3-axes trim wheel / Do-it-yourself-style

[Flying H]

Can you please share prints and wireing layout of your work? It can be useful to me (and others) and tips on how to plug it in? It would be most appreciated as I can build but not draw and figure out the wireing!

[Kodoss]

A little update to the project.
What you see are the metall parts (aluminium, yeah) for the trimwheels.

trimmrad1.JPG

I also ordered the wooden rinds on the 19.Dec. but they didn't arrived till now.
Must be that X-mas and new year thingy.

Since I have a week of holidays now, I try to get further with it.
It all depends on when I get my wooden rings, that I can cut the big holes in the frontplate.

In the meantime I will do some drawings with open office for everyone who wants to build it.
If I have all the plans ready I will post them the same way.
Plans for front and back plate are already drawn.

PS: Sorry for my laggy updates.
PPS: I'm too slow at writing text. I always end up with: "Your session has ended. Please login again."

[Kodoss]

As promised, here are the plans.
The drawings are mostly in 1:2 (see right upper side).

trimwheel.zip

In this zipfile is a PDF (90KB).
Side 1-2 are the drawings of the parts.
Side 3 is positioning.
Side 4 is wiring.

The best is you begin with the backside and frontside.
Then bend the sideparts and adjust them to front and rear.
Bend the other 3 parts and you are mostly done with the housing.

The trickier parts are the trimwheels (in my buildup).
Other solutions might be considered, if it looks to difficult.

PS: by drawing the parts, I realised that I made the elevatorplate to high.
I will just bore the rivets out, cut a bit of and rivet it again.

[Kodoss]

Woahh, 2 months already gone... ok, a little update again.

Thinking about how to attach my wooden rings with my center disk put my a little bit in a problem. I would have had (is this even gramatically correct?! ) to mill the rings 2mm in the inside on 4 positions and to drill the 8 holes in 1 disk with its plates. The problem would have been: how to adjust all parts without a runout.

So I came up with another resolution. And it turns out to be even easier to realise.

I build 3 new center disks, this time a bit thicker, and bought 12 screws (M3x40mm).
In the disks I drilled 5 threads. 4 threads all 90° and 1 thread 45°.
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The 45° thread goes to the core bore and will be used for securing the disk to the poti.
The other 4 threads will hold and adjust the ring to the center through the screws.

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A little preview how it hopefully looks like. I still have to drill the holes for the ring. First with 3mm, then 5mm for the screwheads.
Also clear paint will be put onthe rings.

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[Kodoss]

Since I had free today, I just worked further on my Trimwheel.

The rings are drilled, and painted twice with clear varnish. In the meantime I drilled the holes in the front and backplate so that I can screw them together instead of riveting. Also I marked where I have to cut my 3 holes for the trimwheels.

After the rings have dryed I screwed everything together just to see that the aileron-trim-wheel is a little bit to deep and touches the rudder-trim-wheel. Also it touched the plate which holds the rudder-trim. So I had to do some adjustments.

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I will later detach the rudder-trim-wheel, lathe the disk a little bit again and mount it 180° turned. So that I can get rid of the 3 spacers.

Here's a pic of the backside of the backplate. As you can see the screws are sinked, so that it can be fitted on my 2 Saitek throttle quadrants. I also sinked the screws which are holding the rudder plate.

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And the last picture of the day. Trimwheels assembled in harmony...

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Ok, they have a swash of 1 or 2 mm and a runout of 1 mm. But I think it's ok for me.

Edit: It also helps to pass the time and calm the mind until the patch is ready. Some others should try it too, instead of ....
You know what I mean.

[von Brühl]

Crazy looking, but nice work! ~s!

[Kodoss]

Today I tried to finish the front plate.

I took my little helper (which you can see below of my trimwheel) and made 2 little cuts for each trimwheel. After that I used a saw to deepen it.
Then again with the dremel( ok, it not a real dremel ) cuting the strips out.
After 4 hours of work, it still needs some adjustments so that I can turn the wheels without touching the housing with the rings.

Also it was a good idea from me to screw the rudder-plate on the back-housing.
Because to fit everything together I had to screw it of first.
Putting all parts together ( wiring, switches, trimwheels, housing) will become the toughest thing...
I also attached the side parts for checking, but they aren't drilled now for final assembly. The hole for the USB-cable is also missing.

Enough of words! Pics, pics, pics!!!

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