Hi DavidThe concept works ,as tested with leds ,however you rightFSled card works on a matrix system so it is never constantly alight ,So i cant have the relays contacts constanly closed or released at least with circuit published in this tread-they are vibratingMay be i should try to modyfy itFor shure thats has to work with Fsbus DO card Could be build even simplified version on vero board as i dont need all ammout of outputs available thereAlsow i would like to build a pair of stepper modules for thottlesbut dont have an expierience to etch pcbs-- hopefully will have find somebody to make that for me--- any ideas?So here we are for nowRegards

Yoss, I make all my own pcb's using the toner transfer method. I use the backing paper from pages of labels (it's waxed so the labels don't stick to them).I knew nothing about making pcb's or electronics for that matter until I started reading this forum and Dirk's site.Now I think I could make anything except I have not tried a double sided board yet.Do you feel that the circuit Maurice designed earlier in this thread can be incorperated in FSBus through the FSBus DO card (can't get the relays here in Australia though) or if I use the DO card or even the NG version that I would not need Maurice's circuit?ThanksDavid

I'll re-attach my original design as it has been deleted already.

>I'll re-attach my original design as it has been deleted>already.One thing that is looking obvious is that the centering force with this cannot really be very strong, because the arm of the yoke is so much longer compared to the bungee arm trying to center it.If you want more force, one thing is to do like Philip did on his Fokker sim and build a centering mechanism in front of the yoke assembly (if you have the space) and connect it higher on the pole, (behind the pipe so you won't be able to see it anyway) thus you can get more leverage on the arm.The centering force trick is quite similar to what I did on my control stick and works, the motor just makes a lot of noise on mine :) I used an electric drill/screwdriver and a threaded rod connected to a kitchen drawer rail to stretch the bungee.//Tuomas

I have created resistance by using an old steering damper from my Ducati. But you are right, because this is a motion platform, the weight of the yoke causes it to sort of flop around when pitching up or down. I will work around it, I just need to have a clear picture on how to interface it.David

Hi again David//Do you feel that the circuit Maurice designed earlier in this thread can be incorperated in FSBus through the FSBus DO card (can't get the relays here in Australia though) or if I use the DO card or even the NG version that I would not need Maurice's circuit?//Yea i think , basicly the circuit is usable with FS DO , and the transistors could be eliminated as there are read relays incorporatedistead themAlsow hard to believe that in Australia relays are not avalableThat very basic components ,could be finded even in third world countries so just visit some local suplyerIf you missed ,some discusion on this forum may be intresting for youhttp://forums.avsim.net/dcboard.php?az=sho...12495&mode=fullAnd tnx for the tip about paper you using for pcb Its about time to try etch them by myself as hard to find somebodyto order them from ,in such small quantitiesRegards

Maybe I said that wrong. We have relays, just not the ones specified in the paperwork for FSBus DO.DavidPS In Australia, we are known to be a little backward and we usually get anything that's new in the rest of the world about 10 years later.

Got you .David Any 5-6 V low current relay will do the job--just will not fit the holes of pcb and will have to be mounted externalyPurchasse one or two such ,as an example, and test

I will do that. Thanks Yoss.David