Bendtsen's brick's

[matias bendtsen]

Time for another truck.

this time a volvo f88:

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

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.

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?

[Meatman]

Very Nice models!

[Alasdair Ryan]

Nice truck,I look forward to the truck with the cane on it.

[olaf9198]

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

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?

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.brickshelf.com/cgi-bin/gallery.cgi?f=477567

[matias bendtsen]

The two volvos are finished:

The truck is built, so the functions you control from the cab are on the remote.

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.

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.

it is quite hard to control because of the fast movements of the boom .

more pictures here.

and a merry cristmas to all of you.

[Alasdair Ryan]

Very good Mr Bendsen I like the truck.

Did you try to gear down the pneumatic valve's to give better control?

[matias bendtsen]

No, there is not enouch room in this since the body is quite narrow.

btw. anyone got ideas for my next MOC?

i thought about this:

Edited December 24, 2012 by matias bendtsen

[Alasdair Ryan]

I think that will be quite a hard moc to build,you will need at lest two gearboxes.

Have a merry Christmas.

[matias bendtsen]

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.

[timslegos]

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

[Alasdair Ryan]

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 December 24, 2012 by Alasdair Ryan

[KopMaister]

The two volvos are finished:

The truck is built, so the functions you control from the cab are on the remote.

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.

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.

it is quite hard to control because of the fast movements of the boom .

more pictures here.

and a merry cristmas to all of you.

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

[dhc6twinotter]

No, there is not enouch room in this since the body is quite narrow.

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 December 24, 2012 by dhc6twinotter

[matias bendtsen]

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

[dhc6twinotter]

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

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.

[matias bendtsen]

i have now disassmbled the volvo lm loader and started on the multijob.

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 )

but, how do i swhich between group 2 and 3?

i have tryed wit some swhices, but i cant make it work.

Edited December 25, 2012 by matias bendtsen

[dhc6twinotter]

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.

[matias bendtsen]

i want something that can turn off group 2, and then you turn on group 3, but the switches cant turn off a reciever.

i have also tried to do it with the old swiches, but they cant do it either...

[Alasdair Ryan]

I cant quite understand what you mean,can you not just make a simple gearbox that will contain group 1 and 2 together?

[matias bendtsen]

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.

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.

Edited December 26, 2012 by matias bendtsen

[matias bendtsen]

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.

[matias bendtsen]

this is coming along nicely, and no worm screws cut in half.

almost all functions work as they should, now i just need to sqeese in one battery, 4 recievers, and to servos in the superstructure.

only one function so far is giving me problems: the Z-link for the front bucket, i cant get enoug movement on the shovel.

here is the two extremes:

full tip not even close enough:

full tip backwards is enough for me:

help please to get it to tip more.

the reciever problem maybe solved tommorow, my granddad can maybe modify a switch.

[efferman]

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?

[matias bendtsen]

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

[matias bendtsen]

I got the z-link working and almost finished the superstructure. (only need to do the wiring and make the cab)

but that is paused until my granddad is finished with an extension wire with swich, to turn off the recievers.

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?