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Projects => Build Reports => Topic started by: LaceSensor on December 08, 2011, 12:24:35 PM

Title: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 08, 2011, 12:24:35 PM
Dear forum

Pleased to say I have finished this, bar some tweaking.
I thought I would put up a few shots of the build as it progressed. I didnt take pics of every stage, but I feel it deserves a bit more than just a " top and guts"

First up here is the populated board
Its a pretty serious build. I didnt read the manual properly (skim) before starting, but thanks to experience I populated the board exactly as described in the BOM, so it does work and everything can fit.

(http://i1178.photobucket.com/albums/x374/LaceSensor1/Dirtbag%20DMM/P1020655.jpg)

Resistors first - 1/4W 1% metal film mostly, 5% carbon for odd values. I used my multimeter to verify where it was important (5.6K for example).

Then the diodes, and the trimmers. Diodes, easy, trimmers, I recommend Tayda. These ones are exactly to spec size wise for Beans boards, and are ridiculously cheap ($0.16 IIRC). I bought a bunch of each value for future use.

After that, the sockets. I prefer the gold contact turned variety, but the standard ones are fine. Bear in mind the gaps with some of the resistors/capacitors is touch and go (see around IC for a good example) so take care with positioning. I seem to recall R8 and R60 being in the way a bit. Also, C34 and C40 can stop the IC being inserted fully, so watch out for that when socketing.

After all this I added my pots and switch.
Concurrently, I was marking and drilling the box. The culmination of which is this:

(http://i1178.photobucket.com/albums/x374/LaceSensor1/Dirtbag%20DMM/P1020658.jpg)

I drilled a pilot hole for the Overload LED directly (ish) above the point of the board. I used a SIL socket on the rear of the board to for the LED connection. I was pretty confident, but doesnt hurt to then check everything fits in your enclosure. I used a 1590BB from Tayda (nice quality, $5) as per the BOM.

(http://i1178.photobucket.com/albums/x374/LaceSensor1/Dirtbag%20DMM/P1020656.jpg)

I found some time to start work on a decal now the box was drilled, and unashamedly went with a rip off of the original design. I love the 70s/80s EH designs, so why change a winning formula. Here is the prototype on paper.

(http://i1178.photobucket.com/albums/x374/LaceSensor1/Dirtbag%20DMM/P1020664.jpg)

Afterwards I set about finalising this and making up the real decal. I use Inkjet Vinyl self adhesives, and clearcoat with automotive clear spray (3 coats). I sanded the box roughly at an 45 degree angle to simulate a brushed aluminium effect of the big trapezoid EH boxes. I think it looks nice.

(http://i1178.photobucket.com/albums/x374/LaceSensor1/Dirtbag%20DMM/P1020667.jpg)

Then came wiring up and testing outside the box. For those who follow the thread in Tech, this was time consuming and worrying, but eventually I am at the stage now where I have almost clean delays. Lessons learnt - socket all your ICs firmly. I didnt change anything than that between testing sessions. At first all I got was noise. Went away, had food, double checked all IC seating, and bam, some delay was coming through clean(ish).

Anyway, this leads us to boxing-post-rocking. I used a 3mm red diffuse LED for the overload, and a 5mm red diffuse for the status, mounted in tayda holders. Hole sizes are 6mm and 8mm for these.

(http://i1178.photobucket.com/albums/x374/LaceSensor1/Dirtbag%20DMM/P1020678.jpg)

Pretty happy with the wiring job. The Power Jack placement was carefully measured before drilling to ensure clearance. In hindisight it would also been fine at the top centre near the VC connection, but I went with this and its fine. I used nice 8mm DC jacks. Perfect when you wouldnt use a battery anyway.

For the guyshot fans heres another close up

(http://i1178.photobucket.com/albums/x374/LaceSensor1/Dirtbag%20DMM/P1020677.jpg)

Finally, with the addition of some (in my eyes) lovely knobs, the thing is complete.

(http://i1178.photobucket.com/albums/x374/LaceSensor1/Dirtbag%20DMM/P1020673.jpg)

(http://i1178.photobucket.com/albums/x374/LaceSensor1/Dirtbag%20DMM/P1020672.jpg)

Thanks to Bean for the board, Scruffie for the tech help, and all others involved.
One hell of a project. Now to tweak and tweak and tweak those trimmers....

;DLS





Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: eldanko on December 08, 2011, 01:24:49 PM
This looks OUTSTANDING!  Well done man. 
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 08, 2011, 01:26:08 PM
Quote from: eldanko on December 08, 2011, 01:24:49 PM
This looks OUTSTANDING!  Well done man. 
Cheers buddy. Sounds good now, cant wait to get it tweaked 100%.
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: marmaliser on December 08, 2011, 01:26:47 PM
Quote from: eldanko on December 08, 2011, 01:24:49 PM
This looks OUTSTANDING!  Well done man. 
+10 .. Well done.  I am torn wether to build this or not.  I think I will get my Current lover done and see
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: Loztboy on December 08, 2011, 02:19:28 PM
Very impressive!
Where did you get the self adhesives Inkjet Vinyl?
Would you mind sharing the graphics? in psd-format maybe?
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 08, 2011, 02:29:09 PM
Quote from: marmaliser on December 08, 2011, 01:26:47 PM
Quote from: eldanko on December 08, 2011, 01:24:49 PM
This looks OUTSTANDING!  Well done man. 
+10 .. Well done.  I am torn wether to build this or not.  I think I will get my Current lover done and see

Current Lover is next on my to do list. Need a 125B
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 08, 2011, 02:33:30 PM
Quote from: Loztboy on December 08, 2011, 02:19:28 PM
Very impressive!
Where did you get the self adhesives Inkjet Vinyl?
Would you mind sharing the graphics? in psd-format maybe?


Inkjet vinyl from Ebay. http://www.ebay.co.uk/sch/steclar704/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p3686 seller steclar

I can share the graphics, but I use MS paint (LOL, but I am crap at PS).
They can probably be sharpened up in PS though if you know what you are doing.
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: Bret608 on December 08, 2011, 02:59:37 PM
Wow! This thing looks amazing. I am nowhere near skilled enough to take this one on myself just yet, but am certainly inspired to try to get there!
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: madbean on December 08, 2011, 03:02:36 PM
Terrific work. Looks very pro outside and in!
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 08, 2011, 03:02:40 PM
In my mind, if you can solder any pcb and get it to work, you can do this one. Its just the same thing but bigger. But yeah, probably work up to it.

I would definitely buy the PCB while they are available though you never know when stuff gets discontinued around here  :D
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 08, 2011, 03:03:25 PM
Quote from: madbean on December 08, 2011, 03:02:36 PM
Terrific work. Looks very pro outside and in!

I am humbled.  :-X     :)
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: dwstanford on December 08, 2011, 03:10:22 PM
Tremendous job.  Maybe you can do a demo once you get it all tweeked out?
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 08, 2011, 03:19:26 PM
Yeah I will do a demo for sure
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: JakeFuzz on December 08, 2011, 03:22:44 PM
Wow, I designed a graphic almost exactly like this for my d-bag last weekend! Weird, how similar they are, mine just says dirtbag delay instead of deluxe memory man. Looks really good, I cant wait to hear the demo!
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 08, 2011, 04:15:52 PM
looking forward to seeing it
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: Roctopus on December 08, 2011, 04:29:55 PM
This is fantastic! A+ sir
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: nzCdog on December 08, 2011, 07:45:57 PM
Great build! :)
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: petesz on December 08, 2011, 09:02:01 PM
nice!!! great clean looking build. a video demo would be great ;)
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: djaaz on December 08, 2011, 10:27:29 PM
Congratulations, nice job.

Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: slimtriggers on December 09, 2011, 01:58:52 AM
WOW!   :o  This is a GREAT build!  Can't wait to hear it in action.
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: snz728 on December 09, 2011, 02:39:33 AM
Excellent work!
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: Micpoc on December 09, 2011, 02:48:54 AM
I'm speechless; this is the next one on my list for sure.

I'm wondering: did you create the graphic from scratch and, if so, what fonts did you use in doing so?
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: Loztboy on December 09, 2011, 07:53:39 AM
Is the delay time the same with v3205 and MN3005?
I have ordered some MN3005's but if I do the v3205 I won't have to include a RoadRage.
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: MadeByMike on December 09, 2011, 08:36:14 AM
Looks amazing!

When making this, did you experience any of the issues that the guys in the Tech Help thread seem to be having? I assume all your parts placements are stock?
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 09, 2011, 09:00:50 AM
Im one of the guys debugging in the tech thread.

for the grapics no I butchered a DMM photo in ms paint to make it.
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: MadeByMike on December 09, 2011, 09:04:57 AM
Quote from: LaceSensor on December 09, 2011, 09:00:50 AM
Im one of the guys debugging in the tech thread.

for the grapics no I butchered a DMM photo in ms paint to make it.

Ah - sorry I should have noticed that. Hopefully the creases will be ironed out soon, your pdeal looks amazing
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 09, 2011, 09:12:44 AM
Its an amazing paper weight right now.

Not even getting any delays any more.
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: badgerific on December 09, 2011, 09:58:16 AM
That looks lovely :) hope you can work out the problem soon.
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: Scruffie on December 09, 2011, 04:13:13 PM
Quote from: Loztboy on December 09, 2011, 07:53:39 AM
Is the delay time the same with v3205 and MN3005?
I have ordered some MN3005's but if I do the v3205 I won't have to include a RoadRage.

Delay time will be the same (as long as the important values are correct, Delay Pot, 240pF Cap & 5k6 Resistor on the clock) they're both 4096 stage devices.
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: TNblueshawk on December 10, 2011, 01:44:55 PM
Holy smokes, fantastic build. Thanks for the build tips too
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: bigmufffuzzwizz on December 10, 2011, 07:51:50 PM
 :o :o :o
This looks amazing!! Great breakdown of building it, you make me feel a little bit easier about it, though I still need a board!
But really, wow!
Title: Re: Dirtbag Delay EH DMM v3205 version
Post by: LaceSensor on December 11, 2011, 11:46:05 PM
If you can do one board you can do any just take your time and be thorough in planning an execution.
Take breaks too. There is a lot to do dont expect to be done in an hour.