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RC Helicopter flying, RC Cars and RC boating

Made for other people and me to track what I am doing when with my remote controlled units. It started out with helicopters. Hence the name.

If only one of my units is of interest, this unit can be clicked on the right and only posts regarding that unit shows up.

This blog is open for comments so feel free to leave a comment.

Trailing in Karlstrup lime pit with the UNIMOG

Tamiya CR-01 UNIMOG Posted on Jan 24, 2018 20:03:06

This Sunday I went trailing with some of locals in Karlstrup lime pit. Here is a video one of the others made know it is a long video. I hope you enjoyed it anyway smiley

UNIMOG door handles

Tamiya CR-01 UNIMOG Posted on Jan 09, 2018 21:10:03

Some time ago I did some 3D modeling in order to make some door handles for my UNIMOG as I think this is one of the shortcomings of this body.
I don’t have the skill to make the perfect 3D model so some post 3D printing work was needed on the handles themselves as have made them rectangular and they should be triangular. Search the net for pictures of UNIMOG door handles for reference. I can’t put them here because of copy rights.

receiving the 3D print I first had to cut the two handles apart so I
could work with them separately. Then I used a needle file to shape the
handles triangular instead of rectangular and to remove the remains of
the connecting block.

Then I painted the handles black using
Humbrol 33. When the black paint had set, I decided to test mount the
handles on my UNIMOG body. To do that I used a small (0,6mm) drill and a
pointed reamer. I started out drilling the rear hole. The handles are
marked on the UNIMOG body so positioning is quite easy. Then I used the
reamer to carefully expand the hole until the rear mounting pin would go
in. With the rear pin going into the mounting hole, I could pin point
the location of the front hole and repeated the process from the real
mounting hole.

With the handles test mounted I could see how much
of the handles should be green to match the body, so I used a small
brush to paint the green part of the handles. Later I removed the
handles and put on a second green coating (Humbrol 117).

Finally I put the handle back in place and secured them using Silicone.


Unfortunately I had mounted some wires for the lights exactly inside one of the door handle locations, so I had to cut the wires loose and now I have to repair the wires so I don’t get a short circut.
The 3D print I created can be bought from here:

Thanks for looking smiley

UNIMOG on trail drive

Tamiya CR-01 UNIMOG Posted on Oct 16, 2017 20:02:54

Yesterday I took the UNIMOG trailing with the local trail group. It was in one of the members garden and one of the guys made a nice video. Thanks:

The UNIMOG can be seen at 2.30. The UNIMOG performed flawlessly and was a pleasure to drive.


Snorkel for the UNIMOG

Tamiya CR-01 UNIMOG Posted on May 16, 2016 15:27:25

By lucky chance I found a snorkel for a TAMIYA U900 UNIMOG on ebay. I immediately purchased it as I have always wanted to have snorkel on my UNIMOG as the ones used in the Danish army had snorkels.

I was thinking I would never find a ready made snorkel, so I thought I would need to make one myself but what do you know? The next thing would be door handles smiley

I have cut mine a little shorter as I think it is too long and the pipe lengths aren’t exact as wanted them. Then I have fixed it at the top to resemble the original. I made this fix from a ø1mm brass rod where I cut a thread and then some M1 brass nuts and washers.

To fix it at the base I used the original fixing. Here I also cut the extending rod on the snorkel to length and then drilled a 1,6mm hole for the original screw.

Here are some pictures of the snorkel installed:

I still need to paint the fixing. I’ll do that when I have something else to paint in the right colour.

UNIMOG sound module video

Tamiya CR-01 UNIMOG Posted on Feb 24, 2016 20:46:11

Yesterday I put a video on youtube with a demonstration of the sound module in the UNIMOG.

Here it is: don’t think the microphone in my camera is THAT good so perhaps I should look for a better microphone for my camera?

Thanks for looking smiley

UNIMOG sound module

Tamiya CR-01 UNIMOG Posted on Feb 21, 2016 20:53:28

For some time I have wanted to add a sound module to my UNIMOG. From my Leopard tank I know how sound adds to an RC unit. After spending some time researching, I finally decided for a beier-electronic USM-RC-2. Link to beier-electronic.This was the only sound module I could find with UNIMOG U900 sounds available. Furthermore it has a build in amplifier so I wouldn’t need a separate amplifier.

For speaker I thought that the ones that were offered along with this unit were too big. Further I wanted a cabinet so I went on ebay to see what I could find. I found this music angel that is about 50mm x 50 mm x 50 mm. That wasn’t too big to go inside my UNIMOG. My intention always was to take the music angel apart and only use the speaker and the cabinet.

When I finally got my music angel and took it apart, I learned that the speaker didn’t meet the required specifications. My solution to this was to get another music angel and take that one apart as well just to use the speaker. Then I coupled the speakers in series and they were up to the required specifications. Getting another speaker also solved my problem of sealing the other end of the cabinet. So now I have two speakers in the same cabinet. The only problem with having two speakers in the same cabinet is that the speaker’s magnets are pushing apart. To keep both speakers in the cabinet I put a strip around the speakers and cabinet. That will also make it easy to take the speaker and cabinet apart if I need to do so.

In my view the USM-RC-2 is a very advanced piece of electronics with a lot of options and controls available. I am not really using much of what this unit can do. My Spektrum RX and TX are too limited to allow me to do much more with it. If I was to do more, I would transfer to my Futaba RX/TX. To program the USM-RC-2 a windows program is needed and I found the data cable very helpful when finding out why my sound unit didn’t do as I wanted it to.

As I mentioned before I am not really using all the things this unit can do. I am just using it for sound. I have set it up so the engine sound will depend on the throttle. Then I turn the sound on and off when I turn the lights on and off. So lights and sounds come on at the same time.

Here are some pictures of my modified UNIMOG’s interior:

I know pictures don’t say a lot about audio. So I intend to make a video that demonstrates the audio.

Thanks for looking. I hope you enjoyed smiley

Window vipers on the UNIMOG

Tamiya CR-01 UNIMOG Posted on Oct 03, 2015 13:59:43

After buying some different window vipers I finally found out which would work: RC4WD Mojave (Tree Z-B0025). Unfortunately only one of the vipers in the tree can be used, so two kits are needed. It is not a perfect fit right away.
The blades have to be shortened and I did some twisting of the viper arm. To do the twisting, I had to heat the plastic in the places I wanted to make a twist. Careful with the heat as it can easily be too much. To capture the looks of the Danish army UNIMOG I had to paint the viper arms. Here are some pictures:

Now I am still looking for a way to make door handles and a schnorkel

UNIMOG video

Tamiya CR-01 UNIMOG Posted on Jul 27, 2015 09:01:22

Finally I have some video of the UNIMOG. Here it is:
I hope you enjoyed smiley

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