- Wheelwriter_XT_MAshup.jpg (139.92 KiB) Viewed 6354 times
The first task was to see if I could even get the Wheelwriter keyboard assembly to fit. The Wheelwriter backplate is about 1/4-1/2 an inch too wide on the left of the function keys (looking at the barrel plate), and there was interference with the posts in the case and needed a little trimmed off the top sides to let the feet lay flat inside the case. None of this requires removal of barrel plate so it the plate can be trimmed without disassembly. This was possible with modification via grinder of the backplate. (NOTE: This is the time to consider a screw or bolt mod. I just wanted to test this out so I didnt, but using a grinder can certainly pop some rivets.)
- plate_cropped.jpg (1.45 MiB) Viewed 8957 times
- rough_fit.jpg (1.2 MiB) Viewed 8957 times
- FrankenXT-2.jpg (1.52 MiB) Viewed 8957 times
I assigned an 16x8 matrix in QMK and used some debugging functions to map the matrix. The following is the matrix layout for the Wheelwriter 70, in column/row pairs, other Wheelwriters may be different as they seem to use different membranes for the smaller layouts.
- wheelwriter-layout-matrix.png (32.3 KiB) Viewed 8957 times
Code: Select all
// Keep the Wheelwriter matrix at 16 columns to maintain implementation
// consistency using the Default mappings, but cols 0 and F are not used
#define LAYOUT_wheelwriter70( \
K4A, K4B, K4C, K4D, K4E, K4F, K4G, K4H, K4I, K4J, K4K, K4L, K4M, K4N, K4O, K4P, K4Q, K4R, K4S, K4T, \
K3A, K3B, K3C, K3D, K3E, K3F, K3G, K3H, K3I, K3J, K3K, K3L, K3M, K3N, K3O, K3Q, K3R, K3S, K3T, \
K2A, K2B, K2C, K2D, K2E, K2F, K2G, K2H, K2I, K2J, K2K, K2L, K2M, K2N, K2O, K2Q, K2R, K2S, K2T, \
K1A, K1B, K1C, K1D, K1E, K1F, K1G, K1H, K1I, K1J, K1K, K1L, K1M, K1N, K1O, K1Q, K1S, \
K0A, K0B, K0E, K0J, K0O, K0Q, K0R, K0S, K0T \
) \
{ \
/* 00 */ { KC_NO, K0B, K0A, KC_NO, KC_NO, KC_NO, KC_NO, K2H, K2I, KC_NO, KC_NO, K2N, K2Q, K0S, KC_NO, KC_NO }, \
/* 01 */ { KC_NO, K1A, K1B, KC_NO, K2D, K2E, K2F, K2G, K2J, K2K, K2L, K2M, K2R, K2S, KC_NO, KC_NO }, \
/* 02 */ { KC_NO, K4A, K4B, KC_NO, K4C, KC_NO, KC_NO, K4H, K4I, K4O, KC_NO, K4N, K4Q, K4S, KC_NO, KC_NO }, \
/* 03 */ { KC_NO, K3A, KC_NO, KC_NO, K4D, K4E, K4F, K4G, K4J, K4K, K4L, K4M, K4R, K4T, KC_NO, KC_NO }, \
/* 04 */ { KC_NO, K3B, K3C, KC_NO, K3D, K3E, K3F, K3G, K3J, K3K, K3L, K3M, K3R, K3S, KC_NO, KC_NO }, \
/* 05 */ { KC_NO, K2A, K2B, KC_NO, KC_NO, KC_NO, KC_NO, K3H, K3I, K3O, KC_NO, K3N, KC_NO, K3T, KC_NO, KC_NO }, \
/* 06 */ { KC_NO, KC_NO, K2C, K1Q, K1E, K1F, K1G, K1H, K1K, K1L, K1M, KC_NO, K1S, K2T, KC_NO, KC_NO }, \
/* 07 */ { KC_NO, K0J, K0Q, K1C, KC_NO, KC_NO, KC_NO, K1I, K1J, KC_NO, KC_NO, K1N, K0R, K0T, K0E , KC_NO }, \
}
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
Code: Select all
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
[0] = LAYOUT_wheelwriter70( /* Base layer */
KC_F1, KC_F2, KC_ESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_NO, KC_BSPC, KC_PSCR, KC_SLCK, KC_PAUS,
KC_F3, KC_F4, KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_INS, KC_HOME, KC_PGUP,
KC_F5, KC_F6, KC_CLCK, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_NUHS, KC_ENT, KC_DEL, KC_END, KC_PGDN,
KC_F7, KC_F8, KC_LSFT, KC_NUBS, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_NO, KC_RSFT, KC_UP,
KC_F9, KC_F10, KC_LCTL, KC_SPACE, KC_RCTL, KC_RALT, KC_LEFT, KC_DOWN, KC_RGHT
),
};
- mstar_triomate_connection.jpg (962.67 KiB) Viewed 8957 times
- wheelwriter70_qmk.jpg (912.82 KiB) Viewed 8957 times
I have been able to get this to compile with the VIA toolkit and allow dynamic update of layout. You have to build a layout file below to load into the Design Tab, using the "Use V2 definitions" option enabled. You can then go to the Configure Tab to modify the mapping. The "vendorId" and "productId" in this file need to match the values in the QMK build with VIA enabled. I was only allowed to build with 3 layers due to a constraint in the compiler for the STM32. The pairs in the text are row, col mappings of the matrix to the key in KLE layout format. FYI the row, col layout was very annoying as I had already documented my matrix in col, row format, so I had to go and swap all the pairs around in my KLE file...
Code: Select all
{
"name": "MStar Wheelwriter70",
"vendorId": "0xFEED",
"productId": "0xB155",
"lighting": "none",
"matrix": { "rows": 8, "cols": 16 },
"layouts": {
"keymap": [
[
"2,1",
"2,2",
{
"x": 0.25
},
"2,4 ",
"3,4 ",
"3,5 ",
"3,6 ",
"3,7 ",
"2,7 ",
"2,8 ",
"3,8 ",
"3,9 ",
"3,10",
"3,11",
"2,11",
"2,9 ",
{
"w": 2
},
"2,12",
{
"x": 0.25
},
"3,12",
"2,13",
"3,13"
],
[
"3,1",
"4,1",
{
"x": 0.25,
"w": 1.5
},
"4,2 ",
"4,4 ",
"4,5 ",
"4,6 ",
"4,7 ",
"5,7 ",
"5,8 ",
"4,8 ",
"4,9 ",
"4,10",
"4,11",
"5,11",
"5,9 ",
{
"w": 1.5,
"h": 2,
"w2": 2.25,
"h2": 1,
"x2": -0.75,
"y2": 1
},
"0,12",
{
"x": 0.25
},
"4,12",
"4,13",
"5,13"
],
[
"5,1",
"5,2",
{
"x": 0.25,
"w": 1.75
},
"6,2 ",
"1,4 ",
"1,5 ",
"1,6 ",
"1,7 ",
"0,7 ",
"0,8 ",
"1,8 ",
"1,9 ",
"1,10",
"1,11",
"0,11",
{
"x": 2.5
},
"1,12",
"1,13",
"6,13"
],
[
"1,1",
"1,2",
{
"x": 0.25,
"w": 2.25
},
"7,3 ",
"6,4 ",
"6,5 ",
"6,6 ",
"6,7 ",
"7,7 ",
"7,8 ",
"6,8 ",
"6,9 ",
"6,10",
"7,11",
{
"w": 2.75
},
"6,3",
{
"x": 1.25
},
"6,12"
],
[
"0,2",
"0,1",
{
"x": 3,
"w": 2.5
},
"7,14",
{
"w": 7
},
"7,1",
{
"x": 1.25,
"w": 1.5
},
"7,2",
{
"x": 0.25
},
"7,12",
"0,13",
"7,13"
]
]
}
}
- MSTAR_VIA.jpg (218.87 KiB) Viewed 8555 times
After cutting the Wheelwriter cover to fit over the barrel plate and inside the case we finally have something that looks like it might have come from the factory. When trimming the Wheelwriter cover remember to leave extra space (1/4in) to the right of the nav cluster as the case has a little extra gap there. Here is how it turned out....
- FrankenXT.2jpg.jpg (1.01 MiB) Viewed 6354 times
very happy , hope it gets here soon 
)