nm(ultrviolet light boundary) or it can be more (like 405nm which is violet light check wikipedia ultraviolet page for more info)?

[tonyarkles]

I'm pretty sure 405 is A-OK.

The socket was an LD254-3P-24 from jccherry.com. http://jccherry.com/products/Laser_Diode_Sockets/Laser_Diode_Socket_2.54mm_pitch.pdf#view=fitV, 100

You don't have to use a socket, but the laser diodes are pretty sensitive and tricky to solder without cooking it. I'm pretty sure but not 100% sure that these sockets will work too if jccherry doesn't want to sell one-offs: http://www.aixiz.com/store/product_info.php/cPath/70/products_id/454/osCsid/c2d8dafd1f5eaab5671f0e8ee4d64784

You can probably also find an appropriate diode from aixiz

On Wed, May 25, 2016 at 3:05 AM, luckcolors notifications@github.com wrote:

Ok. So one last detail: must the laser light wavelenght be atleast less than 380nm(ultrviolet light boundary) or it can be more (like 405nm which is violet light check wikipedia ultraviolet for more info).

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