Only a small update. Everything is coming together. In the last month I have finalized the design and made many modifications. I found and ordered standard parts required for the build, including sensors, dampers, springs, bearings ect...
I am also finished now with all the drawings, and got the workshop who will make the parts.

The main change on the pedal design was that I skip the gas spring as main tensioning element. It has too flat spring characteristic + they are not designed for a high frequency usage. Therefore I put a standard extension spring in, and an additional hidraulic damper cylinder.

I also decided to use a simple steel plate base. It is cheap and it will be very easy to mount into the floor of a cockpit stucture. Later I can attach any mounting fitting to it if necessary. So it is very flexible.

The machining and cutting of the parts will start in June. Hopefully I can assemble everything in July:)

Some pictures. Hopefully the very last rendered ones:)


pedal1



pedal2

The pedal castings require some polishing and filing. So I started it as well. On the left is the orginal, on the right is the "almost" finished:)


DSC_0182[1]

I finished today with the assembling of the rudder mech. It is awsome, I am really happy with it. I removed the two small linear dampers from the top, they were just too weak. I will add later a strong rotary damper instead. Changing the load character is also possible later with the CAM`s modification.

The pedal castings are not finished yet so they are cool decoration only on the pictures:)


DSC_0964 by csaba.moharos, on Flickr


DSC_0966 by csaba.moharos, on Flickr


DSC_0962 by csaba.moharos, on Flickr


DSC_0961 by csaba.moharos, on Flickr

cheers
MM

Can you provide measurements for those pedals? Just overall length, width and depth.
Thanks in advance.

Are you looking for the size of the toepedal castings or the overall dimensions of the construction?

Thanks for the reply.
Just the castings.

Height: 290mm
Width: 117mm
Depth: 120mm (including the bottom boot flange)

You sir, are a gentleman. Thankyou.

A very simple design. Outstanding work!

salute!

Not simple at all. But the quality of the engineering makes it look like it is.

How is the cam profile and spring working out?

Hi Brigstock,

it works very well. Nice linear feeling both ways with smooooth travel. A bit way too smooth actually, some friction would be nice. Probably I will do some experiment with additional hydraulic damping, and different CAM profiles.

What is in my way is the lack of the testbed to screw the pedals and the stick on. So no real testing were done so far. A simple testbed is under constraction and I move to a new house, where I will have the space for it:)

Some pictures

pedal-3 by csaba.moharos, on Flickr


pedal-6 by csaba.moharos, on Flickr