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RC mobile Crane - 1:43
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 Posted: Mon Mar 20th, 2017 09:10 am
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Giles
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Hi Rod,



The transmitter is based on a standard Deltang 6 channel (I think!) job, which Andy at Micron had built up for me as a temporary TX, as he was going to build a special four-stick (plus one knob) one for me. This temporary TX was simply a series of knobs, which was exceedingly difficult to 'drive' without causing the crane damage through over-runs.



However, Andy found that (all) the joysticks he planned on using were not accurate enough and wouldn't do the job - so he regretfully declined to take it further.



I, with the innocence of ignorance, and the drive of necessity, had to make it work.



The solution was to use 'Thumb joysticks' (which Andy was intending) which used as they come didn't 'zero', and things were in motion when they shouldn't be. I solved that by the expediency of (channel by channel) removing the pot from the side of the assembly, filing off all the locating lugs, putting the pot back on, and rotating it until it 'zeroed' and all motion stopped, and glueing it back on in that position.

Crude, but eventually effective....



The top two sticks operate the truck, and the bottom two operate the three crane functions, and the knob (lower centre) operates the out-riggers.


Last edited on Mon Mar 20th, 2017 09:19 am by Giles



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Giles

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 Posted: Mon Mar 20th, 2017 09:25 am
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Rod Hutchinson
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Hi Giles,

I am really looking at three controls.

Throttle, Steering & Lights.

Using DT RX can steering be centre off with Left Right deflection for the turning using a rehostat or is it just a switch.



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Rod Hutchinson
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 Posted: Mon Mar 20th, 2017 10:01 am
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Giles
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Hi Rod,

For that you simply need the standard two-stick MLP4DSM Transmitter from ebay - its what I use. They can be set up for lights as well...



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Giles

The Loop. 0-16.5
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 Posted: Mon Mar 20th, 2017 10:45 am
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Tony Walsham
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Rod.
DSM2 is the operating protocol established by Horizon Hobbies for the Spektrum brand R/C.Other brands such as Futaba and JR cannot work with DSM2 protocols.
There are some brands compatible such as Orange, Lemon and Deltang that are compatible.The Deltang TX2 modules I and other builders employ will work any DSM2 R/X.
The DSM2 can be set up so that it works in a different fashion depending on requirements.
The DX3 is a Spektrum car controller.  It is lot different to the regular stick radios such as DX4 and DX5e.

DSM2 has morphed into DSMX which is now the uprated standard for TX's in The EU

Last edited on Mon Mar 20th, 2017 10:48 am by Tony Walsham



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 Posted: Mon Mar 20th, 2017 10:56 am
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Rod Hutchinson
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Thanks to Tony & Giles. The MLP4DSM tx might be the solution I am looking for.



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 Posted: Tue Mar 21st, 2017 09:56 am
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DavidT
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Rod, DSM2 is extremely popular in its 'Air' version. The 'Surface' and 'Marine' versions are much less dominant, have fewer receiver options in the market and they can be much harder to bind with my receivers.

The MLP4DSM/'Blade' transmitter is normally easy to find on ebay and is compatible with 'DSM2 air'. It would be a good choice although limited in range like my Tx2 product. My Tx2 allows you to make custom transmitters and many cheap joystick transmitters can be a donor for high quality joysticks.
Regards, David.

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 Posted: Wed Mar 22nd, 2017 12:07 am
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Rod Hutchinson
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To DavidT,
Initially I hoped to operate a car using a 'rx45b for car' and my TX22 transmitter but I don't think that is possible.
Can I use other DT TXs?

Last edited on Wed Mar 22nd, 2017 12:07 am by Rod Hutchinson



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 Posted: Wed Mar 22nd, 2017 12:44 am
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Rod Hutchinson
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I have just purchased a MLP4DSM/'Blade' transmitter  from the UK. 



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