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Bendtsen's brick's


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#101 matias bendtsen

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Posted 26 November 2012 - 09:30 PM

Time for another truck. :classic:
this time a volvo f88:
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sorry for quality, but it is winter in denmark, and only a few hours of daylight, and those i have to spend in scool. :hmpf_bad:
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more pics of the model here.

this will be rebuild into a three way tipper truck with crane and lowloader for a volvo LM loader, later this week. :sweet:

Efferman made two cranes some time ago (i used the small one on my equipment truck in the start of this thread) but where are they now, i cant find them anywhere anymore? :sad:
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#102 Meatman

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Posted 26 November 2012 - 09:40 PM

Very Nice models!

#103 Alasdair Ryan

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Posted 26 November 2012 - 11:34 PM

Nice truck,I look forward to the truck with the cane on it. :classic:
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Updated 10/03/15
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#104 olaf9198

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Posted 27 November 2012 - 10:19 AM

View Postmatias bendtsen, on 26 November 2012 - 09:30 PM, said:

sorry for quality, but it is winter in denmark, and only a few hours of daylight, and those i have to spend in scool. :hmpf_bad:

Efferman made two cranes some time ago (i used the small one on my equipment truck in the start of this thread) but where are they now, i cant find them anywhere anymore? :sad:
loooks like a cool truck.
You are not the only 1 who has to go to school and where the winter is comeing.
And here is Effermans map of the cranes http://www.brickshel...ry.cgi?f=477567

#105 matias bendtsen

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Posted 24 December 2012 - 12:14 PM

The two volvos are finished:
Posted Image
The truck is built, so the functions you control from the cab are on the remote. :classic:
so when the bed is going to tip, the gearbox (2 gears) must go in neutral, and the PTO, with a pump must be turned on. so the two xl motors drive the wheels and the pump, which supply the bed and the crane. :classic:
to see all functions chech the video:


the loader is also fully remote and contains 3 servos, a buggymotor, and an xl motor.
the buggy motor supplies airpressure and it turns off, when the pressure is high enough. :wink:
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it is quite hard to control because of the fast movements of the boom :hmpf_bad:.

more pictures here.
and a merry cristmas to all of you. :classic:
simply building...

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#106 Alasdair Ryan

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Posted 24 December 2012 - 01:07 PM

Very good Mr Bendsen I like the truck. :sweet:
Did you try to gear down the pneumatic valve's to give better control?
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Updated 10/03/15
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#107 matias bendtsen

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Posted 24 December 2012 - 01:09 PM

No, there is not enouch room in this since the body is quite narrow. :classic:
btw. anyone got ideas for my next MOC?
i thought about this:

Edited by matias bendtsen, 24 December 2012 - 01:11 PM.

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#108 Alasdair Ryan

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Posted 24 December 2012 - 01:19 PM

I think that will be quite a hard moc to build,you will need at lest two gearboxes. :classic:
Have a merry Christmas. :thumbup:
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Updated 10/03/15
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#109 matias bendtsen

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Posted 24 December 2012 - 02:10 PM

i know, it is a hell of a lot functions, maybe somting like 6 in the bottom, and 4 or 6 in the top, but it should  be possible. :sweet:
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#110 timslegos

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Posted 24 December 2012 - 07:29 PM

I built a walking excavator some time back, and that too had several functions below and on top of the turntable.  Fitting in all the pneumatics and motors was truly a challenge.  I hate to be a downer, but I dont think it will be possible to completely remote control, but good luck if you can!

tim

#111 Alasdair Ryan

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Posted 24 December 2012 - 07:31 PM

View Posttimslegos, on 24 December 2012 - 07:29 PM, said:

I built a walking excavator some time back, and that too had several functions below and on top of the turntable.  Fitting in all the pneumatics and motors was truly a challenge.  I hate to be a downer, but I dont think it will be possible to completely remote control, but good luck if you can!

tim

Yes it is,its possible to build a cordless walking excavator as well.

Edited by Alasdair Ryan, 24 December 2012 - 07:31 PM.

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Updated 10/03/15
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#112 KopMaister

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Posted 24 December 2012 - 09:13 PM

View Postmatias bendtsen, on 24 December 2012 - 12:14 PM, said:

The two volvos are finished:
Posted Image
The truck is built, so the functions you control from the cab are on the remote. :classic:
so when the bed is going to tip, the gearbox (2 gears) must go in neutral, and the PTO, with a pump must be turned on. so the two xl motors drive the wheels and the pump, which supply the bed and the crane. :classic:
to see all functions chech the video:


the loader is also fully remote and contains 3 servos, a buggymotor, and an xl motor.
the buggy motor supplies airpressure and it turns off, when the pressure is high enough. :wink:
Posted Image
it is quite hard to control because of the fast movements of the boom :hmpf_bad:.

more pictures here.
and a merry cristmas to all of you. :classic:

Finally someone took a shot at the Volvo BM LM series :P this is my favorite wheel loader in the whole volvo series...

and by the looks of it it's a bullseye!

great moc nice features... keep it up :P

#113 dhc6twinotter

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Posted 24 December 2012 - 11:41 PM

View Postmatias bendtsen, on 24 December 2012 - 01:09 PM, said:

No, there is not enouch room in this since the body is quite narrow. :classic:
btw. anyone got ideas for my next MOC?
i thought about this:

That's a lot of functions!  I count 7 functions on the base and 7 in the supertructure.  That would be a great project, but a challenge to fit all those functions.

Edited by dhc6twinotter, 24 December 2012 - 11:45 PM.


#114 matias bendtsen

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Posted 24 December 2012 - 11:48 PM

i can count 6 in the superstructure, and 6 in the undercarridge. (unless i want crab steering, then it is seven) :classic:
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#115 dhc6twinotter

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Posted 24 December 2012 - 11:57 PM

View Postmatias bendtsen, on 24 December 2012 - 11:48 PM, said:

i can count 6 in the superstructure, and 6 in the undercarridge. (unless i want crab steering, then it is seven) :classic:

Your're right, it looks like 6 in the superstructure.  I was counting the crab steering in the undercarriage, for a total of 7 in the base.   Definately a doable project though.

It's an interesting machine, and one that I've never seen before.

#116 matias bendtsen

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Posted 25 December 2012 - 08:24 PM

i have now disassmbled the volvo lm loader and started on the multijob. :sweet:
i need 12 functions all in all, so i think i will make 3 groups of recievers, with to recivers in each, like this:

group 1 (channel 1 and 2)
drive
all whell steer
compressor
superstructure slew

group 2 (channel 3 and 4)
telescopic boom up/down
boom in/out
bucket up/down
rear outriggers up/down

group 3 (channel 3 and 4)
digging boom up/down
turn boom
bucket tip
dipper in/out


so i have left out the joint in the middle of the boom (useless feature :laugh: )

but, how do i swhich between group 2 and 3?
i have tryed wit some swhices, but i cant make it work. :cry_sad:

Edited by matias bendtsen, 25 December 2012 - 08:25 PM.

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#117 dhc6twinotter

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Posted 25 December 2012 - 09:01 PM

If you are planning on using 1 motor per functioin, you could place PF switches between the reciever and motor.  It would be similar to a electronic "gearbox".  The downside is that you would need a lot of PF switches.  You would need a motor to move the position of all the switches.

If you are using pneumatics, you can build a sequence of pneumatic valves, similar to a pneumatic "gearbox".   You could have 1 motor dedicated to driving, 4 or 5 motors for the pneumatic funcitons, 1 or 2 motors for the non-pneumatic functions (boom slew, steering, and maybe extension), and 1 remaing motor to switch the pneumatic/mechanical gearbox position.

Not sure if that helps...I'm terrible at explaining stuff. :grin:

#118 matias bendtsen

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Posted 25 December 2012 - 09:49 PM

i want something that can turn off group 2, and then you turn on group 3, but the switches cant turn off a reciever. :hmpf_bad:  
i have also tried to do it with the old swiches, but they cant do it either...
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#119 Alasdair Ryan

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Posted 25 December 2012 - 11:14 PM

I cant quite understand what you mean,can you not just make a simple gearbox that will contain group 1 and 2 together?
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Updated 10/03/15
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#120 matias bendtsen

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Posted 26 December 2012 - 09:13 AM

i dont want to change between functions, i want to change between recievers, so i need something that can urn off a reciever without turning off the battery. :classic:

edit: i have been looking on Philos site (here)
the switch let the 0V and 9V pass through, and can turn off C1 and C2, so if it is possible to modify a switch to turn off 9V that would be great, but i have taken apart a switch, and it is a printplate that cant be modified. :hmpf_bad:

Edited by matias bendtsen, 26 December 2012 - 09:48 AM.

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#121 matias bendtsen

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Posted 26 December 2012 - 06:45 PM

idea to LEGO: 1L worm screw, i am so close to cut one in half right now, i cant find the room in my MOC. :hmpf_bad:
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#122 matias bendtsen

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Posted 27 December 2012 - 10:04 PM

this is coming along nicely, and no worm screws cut in half. :classic:
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almost all functions work as they should, now i just need to sqeese in one battery, 4 recievers, and to servos in the superstructure. :classic:
only one function so far is giving me problems: the Z-link for the front bucket, i cant get enoug movement on the shovel. :hmpf_bad:
here is the two extremes:
full tip not even close enough:
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full tip backwards is enough for me:
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help please to get it to tip more. :sweet:

the reciever problem maybe solved tommorow, my granddad can maybe modify a switch. :sweet:
simply building...

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#123 efferman

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Posted 27 December 2012 - 10:45 PM

cool method to mount the pneumatic cylinder.
in case of your Z kinematik: have you tried a 4x2 bent liftarm to make the lever stroke more short?

#124 matias bendtsen

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Posted 28 December 2012 - 09:06 AM

I will try that later, but i dont have the time today. (my brothers birthday)
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#125 matias bendtsen

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Posted 19 January 2013 - 10:11 AM

I got the z-link working and almost finished the  superstructure. (only need to do the wiring and make the cab) :classic:
but that is paused until my granddad is finished with an extension wire with swich, to turn off the recievers. :classic:

I also started on a unimog 6x6, but i dont have the set to work from, only the cab, so i need to know how many studs, there are from the ground to the PTO? :classic:
simply building...

if you stop getting better, you stop being good.




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