#302

How did I miss that you’d added a quantizer to the TXi?! That’s really neat. I’d been wondering about adding the ability quantize to the data in a track at some point, but may not need to bother.

1 Like
#303

houston, we have lift-off!!

IMG_2107.JPG1614×1044 232 KB

they fit in isms just fine even with the ii and power cables underneath!

10 Likes
#304

What?
How did you get these?!

1 Like
#305

beta testing in less than 20 characters

3 Likes
#306

ah, lucky you! beta-twenty-character-tester!

1 Like
#307

a short video demonstrating using TXo as a chord voice.

I script sets the 4 outputs to oscillator mode and enables envelopes
1 triggers the envelopes (separate lines because at some point i also used a delay to create a ‘harp’ effect)
4 selects waveforms for all 4 oscillators randomly, triggered by Pressure Points gate output
8 reads voltage from TXi (row 1 from Pressure Points) and creates a chord by transposing oscillators 2-4
sometimes the pitch doesn’t change right away - probably need to add a bit of a delay.

8 Likes
#308

@bpcmusic Sorry for not asking earlier, the beginning of 2017 has been a bit hectic, but do you have any spare PCB / panel sets left? My SDIY is still at the through hole level, but I can see myself going SMD at some point in the next 2 years. (It seems like a lot of SDIY is going SMD really…)

Also, I’m hoping to land a PR for my parser / sub command changes soon, but was wondering if you wanted to merge your extra OPs in first? That way I can take care of upgrading your code to the new way of doing things. Let me know.

3 Likes
#309

@sam - no worries; I’ll get you on the reserve list. As long as I don’t boff too many builds, there should be PCBs to spare.

As for my branch, I’m good to merge that in anytime. There are a few requested ops above and I am also contemplating putting in read operators for values off of the outputs - but the latter is a sizable undertaking and I won’t likely be getting to either until after I’ve spent some good coding time on some upcoming long business flights.

What is the best way to support you, @sam? Should I throw a pull request to the main branch?

At @tehn’s suggestion, I tried heat-shrinking the i2c jumpers I’m including with the modules. What a great suggestion; not only do they look great, but watching the tubing shrink around the little connector is one of the more satisfying things in life. I might end up with a lot of extras!! :wink:

My new 3D printer just arrived (been waiting for ages) and it is amazing. I’ve finally printed the stencil frames that I will use to hold the boards level that have one side of components populated while I apply solder paste to the other.

This is pretty critical as the only assembly problem that I’ve had with the SMD reflow has been a little too much paste being applied to a board that is uneven due to the components on the flip side. Even though a couple of the boards only have a few components on them, being able to reflow all of the SMD keeps the quality very consistent and also helps me go much, much faster.

It has been awesome for me to watch @scanner_darkly play with the BETA expanders on Instagram and above. He has been great in providing feedback and identifying some firmware edge cases (with the envelopes). I really appreciate his support!! Not only is he helping provide everyone with a more solid set of expanders, but it is motivating as hell for me to see something that I’ve been working on for the last year start to get some creative use.

I can’t wait till all of you that reserved them get a chance to use them creatively. There is still some real time until I can assemble and ship the production units; just know how excited I am to be able to share them with you. Thanks for all of the support and good vibes!!

9 Likes
#310

I’ve got to merge some upstream changes from master into my branch. It’s mainly updating some more OPs to the new format. While I’m doing that it would be very easy to do yours at the same time (esp. as my branch has lots of tests to make sure everything has been filled in correctly).

So I say merge what you’ve got first.

#311

Great; I’ll look to do the pull request in the next few days.

1 Like
#312

i wanted to order parts for the diy build and done up the mouser carts for tO and tI, thought this might be useful for some. The parts quantity are as per the BOM

https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=74d09d9048

https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=8d918b21da

The carts dont have the headers(including the power header), leds, pots and teensy. For teensy, i usually get it from oshpark.

For headers(non precision) and pots, can try tayda
https://www.taydaelectronics.com/catalogsearch/result/?q=2.54+header
https://www.taydaelectronics.com/10k-ohm-linear-taper-potentiometer-round-shaft-pcb-9mm.html

For precision header(2.54 machined pin), ebay usually has lots of those. But do take note if ordering it within this and next week, most of china/hongkong will prolly be shut down soon during chinese new year, so it will likely to take a while for the processing and shipping out.

For the led, am not sure which one will match the closest to teletype, so will leave that out for the moment

1 Like
#313

That’s awesome, @pathein. Thanks!

For the LEDS, I got them from Tayda (https://www.taydaelectronics.com/) as well. They match pretty well!

For the Teensy, OshPark is the place. They are the cheapest around for the 3.2.

#314

Thanks bcpmusic for the info on the led! Think i will get similar ones from my local store for it.

Just wondering, what will be the current limiting resistor value for the led on the bom?
I tried some similar ultra white ones in another diy kit with a 2.2k value for the current limiting, it was still relatively bright in a dark environment.

#315

You can find it on the schematic:

10k for all LEDs.

#316

Ahh yeah, missed it for the moment that all the info are on github.

Thanks and gonna proceed with the parts ordering.

1 Like
#317

TELEX Update

Parts and Stuff

Everything is in hand at this point but the backordered potentiometers (which we may be ok without) and the panels. Apparently, we broke the machine at MPC making the panels. :slight_smile: They were able to make some of the TXi panels before it buggered up. They are going to send those while they get the machine fixed. They said things should be back in production this week.

The crap-ton of Teensy arrived at the end of last week from Osh Park. I’ve been daydreaming about making a “Teensy Supercomputer”:

Production

Worked on the production pipeline over the weekend and did the first test-run on the production PCBs. The 3D printed SMD dispensers and visual build guides really ramped up by speed!

Here is a little tray I probably won’t be using for the larger components (ICs, etc.):

SMD work is done on the production test units; I’ll be doing the assembly and testing over the next couple of days:

The printed trays for back-side soldering really improved the ability to nail the application of solder paste as it took out the wobble. In fact, I’m considering making another type of tray that lets me have multiple units flat on my workspace as it also helped me put on components without teetering.

Firmware

I still need to do a pull request (sorry @sam), I’ve just been a little too caught up with the hardware stuff this week. @scanner_darkly did find a firmware issue around envelope initialization; easy enough to fix and will put in a quick patch to the Teensy code at some point soon. Haven’t gotten to the new functions @trickyflemming - but will certainly get them in there when I shift into code-mode.

13 Likes
#318

Woah - MPC just delivered the first batch of TXi panels today. I’ll post a pic of them next to a Teletype tonight - but check them out on my desk:

19 Likes
#319

Here is the panel next to the Teletype:

19 Likes
#320

Looks great! Thanks for update :cat:
If I get this right, there are no more software/firmware issues left at the moment, so its not too far away from reaching people like me?

#321

@nimmen - depends on how you define “not too far away”. I still have to produce the things - by hand. They are a complex build; just when you think you are about done with one you have fifteen more things to do. That’s any build, really - but there is no automated machine to do this like others use. Just little old me.

I’ll go as fast as I can - but it will still be a while. Work. Life. Stamina. Etc.

Here is another glamor shot - this time with my assembled production tests installed behind the panels:

Aside from a couple of snags, I’m pretty darn happy with how they look in context!

14 Likes