Ammunition & Hand Loading > Cartridge and Shotshell reloading
Copper Plating
unfy:
from the 13v power supply, the regulator gets a little warm with just a min or two (even with heatsink).
but, i was at 1.5v around 0.13 amp with just a single bullet... and it did start plating.
i'll dig around for a high powered 5v power supply and see what i come up with etc.
so far so good.
i really do like the the model train controller idea, really i do!!! inexpensive, easy to get ahold of, and might work just fine!
I'm flooding the recent posts list, so i'll edit instead....
added a pot (thing with a knob) to be able to easily adjust output voltage.... works just fine.
i dunno if having more amps on the power source side would help or not... i tried increasing the surface area of what i was plating and current draw went up... so... whatever. i hate analog electronic stuff :P
the power source circuit i have is cheap to make (assuming you already have a dc power source like a wall wart that can push an amp or more), but will steal my friend's train controller anyway to see if current draw goes up and if it can indeed be used as a power source to begin with. i have no doubt that it will indeed work.
its late. depending on what goes on tomorrow i'll either do a long test of my power supply, or grab the train controller, or just be content with progress thus far :P
edit again: koz has confirmed his train transformer / controller will work.
doing some research, looks like it needs to be a DCC style compatible.
a quote from a transformer thingie description:
Appropriate for N, HO, and on 30 scale trains. DCC compatible. Includes speed control knob. Includes direction control switch.
unfy:
made a bunch of lead ingots tonight from wheel weights.
did grab a small electronics prototype board to move my variable dc voltage supply off of the bread board and to something more perm.
while i was at radio shack, priced everything for the regulator stuff.... so can get that posted later as well.
unfy:
^^^^
The DC <> DC power voltage regulator. input goes into one of the blue blocks, output comes out the other. whee! i'll draw up a schematic later as well as a radio shack shopping list (cheap).
have aquarium heater
have fresh lead
will prolly try plating tomorrow.
unfy:
no plating attempts tonight.
cold weather + warm kitties = hibernation time hehe. slept in way too late.
Since I just placed an order for the low RPM motor i'll be using to turn the basket ..... this is the shopping list for the voltage regulator:
LM317T
* This is the voltage regulator itself
** the LM317 can handle 1.2 - 37v, up to 1.5 amp
** higher amp regulators can be had and are generally drop in replacements
* $1.59
** https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_898800_-1
** this is a specific part thing rather than 'pulled from left overs', and is generally suggested
* $0.35
** https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_23579_-1
** this is the 'swept off the floor' version
10uf Tant caps
* cleans up input and output voltage
* $0.49 each x 2 = $0.98 total
* https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_94060_-1
** ya might be able to get away with some 100uf electrolytics.. but ... tants are suggested.
100 ohm resistor
* half of the voltage divider logic
* You're technically supposed to use 1% or better, but i'm having no probs with generic 5%'s
** Sadly, buying a single resistor is about impossible. So, $3 gets you 100 of them
** https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_690620_-1
* For the thin metal film 1%'s, they're on sale right now. Ya can't get 100 ohm, but ya can do 150ohm (which is fine since we'll be using a pot to adjust voltage)
** $1.00 gets 100 of them
** https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2080497_-1
Potentionmeter
* this is the thing that will let you control the output voltage
* You'll want a 1k pot probably. At 1k, you get 1.25 volts out of the regular (assuming 100ohm other resistor above). For smaller numbers, your voltage will increase (so a pot that does 0-1k is ideal).
* $1.19
* https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_29050_-1
** this is largely a choice for you to make on your own concerning ease of working with, cosmetics, etc. you want to stick with between 1k and 5k pots tho
** and if you wanna be super fine controlled about voltage output, a trimmer would be great.. but.. .ya don't need that.
To-220 heatsink
* the regulator will get warm to hot, you'll have to cool it (passively should be fine)
* Two options, i dunno how much cooling it'll actually require.
* $0.29
** https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_70658_-1
** smallerish heatsink.
* $0.99
** https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_70658_-1
** larger heat sink... dunno if it's necessary
You'll also want some tiny screws and nuts to attack the heatsink to the regulator. Dunno if any kind of heatsink grease / compound is necessary... probably isn't really requied
Prototyping board
* you'll want somethign to attach all of this to...
* jameco, oddly, has a fairly crappy selection. i chose their bread-board like thing, which seems quite cool although it lacks mounting holes
** $4.95
** https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2125042_-1
* radioshack has the board i used in my photo above...
* something more traditional from jameco (with power/ground busses)
** $6.95
** https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_105102_-1
You'll need some kind of wire to connect all this together. There's the enamel coated wire (ya hit with soldering iron and it melts the enamel away.... or... in my case with the photo thing - i just used some spare copper hangers >:D
Terminal Blocks
* gotta have some way to connect other things to your board, no ?
* take a look through their terminal block list. It's all about finding something you want
** home -> inter connects -> terminal blocks -> terminal blocks
* They also have what i'm using:
** $0.29 * 2 = $0.58
** https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2094506_-1
Totals for the above:
* $1.59 regulator
* $0.98 caps
* $3.00 resistors (100 of them, sigh)
* $1.19 pot
* $0.99 big heatsink (just for worst case)
* $6.95 prototyping board
* $0.58 terminal blocks
-------------------------------------
$15.28 total cost
Wire: i had already, whatever.
I had a lot of these parts already since it's my day job as well.... annnnnnddd... you still have to provide an already DC power source (preferably 5v or higher). And doesn't include a 'project enclosure' either. I can prolly build these things fairly cheap in comparison to $15, too.
Just about all of this can be had from radio shack as well.... prices coming soon.
unfy:
Radio shack:
10uf Tant capacitors: $1.89 each (ouch!)
* can be found locally sometimes, might have to hit a few different stores
* online similar product: http://www.radioshack.com/product/index.jsp?productId=12477093
100ohm resistors: $1.19 for a pack of 5-10
* online similar: http://www.radioshack.com/product/index.jsp?productId=2062315
lm317t regulator: $2.99
* online: http://www.radioshack.com/product/index.jsp?productId=2062601
5k ohm pot: $3.19
* online: http://www.radioshack.com/product/index.jsp?productId=2102789
to-220 heatsink: $1.69
* online http://www.radioshack.com/product/index.jsp?productId=2102856
project board: $2.19 (the one i used)
* online: http://www.radioshack.com/product/index.jsp?productId=2102845
terminal blocks: $2.39
* online: http://www.radioshack.com/product/index.jsp?productId=2102861
Totals:
* $3.78 - caps
* $1.19 - resistors
* $2.99 - regulator
* $3.19 - pot
* $1.69 - heatsink
* $2.19 - project board
* $2.39 - terminal blocks
-----------------------------------
$17.42 -- and you shouldn't need to to pay shipping :)
Again - you'll need to supply wire and screw / nut for mounting heatsink to regulator.
edit: most of this should be able to be found locally, btw. might have to hit up a few different stores though.
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