FS: New Pen Host Kits! Switch board with Spring Option - Nice!

[jayrob]

Jay,

Been a long time since I have ventured over to these parts of the internet. But with such a crazy 445nm frenzy going on, I just couldn't resist coming back for more! Luckily for me, there is even more options to play around with and the 445's are quite cheap.

With that said, I think I am going to attempt a 445nm pen build with this (HighTechDealZ - 445nm Aixiz Rkcstr Blue 440mA Laser Module). I have one of your pens from a while back that I never finished a build with. But now that you have a option to pre-load a spring and board for $3 extra, I am going to make another attempt (with a Chrome host this time).

I realize driving a Rkcstr and a 445nm diode with only two 10440's isn't the ideal way to go about it, but from what I understand it should still work fairly well. I should still get a pretty decent run time before the power starts dropping, right?

Well, my basic plan of action is to make the Aixiz module case positive by running the positive exposed wire from the Rkcstr driver right up against the outside module case and against the pens internal wall (basically put it between the two pieces, and then 'jam' everything into the pen). Hopefully this will give a good contact between the pens internal wall and the positive wire from the Rkcstr. Before this step of course, I will solder the negative wire from the Rkcstr up to the board/switch. Then after it is all done, stuff it into the pen while trying my best to line up the button properly.

It might be pretty crude, but do you think that would work? I am assuming case positive will be Ok for a 445nm diode. Oh and on the blank board, where does the negative wire from the driver connect to?



P.S. In case this all ends up being too complex for me, would you happen to have any more side button hosts left? I checked the thread and it mentioned DX was out of stock of that host, but I wasn't clear if you personally had any lying around or not. Because I know from experience the side button host was by far the easiest build to do with a standard Rkcstr in a Aixiz module. Everything fits perfectly and is really easy to wire. The 405nm build I did with the Aixiz and side button host still works great to this day.


Anyway, thanks for any help!

I'm no expert with the rkcstr driver but I believe it wires up the same as a DDL driver. And I know that driver well...

Is there any reason it has to be case positive? Sure it can be, but why not make it case negative?

Anyway about your side button question. That host has been discontinued and not available for quite some time. It seems like every time I make a side button kit, the host becomes hard to get...

But for 445 (especially if you want a higher powered one), you want a host that takes an 18650 battery. I have three different 18650 kits that are all good. Take a look at them, there are several options for each build. (click my signature link for the list)

 

[Pontiacg5]

Is there any reason it has to be case positive? Sure it can be, but why not make it case negative?

You could do it that way but you are providing these as case positive :na:

It makes sense to wire these pens as case positive, its a lot easier to make connections that way with the tailcap and spring in the places they are in.

Old pulsars had a spring soldered in the tailcap and a copper plate soldered to the switchboard and they were case negative, but you would need to glue a spring to the tailcap (solder would mess up the paint) then make a plate for the positive terminal on the switchboard.

There is not a whole lot of room to keep the switch centered on the hole, adding a nub or something to the tailcap without replacing the switchboard spring would likely push the switch too far forward.

 

[Bearded_Galaxy]

The problem is AAA batteries can't push enough current to run a blue pen at any more than ~300mW, I've tried a few times. They just don't have the guts...

If you are savy enough you could run two 10440's in parallel in the pen and that would get you about the same capacity as the AAA's but with a much higher current draw.

I *might be* savvy enough, but it wouldn't be easy for anyone to do, I imagine. But that's why I want custom 10880 batteries.

 

[jayrob]

You could do it that way but you are providing these as case positive :na:

It makes sense to wire these pens as case positive, its a lot easier to make connections that way with the tailcap and spring in the places they are in.

Old pulsars had a spring soldered in the tailcap and a copper plate soldered to the switchboard and they were case negative, but you would need to glue a spring to the tailcap (solder would mess up the paint) then make a plate for the positive terminal on the switchboard.

There is not a whole lot of room to keep the switch centered on the hole, adding a nub or something to the tailcap without replacing the switchboard spring would likely push the switch too far forward.

Well I guess it's just what ever your building style is...

All the pens I've ever built were case negative. (except green/IR - case positive diode) I use Energizer e2 lithium primaries, and there is just enough of the negative contact area on the battery to protrude beyond the battery to make good contact to the flat tail cap interior...

So it doesn't really matter where the spring is... (positive end, or negative)

 

[Bearded_Galaxy]

Are these hosts painted on the inside, or bare for contact?

 

[Pontiacg5]

They are bare brass on the inside with a white sleeve in the batery compartment to prevent any accidental contact.

 

[jayrob]

leukoplast, I sent your Pens with switch boards today. (Saturday)

Thanks!

 

[leukoplast]

Just a update for anybody who is interested. I built a 445nm 65mW into this host (the chrome one). And it works great!

See here for more details and lots of pics.
http://laserpointerforums.com/f65/445nm-chrome-leadlight-pen-host-65mw-lots-pics-55026.html

 

[jayrob]

Milos, just to let you know that I sent your chrome and black pens with switch boards today. (Wednesday)

Thanks!

 

[jayrob]

udanis, I'm sending your chrome pen with switch board today. (Thursday)

Dr.Laser, same goes for yours...

Thanks!

 

[jayrob]

RA_pierce, I sent your chrome pen today. (Friday)

Thanks!

 

[jayrob]

pikapfw, I sent your pen host and other items today. (Monday)

Thanks!

 

[jayrob]

udanis, just to let you know that I sent your chrome pens today. (Tuesday)

Thanks!

 

[udanis]

udanis, just to let you know that I sent you chrome pens today. (Tuesday)

Thanks!

Thanks Jay

 

[jayrob]

Your welcome!




Kittamur, I sent your chrome pens today. (Thursday)

Xer0, same goes for your black pen...

Thanks!

 

[Xer0]

Got it

Waiting for the Casioblue from HTD now...