New Rig build 2DOF and TL

I must add that I am copying another members rig (Thirsty). I have been in touch with him and he has agreed to let me copy his design and document the progress here. I basically drew myself a rough sketch based on the pics of his build, scaling it up etc. Dimensions won't be identical to his but the overall appearance will resemble his rig for the most part. Thank you Thorsten

Hi guys,

some pics of the weekends progress. Steering mount, lower frame, wheels and pivot bearing for traction loss all done. Need to get seat next so that i can weld up the the seat base. Hoefully will find one this week. And also need to figure out how I'm going to mount the motors.

Ok, made a lot of progress this late this past week. Figured out how I'm going to mount the motors and made some brackets for them. Frame is all done now, got it primered and painted today. Will paint base/traction loss frame tomorrow as well as seat holder. When it all moves again its next stop will be in its final resting place, in my office. Then all the work can begin on assembling and the electronics. Also managed to pick up a pair of racing seats this weekend. Will keep the other one for the Mk2 build. Well anyway here are some pics of the progress up till now

Sitting here with a big smile on my face looking at your pics and watching that thing growing...a lot faster than mine actually. You've done a great job, mate.
So, now I know what to do if I ever decide to change to dc motors ;-)

Just to let you know in case you want to build the same flight stick bracket and use the TM HOTAS Warthog as well, I had to change my design because there wasn't enough clearance to insert it from the top. The steering wheel/bracket was in the way. So I got myself another of Holger's Q1R's for that.

Thanks Thirsty, all credit to you though, your design is great and well thought out. Moved the pieces into the office today and started assembly. Waiting on some M12 ball joints for the motor to seat rods then I can mount the hall pots. Hopefully I should have them this week. Attached some pics of todays progress

Hi guys, progress been a bit slow over the past couple of weeks but I'm finally done with the mechanical side of things. Since the last update Ive done the tread plate floor boards, mounted all motors with hall pots etc, made the pushrods for motors to shoulder mount, welded up a stand for the 3 monitors and made the moveable pedal tray from the slide rails that are not used from the seat.
I have 12v 200w motors driving the seat and a 24v 320w industrial motor for the traction loss. The 12v motors will each use JRK's and the 24v traction loss motor will use a Sabertooth 2x60 and either a Kangaroo or Arduino. I read somewhere that someone had issues trying to get hall pots and the Kangaroo to play nicely together and ended up using quadrature encoders with the kangaroo. I prefer the idea of a hall pot as I understand that when using an encoder the rig must first do a "HOMING SEQUENCE" to find where it is at switch on wheras with a pot it wuill already know where it is. I have put a rotary encoder on the traction loss motor gearbox input shaft as well as a hall pot on the output shaft so I have both options available. Will see how I get on using hall with the Kangaroo and if it doesnt work out I can either use the encoder or ditch the Kangaroo and use Sabertooth with an Arduino.
But plan for now is to just get the seat moving with the JRK's and worry about the traction loss after all that is working.
This is where I'm going to need some help. Ive installed Simools and that part seems ok. I have no problem with the wiring of the JRK's, pots, motors etc. What I need help with is the JRK settings in Pololu App. Pid etc. Does anyone know of a post with detaild step by step instructions to get the Jrk's setup and working with Simtools? Also what I'm not 100% sure about is the actual direction of movement of the seat. ie: In a left turn must the seat tilt left or right? When braking does the seat tilt forward or back? And the same for accelerating? Traction loss seems fairly logical, a breakaway to left would mean the rig moves left?
So close now, cant wait for motion.
Here are some more pics of progress up to this stage.

Thanks for the reply Noorbeast. The links you gave helped me and I got the JRK's set and have motion. Im having a problem with the Kangaroo for my traction loss motor. Surprisingly not the problem I was expecting though. I managed to complete an autotune (actually twice) and both times completed with no problems. And thats using 180deg hall pots. Using the Describe software I have full control of the motor. But cannot get any movement with Simtools. I change the baud rate of the Kangaroo to 115000 before exiting Describe and thought that may be the problem (I also changed to 115000 in Simtools) but even after changing everything back to 9600 still nothing. Its like Simtools is not communicating with the Kangaroo at all. Ive attached pics of interface settings in Simtools. Anything obvious wrong?

Thanks Noorbeast, changing to 3a did the trick, thank you. Now all axis are moving. Question i have is what are the correct seat movements vs the sliders. Ive had the roll and sway axis's move both ways and cant dexide which feels right. Traction loss is the only really obvios one to me. Also for surge, when acceleraring and braking, which way should the seat move?

Great, thank you Noorbeast. Got that sorted. I'm trying to do some tuning, especially with surge as per link you sent in your previous reply re fine tuning gear changes. But the link as well as other posts ive seen, talk about check boxes in the tuning centre which must be unchecked in order to enter values manually. I dont have those check boxes, only boxes which can be changed from green to blue to red. Not exactly sure what each color represents but ive tried changing values manually after changing to each of the colors and it doesnt work. Is this something to do with previos version of simtools vs version 2 or am i missing something?





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