Mail Day Thread

i’m curious and look at the web site description and not really understand what that module do (in the real life :slight_smile: ).

Have you a “better” or simplest explaination for me please .

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@Dud I too was interested, I have found a youtube demo, but im still no wiser

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Sheet metal nibbler.
I bought it because i need to do bodywork on my car, but i’m sure this will make cutting synth panels very easy :slight_smile:

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I guess this will be 1000 times better than drilling a lot of small holes and then ruining your pliers (my approach)! :wink:

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And probably 1000 times faster :slight_smile:

But the way you mentioned is how i’ve been doing it as well.

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Here’s another demo

In layman’s terms, it takes an input CV or two and f***s them up.

The Difference Rectifier section takes two CVs, subtracts one from the other, and outputs the positive-going part of that on one output and the negative-going part on the other. (Kind of. Not exactly because diodes aren’t ideal rectifiers.) The circuit board has two + inputs and two - inputs but they’re each just summed equally and treated as one + and one - input.

The Neuron section takes a CV and … does something. If it’s above a threshold it outputs a high level and if below it outputs a shifted version of the input, or something like that. Again, the board has three inputs but they’re all summed together and treated as one.

I don’t think this is intended for a usage style of “oh, I need this to get turned into that, this module will do that for me” so much as “ok, here’s a couple signals, let’s see what happens if I stick them in here”.

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YELLOW push button! Where’d you find it?

(I see the global capacitor shortage is going to continue.)

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I went the cheapest nibble route and bought a nibbler attachment for my drill. Forgot my new drill had a modern snap Chuck and now have to use it with a Chuck adapter so while it’s huge and cumbersome I’m ready for the road warrior stage of the zombie apocalypse.

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As @analogoutput would say, more world capacitor shortages. When I checked a couple of weeks ago my usual UK suppliers were already missing many of the required value capacitors, so I guess I will be using the links provided in the BOM, may have to wait a couple of weeks, I have built or building a fair few modules in the last couple of months, I just need to make sure my spending on this hobby is less than my mortgage payments, lol.

On a side note, this is my first time having JLC aluminium panels fabricated, while they are nice and ridged, everyone is damaged. The paintwork looks like a sheep was used as a roller, chipped scratched, the black changes colour with a definitive line, the white area on the lower left looks like crazy paving and all the text is blurred. However, I don’t feel I should raise this as a Q&A issue as the fabrication service is not advertised as suitable for external panels. It was my choice to try out a new material. This is not a reflection on the module designer, simply a fabrication issue.

Thanks for the design Rich, I am looking forward to getting this in my rack.

If anyone within postage distance of the UK would like a set, I have 4 up for grabs, all I ask is you cover the postage and packaging cost. Please read my comments above r.e panel quality.

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Huh, another person with bad results of Al panels from JLCPCB. I’ve ordered I guess two batches totalling about 6 panel designs (plus one test order) and generally I have not seen any difference in mask/silkscreen quality with FR4. Maybe I’ve just gotten lucky.

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You must be a favourite customer, better quality panels, no extra charges for panel cutouts. Do you send cake and Haribo’s with every order :slight_smile:

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LOL yeah man there is the stinking reality of needing somewhere to keep all your gear .

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Something similar occurred to me when I order the first aluminium boards from JLCPCB. Four out of five panels had a bad paint job. After contacting JLCPCB customer support they gave me a voucher for 4/5 of the price. They also offered to send me 5 new ones, but given that I needed only 1, I went for the voucher.

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That is good to know, I was not expecting them to give vouchers. Maybe I should, at least they become aware of the problem, and it could go a fair way towards my next PCB set. Big panels with additional costs for milling the slots are not cheap.

Thanks for the advice.

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Postman had a package for me today, but he could not give it to me, because I have to pay customs. I am fine with that, BUT:
He is not allowed to collect any money, so I have to wait till Monday, drive to the other end of the city and pay 1.68€ customs + 6€ customs collection and handling fee! XD

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felt weird :yellow_heart:ing this that kinda sucks . it will cost more in travel ,time , handling fees than the actual tax . seems like something that could be done much simpler , guess then the " right " people wouldn’t be filling their pockets with everyone’s money .

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In the UK I can generally pay a custom charge online or with an app. It’s not been an issue since many vendors like AliExpress switched to collecting tax for the UK. (Some Tory trade shenanigans there I’m sure… God I miss being European! Still, being Scots still beats all!)

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Post has been, with another board swap, this time with @Sonosus

Power supplies and 3340 breakout boards. This is good timing, as I only have 125mm left in my current Kosmo case, and shall be starting a second in the coming weeks.

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I received @Dave 's boards yesterday but Discourse was refusing to process my image upload.

Farini envelope generator, K25 glide, AR, and sub osc.
This should keep me building for ages.

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I got these in the mail today:


It is a eurorack format open source ‘expander’ of the Daisy Seed made by Sam Braam. Sam published this 4 HP version here. Note, there is a 1U version as well.

This pic shows how the 4HP version should look when fully assembled.

It provides 2 audio inputs and outputs, 2 CV inputs, a midi input and some pots, a rotary controller + SD card slot + small OLED, so it opens up a lot of possibilities to use a Daisy Seed in a rack.

Although its dimensions are not KOSMO, the build and schematic might be interesting for anybody who wants to use a daisy seed in a kosmo environment.

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