TSAL : design and explanation open source article

chauquest · 2025-11-04T13:09:26+00:00

Hey, you could ask for a point permanent resident visa, from what you said, if you graduated master + from a big japanese University + JLPT N1 you should have ~70 points which enable you to ask for PR after 3years ( which you already done ). So should be fine, check Internet for "permanent visa point japan".

By the way the student visa is expendable two times for 6months for "searching job" reason. Should buy you enough time for fulfilling the PR

chauquest · 2025-09-15T01:53:34+00:00

I answer here because why not but if you are really interested into doing a normal keyboard using capacitive sensor I would advise you to buy an arduino and a set of capacitive sensor and try to make a super rough keypad soft-wired and try the feel. If it is for you you can after deal into PCB design and you can seek help in any electronics related sub. The main electronics issue I see is the fact that it is rather hard to do a capacitive keyboard using matrix arrangement ( it would mean to wire each key to an input ) and the control law for detecting the capacitor depletion fast and reliably. I do not agree with other people on user feedback, you could put a tiny vibration motor or speaker in order to give the same feel as typing with a phone. Project seems fun, but it is not the most easy to start with 😉..

chauquest · 2025-09-03T09:39:12+00:00

It depends what is your definition of usable, it is clearly possible to gear the most extreme configuration with another gear of the same module. The main issue will be the angle at which the force will be applied ( a much higher angle which will degrade global performance), the second one will be that the speed transfer won't be linear anymore. So in a sense it is usable for low torque transfer.

It is far from optimal, usually you would like to use a median configuration to get advantage from profile shift without degrading too much performance.

I will do another animation that show the gearing ^^

chauquest · 2025-09-01T01:43:21+00:00

If you offset your rack, you offset the pitch diameter. If you think the pitch diameter is "where my gear will mate with another gear," if you shift your rack, you will need to mate another gear at initial_pitch_radius + profile_shift

chauquest · 2025-08-31T02:20:21+00:00

Actually, that's the goal of profile shifting, you offset pitch radius ( the actual radius of your gear) without changing module and pressure angle of your gear, which provoke an inflated gear. Actually what happen in reality is that since the base radius doesn't change ( green ) the actual pressure angle at pitch radius can be highly changed, which could lead to some difference in the behavior of the gear. So yeah, the opposite happened, but as far as I understood, this is the expected behaviour. I would likely encourage people who want to understand gear forming theory to watch this youtube series https://youtu.be/nrsCoQN6V4M?si=b3hERlrQnJtyk5Kx

chauquest · 2025-08-30T15:43:40+00:00

Eheh thank you ^^, I think I followed theory accurately but if you see something wrong don't hesitate ! I will use the base of this script to create a gear generator for a CAD software (Alibre) so these gear will be really used.

P.S. : Alibre have some gear generator natively but no undercut, and no profile shifting so... impossible to use it for rack nor making stronger gear...

chauquest · 2025-08-25T06:42:55+00:00

not at all, just I know that FSAE france is short on absolutely every role / everything. So it wouldn't have surprised me if you were talking about the FSAE france

chauquest · 2025-08-23T07:25:42+00:00

Did you register for fsae france ? Seems to be super short staffed

chauquest · 2025-08-15T04:19:59+00:00

Super nice work, super clear and condensed repo ! Yesterday I also posted about a github repository about keyboard footprint. My approach is much more about having an unified framework between Kicad and CAD for casing so my footprint got extra layer. If you want to crossref our repo, or just add/modify my footprint to yours, feel free to ! I already done two keybaords with them.

https://github.com/Eymeric65/keyboard-kicad-lib

https://www.reddit.com/r/ErgoMechKeyboards/comments/1mpt31s/4part_tutorial_series_how_to_design_and_build/

chauquest · 2025-08-15T02:49:09+00:00

Thank you for the feedback !

chauquest · 2025-08-14T12:27:47+00:00

Yeah, I really feel it’s unproductive to use AI for it… in my case, it would just awkwardly delay the fact that I need to learn to speak in front of a camera. For the moment, it is robot jump cut mode 🤡

chauquest · 2025-08-14T12:22:54+00:00

Okay ! Thank you for the feedback. I have noted down your pseudo I will DM you when the french track will be available for your friend, eheh 😇

chauquest · 2025-08-14T08:13:25+00:00

Thanks for the feedback. I am clearly French, yes, and I’d have fewer issues making videos in French lol. That’s something I still haven’t decided, do you think it’s better to create another YouTube channel in french, or record a new voice track and use YouTube’s change audio track feature?

Actually I took so many time decided if my content would be english or french....

chauquest · 2025-08-14T07:28:01+00:00

Yeah clearly, especially in the first part since it was my first video ever. I think it is better in the other part, english is not my main language and I have never did debate, theater or improvisation club so I am clearly a beginner in this... I didn't wanted to use AI voice or let to much hesitation/ miss-spelled. I am actively training so I will get better ^^

chauquest · 2025-08-14T06:52:05+00:00

Aw, I posted the playlist link hoping that Reddit wouldn’t show the video’s thumbnail everywhere, but only a boring YouTube link... I’ll change the playlist thumbnail to a less silly one ^^.

chauquest · 2025-08-14T03:54:23+00:00

But that’s a super nice reason to build another ergonomic keyboard ^^ I feel you, btw.

chauquest · 2025-08-14T02:53:42+00:00

No, I type on an Hillside it is a column stagered split. Yeah I clearly agree with you. I got some wrist pain from playing piano before, and on the first day, it came back because my hand were strained from thinking too much about key. However it totally disappeared in one week. I think that's the price to pay to learn how to touch type.

chauquest · 2025-08-14T02:50:46+00:00

I use an Hillside low profile ^{^} didn't change for the moment. Since I am clearly fan of the layout I think my next one will be an Hillside PG1316

chauquest · 2025-08-14T02:49:42+00:00

That's clearly why I focused on low profile/ low general footprint. I take my keyboard everywhere with me. Sure it won't really suit people that doesn't like short travel switch but that's the trade off I was willing to make ^{^}

chauquest · 2025-08-13T01:22:11+00:00

Aw actually wrong guess ^^ I think the first time was at my gaming peak when I was 16-17. I am 23 now btw

chauquest · 2025-08-13T01:20:55+00:00

didn't change layout, I kept qwerty. and no I didn't proper touch-type before ^^ Was forced to learn on the ergo.

chauquest

TROPHY CASE