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Removed old cover desc, fixed rubber feet units, knob size, misc, todo etc

2020-05-20 01:57:40 -07:00

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Pocket-SDVX

A mini controller for games such as Sound Voltex, USC, KShoot, osu 4k, etc. Based off of mon's Pocket Voltex and Cammy's pocketvtx!

Features

Super small - About 7" x 4" and a little over 1/2" high (About 1-1/2" including knobs)
7 Gateron Red Keyswitches (Start, BT-A, BT-B, BT-C, BT-D, FX-L, FX-R)
PBT G20 Keycaps
Quality Bourns Encoders (VOL-L, VOL-R)
Solid Aluminum Black 20mm Knobs
Vinyl Skinned Top & Bottom
6 Rubber Feet
Single Screw Back Panel
Arduino Pro Micro based
Acts as a gamepad or keyboard/mouse. While plugging in, hold BTN-A for 3-4s for gamepad mode. Hold BTN-B instead for keyboard/mouse mode.
USB-C Input

Video Guide

A really low-quality video guide series I made at 4:00am: https://www.youtube.com/playlist?list=PLSlCMOwxujV7-DYrM4eC2Sb4_rMR5udEE .
- Perhaps it will be useful to some of you.

General Assembly Instructions

3D print case and cover
Cut vinyls: layer1, layer2, cover_v2
Weed vinyls(remove excess).
Clean face with rubbing/isopropyl alcohol and apply skin using transfer tape. Apply layer1, then layer2. Then apply cover.
- Note: Shine a flashlight on the case's corner to more easily see where to line up the skin. I make my skins every so slightly smaller than the actual face for more leeway. The skin's width is ~169mm (scale the skin proportionally).
- Note 2: Apply to the best of your ability, with even spacing along all sides. The skin's width is ~165mm (scale the skin proportionally).
Insert Gateron switches and secure each corner of the switch with hot glue on the inside. See video Part 1 for details.
Using a soldering iron, tin all contacts on the Gateron switches.
Wire up all the common/ground for the switches and the encoders. See video Part 2 for details.
Wire up all the switches and encoders with their own individual wire.
Solder all the wires to the board. See video Part 3 for details.
- Arduino Pro Micro Pinout
  - VOL-L A 2
  - VOL-L B 3
  - VOL_R A RXI
  - VOL_R B TXO
  - BT_ST 4
  - BT_A 5
  - BT_B 6
  - BT_C 7
  - BT_D 8
  - FX_L 9
  - FX_R 10
Plug in your arduino and flash firmware. See video Part 4 for details.
BOOT IN KEYBOARD MODE(Hold the second button from the left for 3-4s while plugging it in). TEST to make sure everything works. See video Part 5 for details.
Plug in micro usb to USB-C adapter cable into the arduino. Slide arduino into its slot and route the USB-C cable. See video Part 6 for details.
Push encoders through their holes. Mount with washer and nut.
Bend metal encoder mounting tabs 45 degrees outward. Additionally, bend one of the protrusions slightly inward so it doesn't collide with the micro usb cable.
Do some cable management. Carefully flatten the cables.
Hot glue USB-C port.
Slide in the cover and secure with M3x5 screw. PLEASE be careful, as you are threading into plastic and thus the hole is easily strippable. See video Part 7 for details.
Wipe circles on the bottom with rubbing/isopropyl alcohol. Apply adhesive rubber feet.
Mount keycaps. See video Part 8 for details.
Mount knobs. Use the arduino pin headers as a spacer on each side so the knobs are the same height and don't rub on the encoder nub.

Done. Enjoy!!

Parts Required:

1x 3D Printed Case (1.2mm walls, top, bottom layers; 20-25% infill minimum)
1x 3D Printed Cover
1x layer1 Vinyl Skin [width is ~169mm (scale the skin proportionally)]
1x layer2 Vinyl Skin [width is ~169mm (scale the skin proportionally)]
1x cover Vinyl Skin [width is ~165mm (scale the skin proportionally)]
7x Gateron Red Keyswitches
2x Bourns PEC16-2015F-N0024 Encoders
1x 1x1 G20 Keycap
4x 1x1.25 G20 Keycap
2x 1x2 G20 Keycap
2x 20mm Diameter Solid Aluminum Knobs (20mm high used, 17-22mm height should work as well)
1x Arduino Pro Micro
6x Rubber Feet (0.8-1cm in diameter)
1x Micro USB Male to USB C Female (27cm length)
1x M3x5 Screw
Cat5e Cable (~2 feet, strip it open and take a twist of wire)
Hot Glue
Solder
USB C cable (preferably one with deep insertion)

Recommended Tools/Etc.

Temperature Controlled Soldering Iron
Hot Glue Gun
Needle Nose Pliers
Phillips Screwdriver (if you use a phillips head M3 screw)
Allen Key (for knobs' grubscrew, M3 screw if you have a hex head)
Rubbing/Isopropyl Alcohol
Microfiber Cloth (for cleaning w/ alcohol)
Eye Protection + Safety Mask

Links I used to make the first batch of 10

NOTE: Links dead? See /IMAGES/screenshots/ for an example of what you are looking for!

Gateron Red Keyswitches: https://kbdfans.com/collections/gateron-swithes/products/gateron-swtich-3pin-or-5pin?variant=35765199373
Bourns PEC16-2015F-N0024 Encoders: https://www.mouser.com/ProductDetail/Bourns/PEC16-2015F-N0024?qs=sGAEpiMZZMsWp46O%252Bq11WTXwm4kPVvHwmPh3cKfowck%3D
1x1 G20 Keycap (BCT): https://pimpmykeyboard.com/g20-1-space-pack-of-10/
1x1.25 G20 Keycap (WAN): https://pimpmykeyboard.com/g20-1-25-space-pack-of-4/
1x2 G20 Keycap (NEM): https://pimpmykeyboard.com/g20-2-space-pack-of-4/
20mm Diameter Solid Aluminum Knobs: https://www.aliexpress.com/item/32912465745.html?spm=a2g0o.cart.0.0.43bd3c00dwdyAf&mp=1
Arduino Pro Micro (WARNING: CONTAINS 10): https://www.aliexpress.com/item/4000045084392.html
Rubber Feet: https://www.ebay.com/itm/50PCS-Rubber-Feet-Clear-Semicircle-Bumpers-Door-Silicone-Buffer-Pad-Furniture/152925672374
Micro USB Male to USB C Female: https://www.aliexpress.com/item/32983342667.html
M3x5 Screw: https://www.ebay.com/itm/20X-M3-3-80mm-Round-Pan-Head-Phillips-Screws-304-Stainless-Steel-Machine-Screws/302237442873?
USB C cable (WARNING: CONTAINS 10): https://www.aliexpress.com/item/33032210292.html

Miscellaneous Info

I recommend printing the case in a solid dark color so that the pro micro LED doesn't shine through. Then print the cover in a transparent/white color so that the pro micro LED shines through on the bottom, acting as a neat little power LED.
If the rubber feet aren't doing their job, they're probably dusty. Wipe them down with a little bit of rubbing alcohol.
Encoders have an initial break-in period. If they are stiff, rotate them for a few minutes to break them in.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Thanks To

Cammy for helping me build my first minicon. The Pocket SDVX uses a slightly modified version of his firmware.
Everyone in the Cons & Stuff Discord channel.
mon for his initial development of the Pocket Voltex.
The 10 people who purchased my first exclusive batch of Pocket SDVXs! Thanks to you guys, I can get a full-size controller as well!