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Gathering of Tweakers nomination

Hi guys!

I’ve been invited by the guys from Tweakers.net to do a video interview on my chair build! Woohoo.

SAMSUNG CSC

HT16K33 breakout board

In line with my previous board i’ve designed a custom breakout board for the HT16K33. Much inspired (cough) by Adafruit’s break out board, this design allows for oriented connectors and a I2C passthrough chainability. As an added benefit i have added mounting holes with the same dimension as my controller PCB so they can site next to eachother.

The HT16K33 is a very nice led driver chip that allows 128 individually addressable leds on a single I2C ID. These leds aren’t individually adjustable in brightness like the MCP7219 but for me that isn’t a requirement.

The board is primarily used to drive the throttle and joystick led effects. Currently it is a little mess with all the wires sticking out.

I just sent it off to the PCB maker, I’m guessing i’ll find a design flaw within the next 24 hours.

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UPDATE: The PCB’s have arrived. You can tell they came from the other side of the planet because everything is upside down (bading tssss)

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Updated rudder control

Redesigning the joystick and throttle made them feel much more solid. In fact, they became that much ‘more solid’ that the old rudder control actually started to feel flimsy. So I tackled that one too.

Not much is changed from the previous setup. Most of the changes we basic ‘improvement’ steps. Here they are:

  • Main bearings changed from M4 to M5 width. Bigger bolts and bigger bearings means stronger bolts and bearings.
  • Ditched the old MDF panels and swapped them for black solid 5mm acryl
  • Hall effect sensor parts reprinted with PETG for additional strength and quality.
  • TODO: Recut the (white) mounting plate in black.

So, black it is. The A1302 Hall Effect sensor was already in the old setup so I just had to reassemble everything and perform a small calibration to get it working in the simpit.

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Updated 3D-printed gimbal and throttle design

Here’s version 2 of my joystick mechanical bits. Improvements:

  • Metal control stick
  • Hall Effect sensors
  • Ball bearings
  • PETG filament
  • Adjustable throttle resistance

The metal pipe is what caused the new iteration. Not only is it much more solid, but because the wall of the pipe is much thinner without a change to the outside diameter means more wires can go through.

The change to A1302 Linear Hall Effect sensor was a logic move after the use of the same sensor in the foot controller proved very reliable.

Also I move from 3Dprinting with PLA to PETG. My Vertex K8400 give much stronger and consistent parts now.

With the use of ball bearings everything feels solid and absolutely free of any kind of play.

Gimbal_v2_explode Throttle_v2

 

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