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Old 09-26-2009, 07:45 AM #1
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Talking Rkcstr Groove playing up.. need help! ***ALL FIXED***

**ALL FIXED NEVERMIND**

ok.. well I bought a "kit" from a member here and it had (i think) an older version of the Rkcstr groove.. I made up a "dummy load" and to my suprise I was getting wierd readings.. basically the pot will reduce the current down to around 133ma then kick back up to ~400ma+. I can not get it to go below 130ma. I have read the Rkcstr groove manual and it says something along the lines of.. if you reduce the voltage input you will get lower currents, but I also read on the forum you need ~12v input for use with a bluray diode..

I have also spoken with another member on the forum about this issue and he thinks the pot could be broken..

I'm using the MXDL "kit" I bought, which uses 3x 3.6v batteries which puts out around 12.5v.

So basically these are the things I want to know

1) can I get lower current if I use lower voltage (is that even possible?)
2) can the pot on the groove be replaced? (if so, part no. please )
3) is there any thing I can do physically to drop the current (diode, resistors ect.. if so what combination will I need to drop around 20-30ma)


If it is not worth fixing or trying to work this out is there any one willing to swap their driver for mine.. mine will only do from 133ma ++ and works perfectly except for the jumping problem at low current. So for example if you have a diode that needs 320ma.. would you swap me your driver for mine so I can get lower current?

pm me any offers and i will sort out shipping, payments and stuff..

Thank you so much in advance! -Adrian


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Last edited by bobhaha; 09-30-2009 at 12:07 PM.
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Old 09-26-2009, 02:14 PM #2
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Default Re: Rkcstr Groove playing up.. need help!

bump!!
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Old 09-26-2009, 09:03 PM #3
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Default Re: Rkcstr Groove playing up.. need help!

Take some pictures of the Rkcstr driver. He's released different versions over time, and we don't know which is which. Some even have two different current range settings.
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Old 09-27-2009, 10:17 AM #4
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Default Re: Rkcstr Groove playing up.. need help!

ok i will.. this is definately not the one with the two ranges.. i have checked might upload some pics shortly!
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Old 09-27-2009, 12:33 PM #5
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Default Re: Rkcstr Groove playing up.. need help!

here are a few pics of the dirver!







i know i didn't get a pic of the other side, but i hope this is enough to help identify it

ill get a few close ups tommorow if you cant identify it for me
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Old 09-28-2009, 07:18 AM #6
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Default Re: Rkcstr Groove playing up.. need help!

there?
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Old 09-28-2009, 08:50 AM #7
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Default Re: Rkcstr Groove playing up.. need help!

if you think the pots broken just ask ryan to send you aqnother one. hes a great guy and will probably do it for the cost of shipping. ive ran br diodes with 7.2v before just make sure your not using something with high voltage requirements like an 8x diode..
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Old 09-28-2009, 08:52 AM #8
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Default Re: Rkcstr Groove playing up.. need help!

ryan... who?? btw did you see my pm's?
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632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
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445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

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Old 09-28-2009, 01:13 PM #9
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Default Re: Rkcstr Groove playing up.. need help!

Quote:
Originally Posted by bobhaha View Post
ryan... who?? btw did you see my pm's?
Ryan, also know as rkcstr
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Old 09-28-2009, 02:42 PM #10
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Default Re: Rkcstr Groove playing up.. need help!

Responded to PM.

FYI, this is a "high range" driver. The intended output range is 130-430mA, which is why it won't go any lower than 130mA.

Also, no biggie, but you may be confusing people with the "groove" in the name. The "Groove" is DrLava's linear-type driver.
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Old 09-29-2009, 05:48 AM #11
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Default Re: Rkcstr Groove playing up.. need help!

yeah my bad.. it was given to me in the kit and i was told it was a rkcstr groove.. so yeah sorry for the confusion.. i have bought a new rull range driver and will be using that! thanks for the quick and detailed reply Rkcstr really appresiate it! -Adrian
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635nm - 430mW C6 Host*
632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
473nm - 2x CNI lab lasers ~40mW
445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

Goggles!
Laser glow LSG-532-Sport protective eye goggles OD 7+ 190-532nm HIGHLY RECOMMENDED!!
Jetlasers wrap around 190-540nm OD4+ goggles*
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Scopeguy20 Blublockers for 405nm lasers!

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Old 09-29-2009, 07:12 AM #12
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Default Re: Rkcstr Groove playing up.. need help!

you can also play with the smd resistors to gain different min. max. currents.

try removing the 20.5ohm resistor.
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