7 - Setting up Home, Zero & Limits¶
▶ 7 - Setting up Home, Zero & Limits — Watch on YouTube
okay when you first power on the units okay when you first power on the units uh it's important to do something called uh it's important to do something called uh it's important to do something called homing or zeroing uh it refers to the homing or zeroing uh it refers to the homing or zeroing uh it refers to the same thing um the reason for that is same thing um the reason for that is same thing um the reason for that is that uh basically the software has to that uh basically the software has to that uh basically the software has to know where the rig is when you start know where the rig is when you start know where the rig is when you start doing a shot um and the way it knows doing a shot um and the way it knows doing a shot um and the way it knows that is through homing or zeroing it's that is through homing or zeroing it's that is through homing or zeroing it's important because if you uh accidentally important because if you uh accidentally important because if you uh accidentally uh have the power turned off maybe uh have the power turned off maybe uh have the power turned off maybe somebody's unplugged a cable or there is somebody's unplugged a cable or there is somebody's unplugged a cable or there is a power cut or potentially you're a power cut or potentially you're a power cut or potentially you're shooting a shot now and you're going to shooting a shot now and you're going to shooting a shot now and you're going to shoot the second half of that shot maybe shoot the second half of that shot maybe shoot the second half of that shot maybe uh in a different location or two months uh in a different location or two months uh in a different location or two months down the line the for the move to match down the line the for the move to match down the line the for the move to match exactly it has to start from a known exactly it has to start from a known exactly it has to start from a known position and that's what homing is all position and that's what homing is all position and that's what homing is all about when you first parir out the rig about when you first parir out the rig about when you first parir out the rig it has to know where it is and then you it has to know where it is and then you it has to know where it is and then you can do your you can do all your shoot can do your you can do all your shoot can do your you can do all your shoot the way this is done with the cot mini the way this is done with the cot mini the way this is done with the cot mini is actually the arm when you power on it is actually the arm when you power on it is actually the arm when you power on it actually knows where everything is so actually knows where everything is so actually knows where everything is so that's not so important but the track on that's not so important but the track on that's not so important but the track on the other hand it can vary you might be the other hand it can vary you might be the other hand it can vary you might be on one length now and on three lengths on one length now and on three lengths on one length now and on three lengths later um and depending on how you're later um and depending on how you're later um and depending on how you're using it your homing position may change using it your homing position may change using it your homing position may change also your limits your actual limits how also your limits your actual limits how also your limits your actual limits how far the rig can travel on the rails that far the rig can travel on the rails that far the rig can travel on the rails that can change as well but before you can can change as well but before you can can change as well but before you can set set your limits you always have to set set your limits you always have to set set your limits you always have to home it um now the way this is done is home it um now the way this is done is home it um now the way this is done is that on the racking here we have magnets that on the racking here we have magnets that on the racking here we have magnets and in my pocket somewhere I have a and in my pocket somewhere I have a and in my pocket somewhere I have a magnet we have a little magnet and that magnet we have a little magnet and that magnet we have a little magnet and that is attached to the racking and there's a is attached to the racking and there's a is attached to the racking and there's a sensor underneath the base that sensors sensor underneath the base that sensors sensor underneath the base that sensors that magnet and it uses uh those magnets that magnet and it uses uh those magnets that magnet and it uses uh those magnets um there's one normally somewhere along um there's one normally somewhere along um there's one normally somewhere along the rail that's your what's referred to the rail that's your what's referred to the rail that's your what's referred to as the datum or the Z sing sensor or as the datum or the Z sing sensor or as the datum or the Z sing sensor or saring magnet and then there's the limit saring magnet and then there's the limit saring magnet and then there's the limit magnet which are you normally have one magnet which are you normally have one magnet which are you normally have one at one end and one at the other end and at one end and one at the other end and at one end and one at the other end and that's more of a protective uh device to that's more of a protective uh device to that's more of a protective uh device to stop you going too stop you going too stop you going too far so what happens is when you tell it far so what happens is when you tell it far so what happens is when you tell it in the software to zero it'll start in the software to zero it'll start in the software to zero it'll start moving in one direction looking for the moving in one direction looking for the moving in one direction looking for the data magnets okay and once it finds it data magnets okay and once it finds it data magnets okay and once it finds it that's what it that's what it sets as that's what it that's what it sets as that's what it that's what it sets as its zero position it'll set the track to its zero position it'll set the track to its zero position it'll set the track to zero and it's referred to as the zero zero and it's referred to as the zero zero and it's referred to as the zero position or um the the datum or the home position or um the the datum or the home position or um the the datum or the home okay um so in the software I'm going to okay um so in the software I'm going to okay um so in the software I'm going to do that now so there are several ways of do that now so there are several ways of do that now so there are several ways of doing it firstly you have a zeroing menu doing it firstly you have a zeroing menu doing it firstly you have a zeroing menu up here and if I go zero and then you go up here and if I go zero and then you go up here and if I go zero and then you go home axis and instead of doing all axes home axis and instead of doing all axes home axis and instead of doing all axes I'm going to do track individually I'm going to do track individually I'm going to do track individually you'll see it starts you'll see it starts you'll see it starts moving it's found the magnet and now moving it's found the magnet and now moving it's found the magnet and now it's just moving off it so it's not it's just moving off it so it's not it's just moving off it so it's not actually sitting on it and then it'll actually sitting on it and then it'll actually sitting on it and then it'll set that as its home position okay so set that as its home position okay so set that as its home position okay so actually what it did was I've told it in actually what it did was I've told it in actually what it did was I've told it in the software to always have a 20 cm the software to always have a 20 cm the software to always have a 20 cm offset or thereabouts from the sensor offset or thereabouts from the sensor offset or thereabouts from the sensor back away from it okay um it's important back away from it okay um it's important back away from it okay um it's important when you power up that you are this side when you power up that you are this side when you power up that you are this side of the sensor so that as it travels of the sensor so that as it travels of the sensor so that as it travels towards it it finds it when it's on this towards it it finds it when it's on this towards it it finds it when it's on this side it doesn't know that the magnet's side it doesn't know that the magnet's side it doesn't know that the magnet's here it doesn't know it has to change here it doesn't know it has to change here it doesn't know it has to change the Direction so before you zero it the Direction so before you zero it the Direction so before you zero it before you home it always move it to before you home it always move it to before you home it always move it to this side of the magnet if it if it's this side of the magnet if it if it's this side of the magnet if it if it's not okay so if I powered up and I found not okay so if I powered up and I found not okay so if I powered up and I found that actually my that actually my that actually my track was somewhere over here the first track was somewhere over here the first track was somewhere over here the first thing I would do is I would actually thing I would do is I would actually thing I would do is I would actually move it back so it's the other side of move it back so it's the other side of move it back so it's the other side of the magnet and then tell it to home now magnet and then tell it to home now before I HED by going here I can also go before I HED by going here I can also go before I HED by going here I can also go home by right clicking here and say not home by right clicking here and say not home by right clicking here and say not go to home because that will just go go to home because that will just go go to home because that will just go there I go zero home that will actually there I go zero home that will actually there I go zero home that will actually look for the magnets okay okay found the magnet moves off it okay okay found the magnet moves off it slowly and then once it's finished doing slowly and then once it's finished doing slowly and then once it's finished doing that it does its zero offset it moves that it does its zero offset it moves that it does its zero offset it moves away from it by the whatever amount I've away from it by the whatever amount I've away from it by the whatever amount I've set it to in the software okay once set it to in the software okay once set it to in the software okay once you've done that you can then set your you've done that you can then set your you've done that you can then set your limits of travel now there are three limits of travel now there are three limits of travel now there are three different types of limits there's a different types of limits there's a different types of limits there's a physical limit physical limit physical limit so here we have a buffer this is a so here we have a buffer this is a so here we have a buffer this is a physical limit if it runs into it the physical limit if it runs into it the physical limit if it runs into it the motor will switch off because you'll see motor will switch off because you'll see motor will switch off because you'll see that there's some kind of obstruction in that there's some kind of obstruction in that there's some kind of obstruction in the way there is also a magnetic limit the way there is also a magnetic limit the way there is also a magnetic limit okay so that's using the same type of okay so that's using the same type of okay so that's using the same type of magnets that's embedded within the magnets that's embedded within the magnets that's embedded within the racking and if I now were to add had racking and if I now were to add had racking and if I now were to add had several more rails here I'd have to take several more rails here I'd have to take several more rails here I'd have to take this magnet out and put it at the end of this magnet out and put it at the end of this magnet out and put it at the end of my rail the new position so I've already my rail the new position so I've already my rail the new position so I've already got the magnet here so if I now move got the magnet here so if I now move got the magnet here so if I now move backwards okay and I move over that backwards okay and I move over that backwards okay and I move over that magnet so I'm going to move my move magnet so I'm going to move my move magnet so I'm going to move my move forward okay it's actually hit my Magnet forward okay it's actually hit my Magnet forward okay it's actually hit my Magnet or not hit it it sensed my magnet and or not hit it it sensed my magnet and or not hit it it sensed my magnet and turned the motor off you'll see here my turned the motor off you'll see here my turned the motor off you'll see here my track has turned off and it's told about track has turned off and it's told about track has turned off and it's told about it okay uh the reason for that is it okay uh the reason for that is it okay uh the reason for that is because I haven't set my soft limit because I haven't set my soft limit because I haven't set my soft limit correctly I'm going to show you how to correctly I'm going to show you how to correctly I'm going to show you how to set my set the soft limit correctly so set my set the soft limit correctly so set my set the soft limit correctly so for this I'm going to turn my track back for this I'm going to turn my track back for this I'm going to turn my track back on now once I turn my track back on I on now once I turn my track back on I on now once I turn my track back on I have 3 seconds in which to move it off have 3 seconds in which to move it off have 3 seconds in which to move it off the magnet it's currently sitting on the the magnet it's currently sitting on the the magnet it's currently sitting on the magnet so if I turn it on and I wait 3 magnet so if I turn it on and I wait 3 magnet so if I turn it on and I wait 3 seconds you'll see it'll turn back off seconds you'll see it'll turn back off seconds you'll see it'll turn back off again okay I'm going to turn it back on again okay I'm going to turn it back on again okay I'm going to turn it back on and I'm going to just move it off my and I'm going to just move it off my and I'm going to just move it off my magnet okay now I'm off it okay and I magnet okay now I'm off it okay and I magnet okay now I'm off it okay and I can set this as my soft limits and I do can set this as my soft limits and I do can set this as my soft limits and I do that by going to setups access setup and that by going to setups access setup and that by going to setups access setup and there's lots of different numbers on there's lots of different numbers on there's lots of different numbers on here I don't really care about any of here I don't really care about any of here I don't really care about any of those except for my limits minimum and those except for my limits minimum and those except for my limits minimum and maximum okay now here this is my this is maximum okay now here this is my this is maximum okay now here this is my this is where it's currently sitting at 30 where it's currently sitting at 30 where it's currently sitting at 30 cm so I can type that in or I can cm so I can type that in or I can cm so I can type that in or I can actually just press this button here and actually just press this button here and actually just press this button here and it stores that and and I press apply it stores that and and I press apply it stores that and and I press apply apply means that it will use it okay if apply means that it will use it okay if apply means that it will use it okay if I save it it'll also store it to dis so I save it it'll also store it to dis so I save it it'll also store it to dis so if I then if uh turn flare off and if I then if uh turn flare off and if I then if uh turn flare off and reload it uh it'll as when I turn it reload it uh it'll as when I turn it reload it uh it'll as when I turn it back on it'll read it from disk but I'm back on it'll read it from disk but I'm back on it'll read it from disk but I'm for the moment I'm just going to apply for the moment I'm just going to apply for the moment I'm just going to apply as a temporary change okay and now if I as a temporary change okay and now if I as a temporary change okay and now if I move that way it moves it moves fine but move that way it moves it moves fine but move that way it moves it moves fine but if I move this way it gently stops if I move this way it gently stops if I move this way it gently stops before it hits the magnet and doesn't before it hits the magnet and doesn't before it hits the magnet and doesn't turn off so now I've correctly set my turn off so now I've correctly set my turn off so now I've correctly set my soft limit and I would do the same at soft limit and I would do the same at soft limit and I would do the same at the other end okay so it's very important to do that okay so it's very important to do that for uh the track if anything has changed for uh the track if anything has changed for uh the track if anything has changed um there are also limits for the lens um there are also limits for the lens um there are also limits for the lens Motors but these lens Motors that we use Motors but these lens Motors that we use Motors but these lens Motors that we use are quite intelligent so they're are quite intelligent so they're are quite intelligent so they're actually quite good at working out where actually quite good at working out where actually quite good at working out where the limit is when you power them on so the limit is when you power them on so the limit is when you power them on so if I just put this into free if I just put this into free if I just put this into free drive just go like this okay um if I drive just go like this okay um if I drive just go like this okay um if I need to change the lens okay need to change the lens okay need to change the lens okay uh or if I if for whatever reason for uh or if I if for whatever reason for uh or if I if for whatever reason for example the motor comes off and the lens example the motor comes off and the lens example the motor comes off and the lens is moved when I put it back on it won't is moved when I put it back on it won't is moved when I put it back on it won't know where it is so before I can move it know where it is so before I can move it know where it is so before I can move it I have to calibrate this lens and I do I have to calibrate this lens and I do I have to calibrate this lens and I do that by just pressing the calibrate that by just pressing the calibrate that by just pressing the calibrate button or pulling the power out and button or pulling the power out and button or pulling the power out and pushing it back in but it's easy just to pushing it back in but it's easy just to pushing it back in but it's easy just to press the calibrate button which is this press the calibrate button which is this press the calibrate button which is this one I just hold it one I just hold it one I just hold it in okay and then it'll start calibrating in okay and then it'll start calibrating in okay and then it'll start calibrating it's now moving it's flashing while it's it's now moving it's flashing while it's it's now moving it's flashing while it's doing that it finds the limits of that doing that it finds the limits of that doing that it finds the limits of that lens lens lens okay and then once it's finished it's okay and then once it's finished it's okay and then once it's finished it's ready to go and it just turns white no ready to go and it just turns white no ready to go and it just turns white no longer flashing