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grbl-sender/docs/todo.txt
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2023-05-09 14:30:39 +03:00

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Heightmap probing:
1. define the grid:
DONE - from: x, y
DONE - to: x, y
DONE - step every: 5mm?
- clearance height: Z1.5
- start probing at: Z0.5
- max negative z: Z-0.5 (when to fail probing)
- z final safety height: Z15
DONE - from and to can be filled from current project bounding box
2. probing
- machine moves at grid start position (x, y)
G0X0Y0
- gets down for initial probing
G38.2 Z-65 F100
- step back a bit (1mm, relative)
G91 G0 Z1
- seek again with lower feed rate
G38.2 Z-5 F5
- after first probe ever, this Z becomes reference 0
G10 L20 P0 Z0
- all subsequent probes will be relative to this
- for each probing location:
- G0 Z"clearance height"
- G0 XxxYyyy (next point location)
- G0 Z"start probing at"
- G38.2 Z-5 F5
- store Z offset and place it in the heightmap
3. modify loaded program with heightmap data
- foreach line in program
- if line contains a Z coordinate, update the Z according to the X and Y
- if line does not contain a Z coordinate, add a Z coordinate according to the X and Y
Edge finding
- prerequisites
- which edge to find? -X/+X/-Y/+Y
- bit diameter used
- put the
Corner finding
- which corner are we probing: up left, up right, bottom left, bottom right
- need to know the bit diameter
- use G38.2 to probe X edge and set that as current X - diam/2
Render arcs
Render quadratic splines
Render bezier splines
Synchronize executing program with render (show executed paths with different colors)
Show a progress bar when executing programs.
Add aggressive buffer execution policy and make it selectable.
DONE - Show program extents
DONE - Render program extents
DONE - show a bounding box for the program extents