How to program an excavator with deviation?

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24 Jun 2020 12:59 #76518 by RingoD
Hello deviation community,

my name is Philipp and I´m a scale model builder from Germany. I have built an Liebherr R920 compact excavator. Now I want to control this machine by using my devo 10 with the deviation firmware. I have added a picture of the transmitter and the channel assignment, slightly optimized for my needs ;-)



I would be very thankful if someone can help me to programm the mixers to power the excavator. Maybe someone did it before and can share his programming.

For example I want to programm the tracks like this:

If you keep pushing the ELE D/R button on the Joystick you can use this Joystick (THRO and RUDD) to drive the excavator forward or backward resp. to the left and right. If you release the ELE D/R button you can use the Joystick to control the other funktions for digging. So that there will be no driving without pushing the ELE D/R button.

I think that I also have to change the channels from the transmitter so that they fit to the channel assignment at the receiver in the excavator. How to do this?

Many thanks
Philipp
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01 Aug 2020 20:12 #76650 by wukong
Replied by wukong on topic How to program an excavator with deviation?
Hi,

Interesting project you have going on.

I would set up a complex mixer for your needs, set the switch for the complex mixer to ELE D/R switch.

To map the channel to the controls, just use the mixer menu. Manual link: www.deviationtx.com/user-manual/user-manual-7e-10 under section 9.2

Unfortunately, i can't really programme the mixer for your without knowing all the info.

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21 Aug 2020 08:49 #76712 by RingoD
Replied by RingoD on topic How to program an excavator with deviation?
Hi wukong,

thank you for replying. Unfortunately I wasn´t able jet to solve my problem, so I will make some changes.

I want to set a complex mixer which should do something like this.

For example the left track should only move if you keep pushing the ELE D/R button (ELE D/R 1) and move the THRO channel forward or backwards.

The ELE D/R Button is the one on top of the stick between the two screws.

Maybe this description is much more helpful for you.

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30 Aug 2020 16:55 - 30 Aug 2020 16:57 #76731 by wukong
Replied by wukong on topic How to program an excavator with deviation?

RingoD wrote: Hi wukong,

thank you for replying. Unfortunately I wasn´t able jet to solve my problem, so I will make some changes.

I want to set a complex mixer which should do something like this.

For example the left track should only move if you keep pushing the ELE D/R button (ELE D/R 1) and move the THRO channel forward or backwards.

The ELE D/R Button is the one on top of the stick between the two screws.

Maybe this description is much more helpful for you.


There's quite a few ways to do it. One way is as follows:
2 page complex mixer.

Page 1:
Source: THR
Mux: replace
Curve: 1-to-1

Page 2:
source: ELE D/R 0
Mux: replace
Curve: fixed
Offset: -100 (value = 0)

In this complex mixer, the output will always be 0 when ELE D/R 0 is activated, and only follow the THR when ELE D/R !=0, or i.e. ELE D/R 1 is on.
Last edit: 30 Aug 2020 16:57 by wukong. Reason: correct typo

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