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281 clone project- taking orders now for last run of these..
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interested in a PCB or 4?
yep
98%
 98%  [ 151 ]
nope
1%
 1%  [ 2 ]
Total Votes : 153

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bugbrand



Joined: Nov 27, 2005
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PostPosted: Sun Jan 20, 2008 4:32 pm    Post subject: Reply with quote  Mark this post and the followings unread

Fernando wrote:
Josh, don't know where you was thinking to manufacture this, but I think Futurlec is a very good option!
No minimum order and very good price (much much better than ExpressPCB etc.)

50 pcbs 102 x 76 mm w/solder mask and silk screen = $6.20 per board + sh
100 pcbs same specs = $5.82 per board + sipping

(shipping would be just $14 within USA)

I think it's amazing.

http://www.futurlec.com/PCBService.shtml


I started recently to make some PCBs with Futurlec and I've found them to be really great and they do have great prices - its even not too pricey for very small runs. You can email them for quotes over 100 boards.

I've been laying things double layered in Eagle and it opens up so many possibilities compared with single sided.

Shipping is cheap too! Though, as always, Futurlec isn't really speedy...
I like 'em though!


I know that this design is pretty much wrapped up now, but something I'd been thinking on would be a compact complete 4 FGs and one of the bottom sections. I really like PCB mount pots and have been trying to figure ways to make it quick & efficient to build things...

So, you'd have a main board (which sounds like it could be quite big?) with four decay pots on and then a flying board for the attack pots. Joining them, perhaps with IDC connectors (you know, the sort of doepfer power ones -- they're really quick to put together and pretty cheap). Normal 0.1" headers for the ins/outs and or-gate thresholds.

I figure something could be designed to fit easily enough into euro or frak height (width wouldn't be too much - maybe 3 frak?). Anyways, thats just some ideas I'd been having..

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Fernando



Joined: Dec 30, 2006
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PostPosted: Sun Jan 20, 2008 4:43 pm    Post subject: Reply with quote  Mark this post and the followings unread

oh, no problem, I got it as a joke, no offense at all.

but wanted to clarify

nooo probs :)
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toppobrillo



Joined: Dec 10, 2005
Posts: 766
Location: oakland, ca
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PostPosted: Sun Jan 20, 2008 10:53 pm    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
>for the +10V CMOS supply, i have substituted an LM7810 for the voltage source in the original

The 78XX are said to induce noise into the power supply lines... (and that you can really notice it)
So my vote is LM317 inclined. It is a much finer regulator.

i second fernando's thought... 78xx are definately noisy & to be avoided.



the outputs of the 78_ and 79_ series regulators are noisier than the LM317 adjustable types, but i don't see it of any consequence here. this 10V supply is for the CMOS in the circuit (CD4016, CD4001) this keeps the CMOS switching off the 15V supply line. i used the 7810 for space and convenience- and yeah they're ok by me.

also, according to data-sheets i looked at, the minimum in to out v. difference recommended is actually 2 volts after all...
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toppobrillo



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PostPosted: Mon Jan 21, 2008 2:59 am    Post subject: Reply with quote  Mark this post and the followings unread

hey bugbrand thanks for the tips- futurlec is relatively cheap... i'm still considering it. yeah the board is basically done- i am 'refining' it now for manufacture- this will be the first one i have ever sent off to a PCB maker, so hopefully all goes well.

Quote:
I know that this design is pretty much wrapped up now, but something I'd been thinking on would be a compact complete 4 FGs and one of the bottom sections. I really like PCB mount pots and have been trying to figure ways to make it quick & efficient to build things...


yeah could be pretty big, or perhaps you could make a sandwich or even use smd parts. i didnt want to make the project a quad- board. i feel like, although there might be a bit more wiring involved- individual boards can more easily mount in alot of ways and i didnt want to limit it to being quad any ways.

oh and by the way, the PCB is about 3"x4"



josh
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bugbrand



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PostPosted: Mon Jan 21, 2008 3:29 am    Post subject: Reply with quote  Mark this post and the followings unread

topp wrote:
hey bugbrand thanks for the tips- futurlec is relatively cheap... i'm still considering it. yeah the board is basically done- i am 'refining' it now for manufacture- this will be the first one i have ever sent off to a PCB maker, so hopefully all goes well.

Quote:
I know that this design is pretty much wrapped up now, but something I'd been thinking on would be a compact complete 4 FGs and one of the bottom sections. I really like PCB mount pots and have been trying to figure ways to make it quick & efficient to build things...


yeah could be pretty big, or perhaps you could make a sandwich or even use smd parts. i didnt want to make the project a quad- board. i feel like, although there might be a bit more wiring involved- individual boards can more easily mount in alot of ways and i didnt want to limit it to being quad any ways.

oh and by the way, the PCB is about 3"x4"



josh


Cool!
I just posted a new thread about PCBs from Futurlec...

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numbernone



Joined: Aug 16, 2006
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PostPosted: Mon Jan 21, 2008 9:28 am    Post subject: Reply with quote  Mark this post and the followings unread

I assume that the 3080s will be DIPs rather than cans???
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Fernando



Joined: Dec 30, 2006
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PostPosted: Mon Jan 21, 2008 10:37 am    Post subject: Reply with quote  Mark this post and the followings unread

Cans are more expensive and rare and, IIRC, are not difficult to fit into a DIP8 frame
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questionable



Joined: Aug 27, 2006
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PostPosted: Mon Jan 21, 2008 12:11 pm    Post subject: Reply with quote  Mark this post and the followings unread

yeah, i'm in for two when you get them done!
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toppobrillo



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PostPosted: Mon Jan 21, 2008 6:44 pm    Post subject: Reply with quote  Mark this post and the followings unread

so there are now orders for alot of boards, more than i had anticipated for sure.. futurlec looks good, but it's still way too much for me to pay up front- so i am investigating other options overseas. (the only downside to this of course is a bit longer of a wait) this will have to wait until NAMM is over and things are back to normal though. so i guess by the end of this week. anyways, as it stands, the boards will wind up less than $12 apiece for sure- and since almost everybody that's ordered has gotten at least 2, many 4s, i guess they may as well be priced at a flat rate. so stay tuned.

in the meantime, here is a snapshot of the board which is pretty much done. i ran out of 'Pins' in my free version of the program i used! i guess i will have to use eagle from now on. o well.


josh


brdupdt.JPG
 Description:
updated board
 Filesize:  58.36 KB
 Viewed:  12911 Time(s)

brdupdt.JPG



Last edited by toppobrillo on Thu Jan 31, 2008 3:53 am; edited 1 time in total
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etaoin



Joined: Jun 30, 2005
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PostPosted: Tue Jan 22, 2008 8:40 am    Post subject: Reply with quote  Mark this post and the followings unread

Fernando wrote:
Cans are more expensive and rare and, IIRC, are not difficult to fit into a DIP8 frame


As this one in a Transcendent:


3080can.jpg
 Description:
3080 can in a DIP8 socket
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3080can.jpg



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Fernando



Joined: Dec 30, 2006
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PostPosted: Tue Jan 22, 2008 1:14 pm    Post subject: Reply with quote  Mark this post and the followings unread

topp wrote:
so there are now orders for alot of boards, more than i had anticipated for sure.. futurlec looks good, but it's still way too much for me to pay up front- so i am investigating other options overseas.

josh


Josh the board looks very good, thank you!

The good thing with Futurlec is that there's no minimum order and that silk screen and solder mask are just $12 each for all the boards so you could split the orders if it's too much money to advance.

I received my last Futurlec order it was fast enough, about 10 days, and they are much more responsive now.
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insider



Joined: Aug 01, 2007
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PostPosted: Tue Jan 22, 2008 4:07 pm    Post subject: Reply with quote  Mark this post and the followings unread

4 for me, please...
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sduck



Joined: Dec 16, 2007
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PostPosted: Tue Jan 22, 2008 9:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

I'd like 4 also - I pm'd you, but just in case that got lost in the ether....

Steve Drake
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toppobrillo



Joined: Dec 10, 2005
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PostPosted: Wed Jan 23, 2008 3:50 pm    Post subject: Reply with quote  Mark this post and the followings unread

so it's wednesday, i would like to wrap up the pre-ordering phase. i am planning to place the order on friday.

the pricing will be a flat US 8$ a board, with a dollar a board going to electro-music.com as a donation from me once i receive payments. i would prefer paypal, but money orders are OK- if you plan on sending a money order, let me know.

shipping will be a flat fee for domestic and also for overseas- standard postal service. if you prefer another method (shouldn't take too long via postal) let me know.

so if anyone wants to now revise/cancel their orders- please do so by friday morning (pacific time) otherwise, i will count on the preliminary order as solid. i won't accept any payment until the boards are here and have been tested- to avoid any problems. i will have a few extras ordered by the way.

FYI the purchase of a PCB will include standard documentation- schematic, parts-placement, wiring, modifications etc. etc. probably just in soft-copy .PDF format. if you need hard-copy, it can be arranged.

i have arranged the pads for flying-wires to accept .1" spaced headers, if you prefer it. the power connector pin arrangement is 4 pins spaced at .1" +V, g, g, -V, with 2 sets-to easily chain the power to other generator boards- there are also pads to chain the 10V source- a single regulator of course can be used for multiple generators.

ok thanks for all the participation, if all this goes smoothly i will definitely be working on more PCBs in the future-

i should also mention that i could be open to some trades (for PCBs) too. that could be fun.

josh
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ickystay



Joined: Nov 15, 2006
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PostPosted: Wed Jan 23, 2008 5:10 pm    Post subject: Reply with quote  Mark this post and the followings unread

So, each board is one section of the panel (281-large.jpeg) you posted in the first post?

How much is shipping?

Thanks.
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Luka



Joined: Jun 29, 2007
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PostPosted: Wed Jan 23, 2008 5:59 pm    Post subject: Reply with quote  Mark this post and the followings unread

can we get a BOM for this project pls
want to order parts before i get the pcb

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bugfight



Joined: Aug 02, 2007
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PostPosted: Wed Jan 23, 2008 6:01 pm    Post subject: Reply with quote  Mark this post and the followings unread

have you confirmed orders?
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toppobrillo



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PostPosted: Wed Jan 23, 2008 7:10 pm    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
So, each board is one section of the panel (281-large.jpeg) you posted in the first post?

How much is shipping?

Thanks.


yes, can be configured as A or B, and has peak circuitry

shipping i will look at but from california to boston, for example @ 8oz.s (half a pound) in a large envelope, 1st class is 2 bucks. so not alot.

Quote:
can we get a BOM for this project pls
want to order parts before i get the pcb


yes, working on all that now. you will have plenty of time to order parts.


Quote:
have you confirmed orders?


you don't need to confirm it if you have pre-ordered via PM- i wrote em all down. but again if you want to add any, subtract or cancel, send me a PM.


josh
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Coriolis



Joined: Apr 11, 2005
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PostPosted: Thu Jan 24, 2008 4:33 am    Post subject: Reply with quote  Mark this post and the followings unread

Sounds very good so far - great price, all the necessary docs, perfect!
PDF is fine by me.

Great communication sofar! Cool

C
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mosc
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PostPosted: Sat Jan 26, 2008 1:50 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hmmm...

I find it amazing that nobody has so far asked Don Buchla if this is OK with him. I just sent email to his company asking them to take a look.

I request that you don't take any orders or order the boards before he checks in on this. Legal copyright and patent issues are one thing, but common decency and respect are in play too.

Thanks.

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julianw



Joined: Jul 30, 2007
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PostPosted: Sun Jan 27, 2008 12:35 pm    Post subject: Reply with quote  Mark this post and the followings unread

Interesting discussion above, my take is that when genii like Buchla unleash their modular mind viruses (memes) into the world they must expect their creations to infect others and mutate.

Naturally the mutated viral-like idea seeks its maker screaming I WANT TO LIVE!! and infect the entire electro-music DIY community then through them the entire PLANET muh-ha-ha

Posted Image, might have been reduced in size. Click Image to view fullscreen.


Hey josh, can you put me down for 4 please, I just PM'd you.
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shuchoco



Joined: Oct 19, 2007
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PostPosted: Mon Jan 28, 2008 3:05 am    Post subject: Reply with quote  Mark this post and the followings unread

i'd like 2 boards please.

thanks!!!
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Coriolis



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PostPosted: Wed Jan 30, 2008 6:25 am    Post subject: Reply with quote  Mark this post and the followings unread

Obviously if Don Buchla feels this project is stepping on his toes, both legally and morally, then it is a no-go for me.

But is there any development on this? Josh, have you been contacted or...?

C
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ericcoleridge



Joined: Jan 16, 2007
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PostPosted: Wed Jan 30, 2008 9:20 am    Post subject: Reply with quote  Mark this post and the followings unread

topp wrote:

yes, can be configured as A or B, and has peak circuitry
josh


There's one other thing I was wondering about with this module, and I was hoping you will know; Does this circuit function as a (voltage controlled) rise/fall lag generator in addition to being a A/D-A/D/S ?

For instance, if it's set for trigger mode, and you input a CV instead of a trig..

Or, no?
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toppobrillo



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PostPosted: Wed Jan 30, 2008 7:11 pm    Post subject: Reply with quote  Mark this post and the followings unread

ok well i was waiting for something from Mosc/Buchla before checking back in here- haven't heard anything so i decided to contact Buchla myself via phone- and he gives it the go-ahead.

i was pretty (understatement?) nervous on the phone with the guy, but i explained as much as i could about this whole deal and the forum and all and told him that Mosc (who he seemed to remember) had emailed, so perhaps now he'll get an email reply.

but anyways... i appreciate all the feedback and concerns opinions etc. etc.,

i am sending the files to the PCB maker tomorrow, if you need to revise any orders please do so tonite/early tommorrow morning. as is, i am ordering just a few extra from what people have reserved already.

many thanks to the forum and Buchla

josh
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