Advanced Drillhole Planner Settings

Drillhole Planner is an excellent tool for designing drill plans. The following settings relate to advanced use:

Fitting tolerance

How accurately target and collar positions of new or modified holes must match coordinate values that are locked. The default is 1, meaning that your hole target and/or collar must be within 1 measurement unit of locked values.

For example, considering the X coordinate of a collar alone, and a Lift deviation is applied to an existing hole. If Target coordinate is checked, an attempt is made to match the current target position within 1 measurement unit.

Reduce this tolerance to ensure a more accurate fit, but an increasing tendency for a failure to create a hole in particularly complex data sets.

Maximum number of passes

Drillhole Planner makes multiple attempts to find and refine the optimum fit for your drillhole settings.

By default, 10 attempts are made to design a hole that falls within the given Fitting Tolerance (see above) for both target and collar positions (whilst maintaining all other settings).

Increase this value if a hole solution cannot be found for your settings, but be aware that doing so can increase the time taken to provide a result.

Maximum hole length allowed

In extreme cases where a sensible solution cannot be found, a hole may be created of an arbitrarily long type, for example, if lift and drift settings make it impossible to return a practical result for a new hole.

You can limit the maximum hole length permitted using this value. If a hole cannot be created below the specified length, an error message displays: