# GRBL motion settings

#### Recommended GRBL parameters

Motion controller needs to know about actuator capabilities.

<table border="1" id="bkmrk-grbl-parameter-value" style="border-collapse: collapse; width: 100%; height: 116px;"><tbody><tr style="height: 29px;"><td class="align-center" style="width: 34.321%; height: 29px;">**GRBL parameter**</td><td class="align-center" style="width: 29.1357%; height: 29px;">**Value**</td><td class="align-center" style="width: 36.5432%; height: 29px;">**Definition**</td></tr><tr style="height: 29px;"><td style="width: 34.321%; height: 29px;">$100</td><td style="width: 29.1357%; height: 29px;">111.110</td><td style="width: 36.5432%; height: 29px;">X steps/mm</td></tr><tr style="height: 29px;"><td style="width: 34.321%; height: 29px;">$110</td><td style="width: 29.1357%; height: 29px;">20000.000</td><td style="width: 36.5432%; height: 29px;">X Max rate, mm/min</td></tr><tr style="height: 29px;"><td style="width: 34.321%; height: 29px;">$120</td><td style="width: 29.1357%; height: 29px;">2000.000</td><td style="width: 36.5432%; height: 29px;">X Acceleration, mm/sec<sup>2</sup></td></tr><tr><td style="width: 34.321%;">$130</td><td style="width: 29.1357%;">90.000</td><td style="width: 36.5432%;">X Max travel, mm</td></tr></tbody></table>

<p class="callout info">Assume motor is connected to X axis.</p>