The 'Today's Job' thread

[6feetdown]

I've got the boom brush

 

[CPS]

I always thought the Ex60-5 punched well above its weight. I am pretty impressed with the Kobelco. This is also a conventional boom rather than a king post. I guess that helps with lifting and balance.

Kobelco was always nice too... the auld fella nearly bought an SK60 before he bought the EX60.
I think these ZX95's look the business now

 

[Rob65]

Would a radio remote from a model aircraft work for proportional controls? Not robust like the wireless controls found on Hiabs but depends what yoyu are after... Obviously you'd have to take the outputs from the receiver that usually drive servo motors and translate that using an Arduino and a mosfett driver board to allow you to drive the solenoids directly.

eBay might just have the answer for such a project without all the above complexity and a built in safety stop....

I’ve been scouring eBay as my hope is to be able to do this with modlel airplane gear if I can. I think a switch and a PWM motor speed controller might do this somehow.

The problem is I need to open a 24v solenoid operated switching valve as soon as the joy stick is moved from centre and then need the proportional valve to start to open and feed oil as the stick is moved further. The next problem is that I need to open a separate solenoid switched valve when the stick is moved back from centre but follow this with opening the same proportional valve as on the forward movement.

Any ideas how this can be done with off the shelf gear? I would like to try and avoid the need to use custom built electronics if I can as this is beyond my current abilities and I have a job coming up for this in feb so don’t have time to learn Arduino use etc.

The hydraulics on the machine are 3 phase electric and I currently have it running of a VFD. The VFD has a facility for external operation so connecting a remote emergency stop in to that should be fairly straight forwards.

Any help or words of wisdom would be appreciated.

 

[CPS]

I can provide proportional controllers which will do exactly what you want.... only thing is youd need one for each function..

 

[Smiffy]

I’ve been scouring eBay as my hope is to be able to do this with modlel airplane gear if I can. I think a switch and a PWM motor speed controller might do this somehow.

The problem is I need to open a 24v solenoid operated switching valve as soon as the joy stick is moved from centre and then need the proportional valve to start to open and feed oil as the stick is moved further. The next problem is that I need to open a separate solenoid switched valve when the stick is moved back from centre but follow this with opening the same proportional valve as on the forward movement.

Any ideas how this can be done with off the shelf gear? I would like to try and avoid the need to use custom built electronics if I can as this is beyond my current abilities and I have a job coming up for this in feb so don’t have time to learn Arduino use etc.

The hydraulics on the machine are 3 phase electric and I currently have it running of a VFD. The VFD has a facility for external operation so connecting a remote emergency stop in to that should be fairly straight forwards.

Any help or words of wisdom would be appreciated.

Depends how much time and money you want to spend and what is there already.
If all the cetops are in place already then plenty of companies will supply remote kits to fit them some cheaper than this.

Fully Proportional Remote Controls

www.approvedhydraulics.co.uk

 

[JerryRtilt]

Kobelco was always nice too... the auld fella nearly bought an SK60 before he bought the EX60.
I think these ZX95's look the business now
View attachment 67653View attachment 67654View attachment 67655View attachment 67656

Certainly a nice looking machine

 

[DaveDCB]

I can see that happening too

I used to love it, I’d Be out snow clearing from the second it started and days after it stopped, used to love it..(and the ££ wasn’t bad ) nowadays I’m no longer interested, happily have afew days off!

 

[jd6820]

I’ve been scouring eBay as my hope is to be able to do this with modlel airplane gear if I can. I think a switch and a PWM motor speed controller might do this somehow.

The problem is I need to open a 24v solenoid operated switching valve as soon as the joy stick is moved from centre and then need the proportional valve to start to open and feed oil as the stick is moved further. The next problem is that I need to open a separate solenoid switched valve when the stick is moved back from centre but follow this with opening the same proportional valve as on the forward movement.

Any ideas how this can be done with off the shelf gear? I would like to try and avoid the need to use custom built electronics if I can as this is beyond my current abilities and I have a job coming up for this in feb so don’t have time to learn Arduino use etc.

The hydraulics on the machine are 3 phase electric and I currently have it running of a VFD. The VFD has a facility for external operation so connecting a remote emergency stop in to that should be fairly straight forwards.

Any help or words of wisdom would be appreciated.

Sounds like @CPS has options for you to consider. It being 3 phase doesn't alter things too much as you can soon create a DC supply from the A/C should the equipment require such.

 

[hiluxman]

I used to love it, I’d Be out snow clearing from the second it started and days after it stopped, used to love it..(and the ££ wasn’t bad ) nowadays I’m no longer interested, happily have afew days off!

Definitely. Tho still get the odd one think the world revolvs around them and can't understand why you don't turn up.

Few years ago, i rang one of my regular customers saying I'm not coming it's snowing. Wasn't impressed, couldn't delay the job blar blar blar.
I turned up 3 or 4 days later. To the news that, on the dat I didn't come, he crashed his van off a round about, his brother crashed into another vehicle and his labourer got to the job only to get out of his car and watch it slide down the hill into another vehicle parked a good distance away.....n they thought I'd go out in a tipper with a digger in tow. Lol.

 

[CPS]

I used to love it, I’d Be out snow clearing from the second it started and days after it stopped, used to love it..(and the ££ wasn’t bad ) nowadays I’m no longer interested, happily have afew days off!

Yeah but you had a cab not sure id do to many hours in the multione

 

[Giles]

Did ya get distracted by something more urgent / interesting?

Got dragged to Hereford to see mrs family just got back tonight

 

[JerryRtilt]

Kobelco was always nice too... the auld fella nearly bought an SK60 before he bought the EX60.
I think these ZX95's look the business now
View attachment 67653View attachment 67654View attachment 67655View attachment 67656

I changed my EX60-5 for a EX80u as I needed a zero tailswing. Not a bad machine but no EX60.
They have moved on a bit !

 

[Rob65]

Sounds like @CPS has options for you to consider. It being 3 phase doesn't alter things too much as you can soon create a DC supply from the A/C should the equipment require such.

I mentioned the 3 phase and VFD to explain that an emergency stop would be simple.

I have the 24v system hard wired at the moment so I can prove the architecture of the system. It’s running from a simple transformer, bridge rectifier and smoothing capacitor hooked to the input on the VFD. It’s a bit ugly so I’ll probably use a cheap switch mode supply in the next build. One thing I’m a bit worried about is some cheap Chinese switch mode supplies are a bit noisy with RF emissions that might interfere with the control circuit.

 

[Rob65]

I can provide proportional controllers which will do exactly what you want.... only thing is youd need one for each function..

Aiden, are the controllers radio controlled and if so what sort of range can they cover?

The final use for this watching will be from several hundred meters away. This is why I have been looking towards 2.4ghz drone type operating systems.

 

[Storrsy]

I always thought the Ex60-5 punched well above its weight. I am pretty impressed with the Kobelco. This is also a conventional boom rather than a king post. I guess that helps with lifting and balance.

Totally. Hate using kingpost machines after being on my case cx75. The range of motion seems so much better, lifts higher/closer in and brings weight into center of machine- far superior over kingpost IMO.

 

[jd6820]

I mentioned the 3 phase and VFD to explain that an emergency stop would be simple.

I have the 24v system hard wired at the moment so I can prove the architecture of the system. It’s running from a simple transformer, bridge rectifier and smoothing capacitor hooked to the input on the VFD. It’s a bit ugly so I’ll probably use a cheap switch mode supply in the next build. One thing I’m a bit worried about is some cheap Chinese switch mode supplies are a bit noisy with RF emissions that might interfere with the control circuit.

To be honest that's what I imagined would be used for creating 24VDC, but a decent quality switch mode should have the necessary components to reduce noise, could also house away from the RF antenna which I'd expect to be mounted well away from noise on the exterior of the machine. The receiver would be shielded anyway so just need a good cable running between the two. The use of 2.4Ghz frequency might not be the best bet? A very busy frequency band, liable for noise? Distance reached by lower frequencies isn't an issue more just transmitter power that limits the range, I'm betting most remotes work at between 27 - 900Mhz, exceptions being 2.4 and 5 GHz. Drone controllers and trying to adapt to a custom rig sounds more complex to me than what you appear to be wanting? Plenty of 'off the shelf' systems about that will acheive what you are looking for without spending mega bucks. They usually come with software that can be tailored to your needs. If @CPS doesn't have a solution you feel meets your needs, we can look at alternatives and I'll offer some ideas.

 

[V8Druid]

Got dragged to Hereford to see mrs family just got back tonight

and you never called by for a cuppa !

 

[V8Druid]

Aiden, are the controllers radio controlled and if so what sort of range can they cover?

The final use for this will be watching from several hundred meters away. This is why I have been looking towards 2.4ghz drone type operating systems.

gonna need some good binoculars then

 

[Giles]

and you never called by for a cuppa !

Sheffield to weobly doesn’t swing by you lol plus 8 month old and 2.8 year old means what used to be a 3 hour journey is now a 6-7 hour journey and we have to go in wife’s quashqi as I can’t get two kids seats in my pickup and get my seat further enough back to drive it lol. So have to squeeze my self in hers to drive us down lol.

Was a flyer really to do present swap and see the girls 96 yr old great grandad old boy farmer.

 

[Rob65]

gonna need some good binoculars then

The plan to solve that problem is to fly a cheep drone in and land it near where the robot machine will be working to have a video feed back to the robot control point. Depending upon terrain a radio controlled model car or something with tracks might also work to carry the cameras.

The work the robot machine is going to be doing is likely going to need more than one angle of view to be able to work it properly.