| 23:01 | lab-bot | davidak created T124: monitor social networks for opinions about axiom. http://lab.apertus.org/T124
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| 23:16 | Rebelj12a | responded
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| 23:25 | Rebelj12a | Alright see you all later
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| 01:25 | Bertl | off to bed now ... have a good one everyone!
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| 01:25 | Bertl | changed nick to: Bertl_zZ
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| 09:15 | se6astian|away | changed nick to: se6astian
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| 09:17 | lab-bot | sebastian closed T113: CMV12000 PCB module progress as "Resolved". http://lab.apertus.org/T113
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| 09:17 | lab-bot | sebastian closed T114: Remote Control Simulator draft as "Resolved". http://lab.apertus.org/T114
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| 09:19 | Bertl_zZ | changed nick to: Bertl
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| 09:19 | Bertl | morning folks!
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| 09:20 | lab-bot | sebastian created T125: Create 3D printable enclosure mock of the AXIOM Remote Control device. http://lab.apertus.org/T125
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| 09:21 | se6astian | good morning!
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| 09:28 | mars_ | morning
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| 09:30 | se6astian | Bertl: please take a look at the PCB design related questions/comments at https://www.apertus.org/axiom-beta-progress-article-november-2014
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| 09:38 | sb0_ | left the channel |
| 09:54 | danieel | also more in my email
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| 09:55 | Bertl | you've got mail
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| 09:56 | danieel | would be good to do development only by 1 channel :) now you have to sync web, mail and lab...
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| 09:56 | danieel | probably all ends up in lab. ?
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| 09:56 | Bertl | at some point, yes
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| 10:01 | danieel | checked the power algo... the ov/uv -> en is sw or hw?
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| 10:02 | Bertl | probably hardware, but it could be a cpld
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| 10:02 | danieel | it would be not nice to allow sw destruction :/
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| 10:02 | Bertl | hehe, no, we plan to make that as safe as possible
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| 10:02 | Bertl | ideas there are also very welcome
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| 10:03 | danieel | then just a gate + load switch on the board... those are not on the sensor board?
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| 10:05 | Bertl | not planned on the sensor board, but it would be an option
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| 10:05 | Bertl | i.e. the beta board is planned to sequence the voltages, but the control circuitry prevents applying unsuitable voltages
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| 10:10 | Bertl | danieel: ah, I forgot to clarify about the resistor values, they have to be calculated according to the sensor specification, which we didn't do yet
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| 10:12 | Bertl | se6astian: the last comment on the web is probably more your area.
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| 10:25 | danieel | if you put the control circuit over 2 boards, make the logic in way that disconnection of the ov/uv lines leads to "fail" state
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| 10:25 | danieel | (connector failure)
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| 10:26 | se6astian | Bertl: will do
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| 10:26 | se6astian | maybe you can help me understand "developpement must reach its higher frequency and try to summarize like you just did in order to avoid getting away from the project targets." ?
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| 10:26 | Bertl | danieel: yes, thanks, they get weak pull ups on the ov/uv circuit, so a disconnect will cause ov/uv to go high (same for unused voltages)
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| 10:27 | Bertl | se6astian: I think this just says that short, bundled updates are a good thing (many different areas reported at once)
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| 10:28 | se6astian | I see
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| 10:29 | se6astian | gotta go
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| 10:29 | se6astian | bbl
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| 10:29 | se6astian | changed nick to: se6astian|away
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| 10:29 | Bertl | danieel: what we haven't solved properly yet is how to switch the voltage off on ov/uv without affecting the check voltage while keeping it accurate
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| 10:30 | Bertl | any ideas there are very welcome
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| 10:31 | danieel | like if there is a short behind the load switch? (en causes uv, and it gets repeatedly switched..?)
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| 10:34 | Bertl | yeah, I was thinking of a power regulator design which basically is a voltage follower
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| 10:34 | Bertl | i.e. provide the check voltage always
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| 10:34 | Bertl | and then power on the high current voltage follower if ov/uv is okay
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| 10:35 | Bertl | (which gets automatically disabled once the ov/uv condition appears)
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| 10:55 | __anton__ | Hi Bertl, quick question: apart from 36 diff pairs and 16 control signals what power connections does the interface board need? How many voltages?
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| 10:57 | Bertl | you are talking connection to the Beta board here, in which case it will be 8 voltages and 3*8 voltage control lines
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| 10:57 | Bertl | plus a few additional lines for I2C, SPI and JTAG
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| 10:58 | Bertl | I will upload an interface board design (empty) shortly
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| 11:02 | __anton__ | 72 wires for diff pairs + ground for power + 8 wires to feed 8 voltages + 16 wires to control the sensor + 24 wires to control voltages + a few extra?
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| 11:03 | Bertl | that's about it, we are planning to use dual 120+12 pin connectors between interface board and beta board
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| 11:03 | Bertl | those include the ground/power pins placed for shielding of course
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| 11:24 | __anton__ | But amperage isnt that great on power lines is it?
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| 11:44 | Bertl | most voltages will be below 500mA, some have peaks around 2A but that should be mostly covered by decoupling
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| 12:27 | Bertl | __anton__: http://vserver.13thfloor.at/Stuff/AXIOM/BETA/axiom_beta_interface_cmv12000_v0.3.pdf
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| 12:37 | __anton__ | Bertl: thx, this gives me some idea. I am still going to show you my latest ideas on body design before midnight gmt today. Looks like they would require alternative interface and beta board designs as they rely on a diffetent type of connectors. I am still trying to figure out price and availability of those connectors
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| 12:40 | Bertl | note that if you do not care about bandwidth or space, you could split the interface board into two boards and have a low wire count connection between them
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| 12:41 | Bertl | you could also equip both boards with high speed serial interfaces and run the data over those
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| 12:41 | Bertl | (just some ideas)
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| 12:42 | __anton__ | I plead time till midnight to finish research :)
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| 13:30 | __anton__ | Bertl: assuming our connection line is good (no reactive part in impedance) it is okay if some of the dignal pairs are slightly longer than others?
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| 13:31 | Bertl | define "some" :)
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| 13:32 | __anton__ | We have 36 signal pairs. If their length is not identical is that okay?
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| 13:33 | Bertl | depends on the protocol we want to run over them, but assumed that the wires in a pair are identical in length, a fixed delay can usually be compensated
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| 13:33 | __anton__ | Supposr the longest is 3cm longer than the shortest and the rest fall in between?
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| 13:34 | __anton__ | So there is a delay..
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| 13:34 | Bertl | we can go up to 1.5GHz (rough estimate) on those lanes, so yes, the length is significant but could be compensated with a delay element
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| 15:15 | Bertl | off for now ... bbl
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| 15:15 | Bertl | changed nick to: Bertl_oO
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| 16:46 | Bertl_oO | changed nick to: Bertl
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| 16:46 | Bertl | back now ...
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| 19:39 | lab-bot | sebastian created T126: make dictator dials extend out of enclosure on the side. http://lab.apertus.org/T126
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| 19:40 | se6astian | changed nick to: se6astian|away
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| 20:05 | comradekingu | How about two slides along the length of the display, and the display actually reads what the result is, F 1 F4 F16
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| 20:05 | lab-bot | F4: http://lab.apertus.org/file/data/4wfrsa332ugvve3h6gai/PHID-FILE-bz6vpmzgnwg6jaals5bf/profile-philippe.jpg - profile-philippe.jpg
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| 20:05 | lab-bot | F16: http://lab.apertus.org/file/data/wxlfx5inh2y65pycs2zb/PHID-FILE-jhjr2ckk2mvfj4cis4uf/profile-github_-profile.jpg - profile-github_-profile.jpg
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| 20:12 | intracube | hi
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| 20:12 | intracube | have the M4/3 and 16mm sensor options been dropped?
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| 20:13 | intracube | remembers there was talk about focusing on the CMV12000 if the demand for the others was so low
| | 20:14 | Bertl | no, they haven't been dropped
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| 20:14 | intracube | Bertl: ah ok
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| 20:14 | Bertl | we just prioritize on the CMV12000
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| 20:15 | intracube | this page could do with updating sometime: https://apertus.org/axiom-beta
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| 20:15 | Bertl | in what regard?
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| 20:15 | intracube | only the cmv12000 is listed there
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| 20:16 | intracube | the indiegogo site has more up to date information
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| 20:16 | Bertl | ah, okay, yes, please crate (or extend) a task on the lab
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| 20:16 | intracube | ok :)
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| 20:34 | lab-bot | intracube created T127: Optical Low Pass Filter (OLPF) options. http://lab.apertus.org/T127
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| 20:35 | skinkie_ | se6astian|away: do you know who is neurofunk?
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| 20:35 | skinkie_ | se6astian|away: aombk send me a private message
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| 20:47 | lab-bot | intracube created T128: Merge articles from Indiegogo to apertus.org. http://lab.apertus.org/T128
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| 21:06 | lab-bot | intracube created T129: Maniphest default page. http://lab.apertus.org/T129
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| 21:15 | comradekingu | intracube: that was just me talking. It could still make sense to see what the actual pricepoints are, and then offer m43 and 16mms to swap to aps-C
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| 21:16 | comradekingu | Current designs are made to be modular, so it does make sense to target more things though
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| 21:19 | intracube | comradekingu: yep
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| 21:20 | intracube | it might actually make sense to have at least two sensor options available
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| 21:20 | intracube | if there are any obscure hardware bugs it might help diagnose where the issue is
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| 21:20 | intracube | like if the bug only occurs with one of the sensors
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| 21:21 | intracube | a bit of diversity can help narrow down some issues
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| 21:21 | Rebelj12a | This could totally be modified to shoot 35mm film. haha
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| 21:24 | intracube | Rebelj12a: huh?
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| 21:24 | Bertl | I also think that it would be beneficial to have more than one sensor to allow for comparison in many ways
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| 21:24 | Rebelj12a | dont mind me im craaaaazy
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| 21:24 | intracube | Rebelj12a: http://media.giphy.com/media/jeXiz1RAvzX44/giphy.gif
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| 21:24 | intracube | :P
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| 21:25 | Rebelj12a | XD
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| 22:06 | lab-bot | davidak created T130: Images not loaded. http://lab.apertus.org/T130
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| 22:43 | comradekingu | On the dictator, something like http://www.djworx.com/skratchworx/newspage.php?fn_mode=comments&fn_id=1186 is what i had in mind
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| 22:44 | comradekingu | I think they can be had with force feedback. The benefit is that you can instantly see where its at, whereas a wheel its not so obvious, even with a needle
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| 22:44 | comradekingu | and if handheld, i think its easier to do follow-focus with a slider
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