The Ekdahl FAR - Limits: Difference between revisions

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== Hard and soft limits, the range of possibilities and need for calibration ==

Before getting into the weeds of how to change strings and [[The Ekdahl FAR - ~~Getting started#bowing wheel~~|bowing wheel]]<nowiki/>s, you should know about the concept of ''hard'' and ''soft limits''.

Before getting into the weeds of how to [[The Ekdahl FAR - Changing the string|change strings]] and [[The Ekdahl FAR - Bowing wheels|bowing wheel]]<nowiki/>s, you should know about the concept of ''hard'' and ''soft limits''.

Within automated machining, a ''hard limit'' is simply a point beyond or below which a machine will not function - an example of a ''hard limit'' in the Ekdahl FAR is for instance the maximum speed of the bowing wheel; at a certain point the motor simply cannot go any faster. A ''soft limit'' is a point <u>before</u> the ''hard limit'' where the machine in question technically could go further, but beyond which it may not be reliable, could potentially run into trouble due to external circumstances, or simply won't provide any benefits. An example of a ''soft limit'' in the Ekdahl FAR is the maximum [[The Ekdahl FAR - Getting started#Pressure|pressure]] of the [[The Ekdahl FAR - ~~Getting started#bowing~~ jack|bowing jack]]; at some point the [[The Ekdahl FAR - ~~Getting started#bowing wheel~~|bowing wheel]] can be pressed so hard into the string that the motor simply won't have the power to keep up, this could result in the motor not emphasizing the correct overtones, the string distorting - or worst case, the motor overheating and being destroyed. A ''soft limit'' is placed before this point so that you won't run into these problems. All ''soft limits'' can be set by the user, but care has to be taken with limits that are there to protect the Ekdahl FAR. Other limits that are simply there to enhance the usability of the instrument can sometimes be tweaked to allow for "unmusical" behavior, which sometimes creates the most interesting sounds.

Within automated machining, a ''hard limit'' is simply a point beyond or below which a machine will not function - an example of a ''hard limit'' in the Ekdahl FAR is for instance the maximum speed of the bowing wheel; at a certain point the motor simply cannot go any faster. A ''soft limit'' is a point <u>before</u> the ''hard limit'' where the machine in question technically could go further, but beyond which it may not be reliable, could potentially run into trouble due to external circumstances, or simply won't provide any benefits. An example of a ''soft limit'' in the Ekdahl FAR is the maximum [[The Ekdahl FAR - Getting started#Pressure|pressure]] of the [[The Ekdahl FAR - Bowing jack|bowing jack]]; at some point the [[The Ekdahl FAR - Bowing wheels|bowing wheel]] can be pressed so hard into the string that the motor simply won't have the power to keep up, this could result in the motor not emphasizing the correct overtones, the string distorting - or worst case, the motor overheating and being destroyed. A ''soft limit'' is placed before this point so that you won't run into these problems. All ''soft limits'' can be set by the user, but care has to be taken with limits that are there to protect the Ekdahl FAR. Other limits that are simply there to enhance the usability of the instrument can sometimes be tweaked to allow for "unmusical" behavior, which sometimes creates the most interesting sounds.

The Ekdahl FAR offers ways of automatically calibrating some of these limits, others will have to be manually set. Currently there are ''hard'' and ''soft limits'' for the [[The Ekdahl FAR - ~~Getting started#pressure position~~|pressure position]], mute position and the hammer force.

The Ekdahl FAR offers ways of [[The Ekdahl FAR - Calibrations|automatically calibrating]] some of these limits, others will have to be [[The Ekdahl FAR - Configuration utility - Advanced tab|manually set]]. Currently there are ''hard'' and ''soft limits'' for the [[The Ekdahl FAR - Configuration utility - Advanced tab|pressure position]], [[The Ekdahl FAR - Configuration utility - Advanced tab|mute position]] and the [[The Ekdahl FAR - Configuration utility - Advanced tab|hammer force]].

== Pressure limits ==

The bow [[The Ekdahl FAR - Getting started#pressure|pressure]] has three preset positions associated with it; ''bow pressure position rest'', ''bow pressure position engage'' and the ''bow pressure position max''.

The ''bow pressure position rest'' is the lower ''soft limit'' and ''bow pressure position max'' is the upper ''soft limit''. All of these presets can be changed by the user and saved into the instrument. The ''bow pressure position rest'' is where the [[The Ekdahl FAR - ~~Getting started#bowing wheel~~|bowing wheel]] is completely disconnected from the string, thus starting the bowing motor in this position will not cause any contact-vibrations in the string (though the string could still start to resonate due to air turbulence created by the bowing wheel). The Ekdahl FAR will normally stay at the rest position when no key is pressed.

The ''bow pressure position rest'' is the lower ''soft limit'' and ''bow pressure position max'' is the upper ''soft limit''. All of these presets can be changed by the user and saved into the instrument. The ''bow pressure position rest'' is where the [[The Ekdahl FAR - Bowing wheels|bowing wheel]] is completely disconnected from the string, thus starting the bowing motor in this position will not cause any contact-vibrations in the string (though the string could still start to resonate due to air turbulence created by the bowing wheel). The Ekdahl FAR will normally stay at the rest position when no key is pressed.

Having the ''rest'' position correctly set is crucial in getting the most rapid action from the Ekdahl FAR, a ''rest'' position that is too far from the string will cause a noticeable latency from key press to wheel contact when playing, a position that is too close will result in the [[The Ekdahl FAR - ~~Getting started#bowing wheel~~|bowing wheel]] still touching the string and can create undesirable sounds when the bowing motor is winding down.

Having the ''rest'' position correctly set is crucial in getting the most rapid action from the Ekdahl FAR, a ''rest'' position that is too far from the string will cause a noticeable latency from key press to wheel contact when playing, a position that is too close will result in the [[The Ekdahl FAR - Bowing wheels|bowing wheel]] still touching the string and can create undesirable sounds when the bowing motor is winding down.

The ''bow pressure position engage'' is the point where the [[The Ekdahl FAR - ~~Getting started#bowing wheel~~|bowing wheel]] first makes contact with the string, this position is basically where the [[The Ekdahl FAR - ~~Getting started#bowing wheel~~|bowing wheel]] will normally go at a key press when all ''pressure modifications'' (''after touch'', ''pressure'' knob etc.) are set to zero. This position may or may not produce any audible sound as it should barely touch the string at this point.

The ''bow pressure position engage'' is the point where the [[The Ekdahl FAR - Bowing wheels|bowing wheel]] first makes contact with the string, this position is basically where the [[The Ekdahl FAR - Bowing wheels|bowing wheel]] will normally go at a key press when all ''pressure modifications'' (''after touch'', ''pressure'' knob etc.) are set to zero. This position may or may not produce any audible sound as it should barely touch the string at this point.

''Bow pressure position max'' represents the maximum ''soft limit'', any added pressure at this point will be ignored as further pressure could make the bowing motor be unable to keep its speed or make it go over its power limit (which will cause the motor to immediately shut down in order to protect it).

The pressures ''hard limits'', i.e. how far the [[The Ekdahl FAR - ~~Getting started#bowing~~ jack|bowing jack]] can physically move up and down, will sometimes have to be [[The Ekdahl FAR - Bowing jack#Adjusting the bowing jack|adjusted]].

The pressures ''hard limits'', i.e. how far the [[The Ekdahl FAR - Bowing jack|bowing jack]] can physically move up and down, will sometimes have to be [[The Ekdahl FAR - Bowing jack#Adjusting the bowing jack|adjusted]].

== Mute limits ==

@@ Line 1: / Line 1: @@
 == Hard and soft limits, the range of possibilities and need for calibration ==
-Before getting into the weeds of how to change strings and [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]]<nowiki/>s, you should know about the concept of ''hard'' and ''soft limits''.
+Before getting into the weeds of how to [[The Ekdahl FAR - Changing the string|change strings]] and [[The Ekdahl FAR - Bowing wheels|bowing wheel]]<nowiki/>s, you should know about the concept of ''hard'' and ''soft limits''.
-Within automated machining, a ''hard limit'' is simply a point beyond or below which a machine will not function - an example of a ''hard limit'' in the Ekdahl FAR is for instance the maximum speed of the bowing wheel; at a certain point the motor simply cannot go any faster. A ''soft limit'' is a point <u>before</u> the ''hard limit'' where the machine in question technically could go further, but beyond which it may not be reliable, could potentially run into trouble due to external circumstances, or simply won't provide any benefits. An example of a ''soft limit'' in the Ekdahl FAR is the maximum [[The Ekdahl FAR - Getting started#Pressure|pressure]] of the [[The Ekdahl FAR - Getting started#bowing jack|bowing jack]]; at some point the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] can be pressed so hard into the string that the motor simply won't have the power to keep up, this could result in the motor not emphasizing the correct overtones, the string distorting - or worst case, the motor overheating and being destroyed. A ''soft limit'' is placed before this point so that you won't run into these problems. All ''soft limits'' can be set by the user, but care has to be taken with limits that are there to protect the Ekdahl FAR. Other limits that are simply there to enhance the usability of the instrument can sometimes be tweaked to allow for "unmusical" behavior, which sometimes creates the most interesting sounds.
+Within automated machining, a ''hard limit'' is simply a point beyond or below which a machine will not function - an example of a ''hard limit'' in the Ekdahl FAR is for instance the maximum speed of the bowing wheel; at a certain point the motor simply cannot go any faster. A ''soft limit'' is a point <u>before</u> the ''hard limit'' where the machine in question technically could go further, but beyond which it may not be reliable, could potentially run into trouble due to external circumstances, or simply won't provide any benefits. An example of a ''soft limit'' in the Ekdahl FAR is the maximum [[The Ekdahl FAR - Getting started#Pressure|pressure]] of the [[The Ekdahl FAR - Bowing jack|bowing jack]]; at some point the [[The Ekdahl FAR - Bowing wheels|bowing wheel]] can be pressed so hard into the string that the motor simply won't have the power to keep up, this could result in the motor not emphasizing the correct overtones, the string distorting - or worst case, the motor overheating and being destroyed. A ''soft limit'' is placed before this point so that you won't run into these problems. All ''soft limits'' can be set by the user, but care has to be taken with limits that are there to protect the Ekdahl FAR. Other limits that are simply there to enhance the usability of the instrument can sometimes be tweaked to allow for "unmusical" behavior, which sometimes creates the most interesting sounds.
-The Ekdahl FAR offers ways of automatically calibrating some of these limits, others will have to be manually set. Currently there are ''hard'' and ''soft limits'' for the [[The Ekdahl FAR - Getting started#pressure position|pressure position]], mute position and the hammer force.
+The Ekdahl FAR offers ways of [[The Ekdahl FAR - Calibrations|automatically calibrating]] some of these limits, others will have to be [[The Ekdahl FAR - Configuration utility - Advanced tab|manually set]]. Currently there are ''hard'' and ''soft limits'' for the [[The Ekdahl FAR - Configuration utility - Advanced tab|pressure position]], [[The Ekdahl FAR - Configuration utility - Advanced tab|mute position]] and the [[The Ekdahl FAR - Configuration utility - Advanced tab|hammer force]].
 == Pressure limits ==
 The bow [[The Ekdahl FAR - Getting started#pressure|pressure]] has three preset positions associated with it; ''bow pressure position rest'', ''bow pressure position engage'' and the ''bow pressure position max''.
-The ''bow pressure position rest'' is the lower ''soft limit'' and ''bow pressure position max'' is the upper ''soft limit''. All of these presets can be changed by the user and saved into the instrument. The ''bow pressure position rest'' is where the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] is completely disconnected from the string, thus starting the bowing motor in this position will not cause any contact-vibrations in the string (though the string could still start to resonate due to air turbulence created by the bowing wheel). The Ekdahl FAR will normally stay at the rest position when no key is pressed.
+The ''bow pressure position rest'' is the lower ''soft limit'' and ''bow pressure position max'' is the upper ''soft limit''. All of these presets can be changed by the user and saved into the instrument. The ''bow pressure position rest'' is where the [[The Ekdahl FAR - Bowing wheels|bowing wheel]] is completely disconnected from the string, thus starting the bowing motor in this position will not cause any contact-vibrations in the string (though the string could still start to resonate due to air turbulence created by the bowing wheel). The Ekdahl FAR will normally stay at the rest position when no key is pressed.
-Having the ''rest'' position correctly set is crucial in getting the most rapid action from the Ekdahl FAR, a ''rest'' position that is too far from the string will cause a noticeable latency from key press to wheel contact when playing, a position that is too close will result in the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] still touching the string and can create undesirable sounds when the bowing motor is winding down.
+Having the ''rest'' position correctly set is crucial in getting the most rapid action from the Ekdahl FAR, a ''rest'' position that is too far from the string will cause a noticeable latency from key press to wheel contact when playing, a position that is too close will result in the [[The Ekdahl FAR - Bowing wheels|bowing wheel]] still touching the string and can create undesirable sounds when the bowing motor is winding down.
-The ''bow pressure position engage'' is the point where the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] first makes contact with the string, this position is basically where the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] will normally go at a key press when all ''pressure modifications'' (''after touch'', ''pressure'' knob etc.) are set to zero. This position may or may not produce any audible sound as it should barely touch the string at this point.
+The ''bow pressure position engage'' is the point where the [[The Ekdahl FAR - Bowing wheels|bowing wheel]] first makes contact with the string, this position is basically where the [[The Ekdahl FAR - Bowing wheels|bowing wheel]] will normally go at a key press when all ''pressure modifications'' (''after touch'', ''pressure'' knob etc.) are set to zero. This position may or may not produce any audible sound as it should barely touch the string at this point.
 ''Bow pressure position max'' represents the maximum ''soft limit'', any added pressure at this point will be ignored as further pressure could make the bowing motor be unable to keep its speed or make it go over its power limit (which will cause the motor to immediately shut down in order to protect it).
-The pressures ''hard limits'', i.e. how far the [[The Ekdahl FAR - Getting started#bowing jack|bowing jack]] can physically move up and down, will sometimes have to be [[The Ekdahl FAR - Bowing jack#Adjusting the bowing jack|adjusted]].
+The pressures ''hard limits'', i.e. how far the [[The Ekdahl FAR - Bowing jack|bowing jack]] can physically move up and down, will sometimes have to be [[The Ekdahl FAR - Bowing jack#Adjusting the bowing jack|adjusted]].
 == Mute limits ==