1.5b AVR and V1.2b H-bridge question

So I made my AVR off of the 1.5b setup on here and I'm just about to start assembling the H-bridge but I was wondering 7408 chips on the 1.5b AVR are the same as what is built on to the V1.2b H-bridge and if I connect the molex connector together. will I have some issues with the two 7408's? I see that 1.5 doesn't have the 7408's installed on the board. What would be the best way to by-pass one of them if that is the case? I would prefer to by-pass the one on the h-bridge if that is what is needed.. Thanks in advanced
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I think the boards have been designed for future expansion or flexible configuration when connecting to other motor controllers. For a 2 motor setup , the easiest thing to do would be to use the 7408 circuit on the H Bridge.
If you look closely at the 1.5b board you will notice that the two 7408 ciruits are separate entities; to be used if you want to drive something else.
I am in the building stage also. So maybe someone else could jump in here with some advice?
Hope this helps.

After looking closer I didn't realize that the 7408's on the 1.5b were not connected to anything by default. That is a good start. I see I could just by-pass the 7408 output on the H-bridge card.
Also yobuddy, not sure if you saw my other post about the output numbers on the lcd screen. I am using a 300 degree pot for the pot #1 and the numbers always bounce everywhere when I am not moving my pot. I'm assuming that is because the lack of accuracy? Will that affect anything when I connect the motors? Also they never hit 0 when the pot is turned all the way down.
Thanks again

Awesome PDF!
Thanks looks like a few others needed it or at least wanted to look at your expert work!
I am using 100k pots, I just hooked up the other pot this time and I will go to zero some time if i race them to the zero side they give me random numbers other than zero. Also they still do not stay still on a number in the middle. All i see it the hundreds number and the tens and ones just bounce around like crazy. I will try to take a video and upload it. I tried last time and it didn't like .mp4 on here. Have to see what is acceptable on here.
Thanks again for your help. I will need more soon I'm sure. I tried messing with x-sim software.. Oh boy that is going to be a choir. I also need to start working on building the actual sim. I want to do wiper motors for the cost effectiveness and I am planning to build it out of 1 round metal piping, have access to a small sum of it for free and cheap for new if needed. I just have to figure out what style of sim i want. I like the joyrider but that looks like a lot of metal and i wonder if that will start becoming too heavy for wiper motors. Any input from a seasoned simmer?

Hello, I would not call myself a seasoned sim builder. Maybe a bit of pepper builder.
Wiper motors will move a joyrider, even a metal built sim. Its all based on balance of the sim, be it joyrider, arse mover , frex - wheel , pedals moving with seat.
http://www.youtube.com/watch?v=fKAcXtnxHXU this was my first build and not that properly balance on the seat frame, but it worked.
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Ok here is the link for my video so you can see what the output on the lcd screen is with one pot hooked up..
http://www.youtube.com/watch?v=H9lSZUFmkt8
and here is the same thing with two pots hooked up. You will see the numbers always fluctuate. Just want to make sure it is normal on the AVR board. Also I don't have the right MOSFETS yet for the H-bridge. I didn't see the logic requirement until well after I ordered the wrong ones. So actual motor testing will have to wait. Plus you are assuming I have motors!! LOL I do not have those yet either. I'm just trying to take one thing at a time, get it working, save up some cash, then move on to the next part. I have to start hurryin' now though. Second child is coming at the end of May and my sim building time will become even slimmer than it is now..
http://www.youtube.com/watch?v=H9lSZUFmkt8

bsft-- I liked your first build. Thanks for the video. It looks like the degree of movement maybe limited, but I like the low profile of it. I would like to have a fairly large degree of movement on mine, because I would like to use it as a flight simulator so I can start learning how to fly small aircraft. I would like to fly real planes but again.. Baby number two is almost here.. Might be awhile before real flight school starts. So for now simming here I come.. X-planes, fsx, and rfactor... Now just have to save up for the controllers. Have a intec steering wheel and pedals that I converted to usb from xbox that will be my test dummy...

One last question bsft. How did you come up with your dimensions for your first sim? Did you get the joyrider prints and make your own adjustments?

Cheers thanks for the help