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Sonny Jeon 2014-07-12 10:39:40 -06:00
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@ -16,9 +16,9 @@ Grbl includes full acceleration management with look ahead. That means the contr
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##Update Summary for v0.9 from v0.8 ##Update Summary for v0.9 from v0.8
- **BETA status: Minor bugs may exist. Under final testing for master release. Please report any issues to administrators so we can push this out quickly!** - **_BETA_ status:** Minor bugs may exist. Under final testing for master release. Please report any issues to administrators so we can push this out quickly!
- **NOTE: Default serial baudrate is now 115200! (Up from 9600)** - **IMPORTANT: Default serial baudrate is now 115200! (Up from 9600)**
- **NEW Super Smooth Stepper Algorithm:** Complete overhaul of the handling of the stepper driver to simplify and reduce task time per ISR tick. Much smoother operation with the new Adaptive Multi-Axis Step Smoothing (AMASS) algorithm which does what its name implies (see stepper.c source for details). Users should immediately see significant improvements in how their machines move and overall performance! - **_NEW_ Super Smooth Stepper Algorithm:** Complete overhaul of the handling of the stepper driver to simplify and reduce task time per ISR tick. Much smoother operation with the new Adaptive Multi-Axis Step Smoothing (AMASS) algorithm which does what its name implies (see stepper.c source for details). Users should immediately see significant improvements in how their machines move and overall performance!
- **Stability and Robustness Updates:** Grbl's overall stability has been focused on for this version. The planner and step-execution interface has been completely re-written for robustness and incorruptibility by the introduction of an intermediate step segment buffer that "checks-out" steps from the planner buffer in real-time. This means we can now fearlessly drive Grbl to it's highest limits. Combined with the new stepper algorithm and planner optimizations, this translated to **5x to 10x** overall performance increases in our testing! Also, for example, stability and robustness tests have been reported to easily take 1.4 million (yes, **million**) line g-code programs like a champ! - **Stability and Robustness Updates:** Grbl's overall stability has been focused on for this version. The planner and step-execution interface has been completely re-written for robustness and incorruptibility by the introduction of an intermediate step segment buffer that "checks-out" steps from the planner buffer in real-time. This means we can now fearlessly drive Grbl to it's highest limits. Combined with the new stepper algorithm and planner optimizations, this translated to **5x to 10x** overall performance increases in our testing! Also, for example, stability and robustness tests have been reported to easily take 1.4 million (yes, **million**) line g-code programs like a champ!
- **(x4)+ Faster Planner:** Planning computations improved four-fold or more by optimizing end-to-end operations, which included streamlining the computations and introducing a planner pointer to locate un-improvable portions of the buffer and not waste cycles recomputing them. - **(x4)+ Faster Planner:** Planning computations improved four-fold or more by optimizing end-to-end operations, which included streamlining the computations and introducing a planner pointer to locate un-improvable portions of the buffer and not waste cycles recomputing them.
- **G-Code Parser Overhaul:** Completely re-written from the ground-up for 100%-compliance* to the g-code standard. (* Parts of the NIST standard are a bit out-dated and arbitrary, so we altered some minor things to make more sense. Differences are outlined in the source code.) We also took steps to allow us to break up the g-code parser into distinct separate tasks, which is key for some future development ideas and improvements. - **G-Code Parser Overhaul:** Completely re-written from the ground-up for 100%-compliance* to the g-code standard. (* Parts of the NIST standard are a bit out-dated and arbitrary, so we altered some minor things to make more sense. Differences are outlined in the source code.) We also took steps to allow us to break up the g-code parser into distinct separate tasks, which is key for some future development ideas and improvements.