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kerst
06-01-2012, 05:39 PM
I built this crane years ago and it took me a long time to finish and in a sense it was never finished. I painted it red, but I was never happy with the result and over the years I made lots of small repairs and alterations.
During the last day of the Cabin Fever Expo something broke and in order to repair it I needed to take the whole thing apart and then I decided to just do it and repaint it.
It took me about 6 weeks of cleaning, sanding and re-finishing and here is the result. i also added dome more details.
Before:
http://farm8.staticflickr.com/7240/7279398040_d19134e51a_b.jpg

And after:
http://farm8.staticflickr.com/7227/7316675272_90f24acb74_b.jpg
http://farm9.staticflickr.com/8009/7316674964_c8027c4729_b.jpg

Kerst

mack kid
06-01-2012, 05:47 PM
Very Nice. Did a nice job both times. Love to build one. Someday HaHa. is there a build thread?

bigford
06-01-2012, 08:32 PM
real nice work!!!
where in NY?

plow jockey
06-01-2012, 08:35 PM
That is a very impressive build and a great paint job.

kerst
06-01-2012, 08:39 PM
real nice work!!!
where in NY?
Thanks! Copake, Mid Hudson Valley

9W Monighan
06-01-2012, 09:19 PM
WOW what a change. I wasn't aware that you broke this at the show.
I think that's my morning tea on the table:p

kerst
06-01-2012, 09:40 PM
WOW what a change. I wasn't aware that you broke this at the show.


It was minor and happened just at the end of the show. A pin broke off in the gearbox for the boom extension, but luckily the boom was fully retracted and I happily pretended nothing was wrong.
The actual repair took only 15 minutes, but i had to take the whole thing apart first. It gave me the chance to fix some other small details, but i had to promise myself not to do anything major, because I am always tempted to rebuild the whole thing and that would take me years. I have considered rebuilding most parts of the upper including the boom!

Kerst

trilliwilli
06-03-2012, 01:19 PM
Hello Kerst,

The crane lookes very nice. I already saw a little movie of it when I was reading your buildreport from the Liebherr and watched some movies on Youtube. Do you have some more pictures of the crane, maybe when it was disassembled?

I am currently drawing a Liebherr LTM1160 first generation (scale 1:14,5) that I want to build. Still have some issues whith the outriggers. They have to lift a lot of weight, approximately 40 kg without counterweight, and hold even more when I am operating.

How did you make the outriggers, do they actually work and how much can they lift?

BTW I got the tip for your buildreport on the Liebherr from Eef, who is a collegae if mine.

dabears
06-03-2012, 10:33 PM
That crane is Bad A$$!!!! That must have taken a lot of calculating and trial and error building to get it right!!! Very cool and i love the new yellow paint!

kerst
06-04-2012, 08:46 PM
Thanks , everybody for the encouragement and the kind words!
I have no pictures of the building process, just a few detail pictures.
http://farm9.staticflickr.com/8154/7154456605_04acc26b98_c.jpg
http://farm8.staticflickr.com/7097/7339659270_2c1fbec96c_b.jpg

I will try to make some when I have a moment.

Kerst

kerst
06-05-2012, 01:16 PM
here are some pictures:

http://farm8.staticflickr.com/7222/7342051234_d11b2aa363_b.jpg
http://farm8.staticflickr.com/7227/7342053004_903f70eace_b.jpg
http://farm8.staticflickr.com/7093/7156852141_fa5b165263_b.jpg
http://farm8.staticflickr.com/7211/7342053900_9e967d896e_b.jpg
http://farm9.staticflickr.com/8012/7156851749_ef67f57d11_b.jpg
http://farm8.staticflickr.com/7101/7342054860_7fde9773f9_b.jpg
http://farm9.staticflickr.com/8021/7342055068_0a7d553291_b.jpg
http://farm8.staticflickr.com/7079/7342052510_b4d253824b_b.jpg
http://farm8.staticflickr.com/7085/7342051800_86cffd0c39_b.jpg
http://farm8.staticflickr.com/7071/7156852565_e49c4dee4b_b.jpg
http://farm8.staticflickr.com/7098/7342051598_4fa9a5412b_b.jpg
http://farm8.staticflickr.com/7245/7156852845_436b70c37b_b.jpg
http://farm8.staticflickr.com/7101/7342050694_6b0af4018d_b.jpg
Kerst

BRICKNICK
06-05-2012, 07:35 PM
Wow that thing is serious......great job on building a serious piece of machinery.

trilliwilli
06-06-2012, 05:43 PM
Hello Kerst,

Thanks for the nice pictures. They give a good impression of the crane. It's a nice piece of work.

crawler07
06-08-2012, 09:58 PM
wow that is just breath taking!!!!im in shock over the details and robust it looks...congrats on a job well done!

jffhrvstr
09-21-2012, 10:04 PM
That's an amazing build! I'm impressed with the detail, it's a work of art! I also like the yellow paint job, it looks great!

Bigrigger
09-22-2012, 04:23 PM
It looked incredible before, now it is just stunning! That is a one-of-a-kind crane! The yellow and black paint job is very classy, and makes it look ready to go to work! :D
What's next?

kerst
02-16-2017, 03:02 PM
Since I started experimenting with RC control for my truck I got the idea to do the same for the Krupp crane.
There is no space on the crane itself for the batteries and receiver, etc. I decided to build a counterweight trailer with a hidden space for the battery, speed control and receiver and of course for the counterweights.
I already had most parts and it is going pretty quick.
Here are some pictures of progress so far:
https://c1.staticflickr.com/3/2493/32123843933_cee022f587_b.jpg
https://c1.staticflickr.com/3/2591/32938624745_b6672d3f8e_b.jpg

Kerst

Hofabooz
02-16-2017, 06:53 PM
Hi Kerst

Looking good should be interesting.
looking forward to the finished result if your crane is anything to go by it will all look great.:)

kerst
02-18-2017, 10:51 AM
Another step closer.
This is the idea:
https://c1.staticflickr.com/1/615/32127059074_2df2a4528f_b.jpg

kerst

frizzen
02-18-2017, 01:44 PM
Very cool!!!

Are you going to rc all the functions, or just do like drive/steer and still have to hook up a breakout cable to deploy the rest?

kerst
02-18-2017, 04:39 PM
Very cool!!!

Are you going to rc all the functions, or just do like drive/steer and still have to hook up a breakout cable to deploy the rest?

Thanks!
It will be only for the driving functions. I just tried it out and it worked beautifully.

Kerst

kerst
02-26-2017, 07:43 AM
The counterweight trailer is more or less finished. It includes the RC equipment and battery.
https://c2.staticflickr.com/4/3873/32988418271_1742318fd0_b.jpg
https://c1.staticflickr.com/3/2919/32988417901_335736d6b0_b.jpg
https://c1.staticflickr.com/3/2850/32988417241_f3394718fc_b.jpg


Here are 2 videos of the first test drive:
https://youtu.be/jc9PJV-BBgQ
https://youtu.be/aza5BS8ruVg

Kerst

kerst
02-26-2017, 07:58 PM
Another video, this time with more space available and driving at full speed.

https://youtu.be/n_fAej0tEjc

Kerst

frizzen
02-26-2017, 10:13 PM
That's really awesome!

kerst
09-02-2021, 06:49 AM
After 4 years I decided to upgrade the RC controls. I learned a lot while building the Euclid and i am confident to make all carrier functions RC controllable. The Krupp has a powershift gearbox with 3 speeds and an auxiliary box with 2 speeds. The transfer box has a differential which can be blocked. That takes 5 channels. It will be fun to be able to control all these functions remotely.

So far:

https://live.staticflickr.com/65535/51409937611_d2a1783afb_b.jpg

https://live.staticflickr.com/65535/51410204133_aae7910114_b.jpg

Kerst

Bo Wallen
09-02-2021, 05:54 PM
Very tidy and orderly installation. :cool:

kerst
09-03-2021, 06:39 AM
All the gear has found a place and now I need to "cover it all up" The first test run was satisfactory.

https://live.staticflickr.com/65535/51421913454_dfeb1db945_b.jpg

Kerst

jerry56
09-03-2021, 09:53 AM
That is some great engineering I like these crane builds...can't wait to see it together.

kerst
11-07-2021, 07:10 PM
The rebuilding is complete!
After I rearranged the carrier and made all functions (except for the outriggers) RC controllable, I started work on the upper.
I was never happy with the upper and I decided to take all the motors out and replace them with new ones. I also changed the telescoping mechanism and installed the motor and spindle in the boom. That is a great improvement. The hoist also uses a spindle, but a better one than the old one. The counterweight has a motor inside and this way it can attach itself to the upper. All together there are 6 functions. Since I have only 4 feeds I had to add 2 switches on the upper.
With all these changes I gained a lot of space and there was ample space for a battery for the carrier. It connects with a plugin cable.
With all this rebuilding I tried not change the parts that worked well. I am pretty happy with the result, although some painting is needed,

The motor compartment of the truck:
https://live.staticflickr.com/65535/51662482076_7d93ce78e2_b.jpg

The new swing motor and the 2 motors for the winches.
https://live.staticflickr.com/65535/51661672962_96b435f68b_b.jpg

The boom hoist
https://live.staticflickr.com/65535/51663161999_2fb2ea37e6_b.jpg

Here a comparison of the old and the new.
https://live.staticflickr.com/65535/51474743146_8a81babe35_b.jpg

The other side. Lots of electric connectors. The battery is connected via this little storage box next to the hoist cylinder.
https://live.staticflickr.com/65535/51662482351_5e2a886fcd_b.jpg

Kerst

kerst
11-08-2021, 01:25 PM
For the outriggers I have a solution. I can use the outlet for the counterweight for a small geared motor to activate the outriggers.

https://live.staticflickr.com/65535/51663819967_813b8b01ee_b.jpg

This is the console for the driving functions. The left lever is for the powershift main gearbox, the right one for the acceleration and steering and the top right toggles control the transfer box low-neutral-high and the diff lock in the transfer box.

https://live.staticflickr.com/65535/51663820042_bc05bd6367_b.jpg

Here some more pictures:

https://live.staticflickr.com/65535/51664624491_e3d21b976c_b.jpg

https://live.staticflickr.com/65535/51664624521_13680fd057_b.jpg

https://live.staticflickr.com/65535/51665305654_2e44610dd5_b.jpg

https://live.staticflickr.com/65535/51664624566_ece018fd91_b.jpg

Kerst

jerry56
11-08-2021, 04:07 PM
That crane is a true work of art, nicely done...