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Thread: Semi BTA on a TLT axle

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Old 08-29-2009, 04:44 AM   #1
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Default Semi BTA on a TLT axle

Hey,

Had a steering session last night and made a HD servo horn support because I keep breaking them on a weekly basis. Then I started thinking about BTA steering and wether its possible to move the drag link behind the axle but keep the servo where it is. I was going to purchase some Eggressor knuckles but I didnt think I needed to spend 40 euros when I could make a plate for nowt. The plate is shaped like a boomerang and sits on top of the knuckle with a clearence hole over the thread of the kingpin in the knuckle (hard to explain). It frees up quite a bit of space in front of tha axle not having the drag link there. Anyway on to some pics.

Before


After


Underneath with the boomerang plate


The HD Horn (bad out of focus pic)


Thanks for looking
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Old 08-29-2009, 06:27 AM   #2
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Nice going

So how is the additional arm attached to the knuckle?
I see it travels all the way through to the opposite side and the bolt for the cross link, but where else?
Post a pic of the knuckle assembly next time you have it apart.

Does the horn reinforcement push the horn outward? ie - does the horn knurling still engage the servo enough with that thick of spacer?

I still run TLTs, but have not done this. I have a skid running under the front axle and up around the back of it. A saddle back sits right behind the axle to help the COG.
It's a BMV torsion rig, so COG is terrible. Next rig needs to be BTA.

Keep posting how it runs!
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Old 08-29-2009, 07:43 AM   #3
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Quote:
Originally Posted by sweli View Post
Nice going

So how is the additional arm attached to the knuckle?
I see it travels all the way through to the opposite side and the bolt for the cross link, but where else?
Post a pic of the knuckle assembly next time you have it apart.

Does the horn reinforcement push the horn outward? ie - does the horn knurling still engage the servo enough with that thick of spacer?

I still run TLTs, but have not done this. I have a skid running under the front axle and up around the back of it. A saddle back sits right behind the axle to help the COG.
It's a BMV torsion rig, so COG is terrible. Next rig needs to be BTA.

Keep posting how it runs!
The arm is screwed in to the original knuckle arm, there is hole in the plate to slip over the kingpin part of the knuckle and that is all that holds it on. Then on the other end, the link from the servo is screwed in.

I will grab some pics asap.

The horn reinforcing still allows full purchase on the splines.

Matt
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Old 08-31-2009, 05:25 AM   #4
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More pics.

The draglink just clears the shock bottoms.






Thanks
Matt
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Old 08-31-2009, 07:47 AM   #5
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Matt, that was some great engineering! Nice way to incorporate the existing holes and kingpin!
Like the servo bash plate too!
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Old 08-31-2009, 09:15 AM   #6
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**** yeah! its so nice to see people making their own parts still. i really like the dual arm BTA setup. i might try something like that on my TLT tuber.
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Old 09-01-2009, 03:35 AM   #7
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Quote:
Originally Posted by sweli View Post
Matt, that was some great engineering! Nice way to incorporate the existing holes and kingpin!
Like the servo bash plate too!
Thanks man.

Quote:
Originally Posted by dieselfuel View Post
**** yeah! its so nice to see people making their own parts still. i really like the dual arm BTA setup. i might try something like that on my TLT tuber.
I cant afford any of these new axles and trick bits so I have to come up with it myself. The TLT's are so versatile its wrong!
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Old 09-28-2009, 09:52 PM   #8
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Default bta steering

Nice engineering,
I too made my own bta when I had my tlt. I made a servo/battery plate and moved my servo over to the left side, which left room for a battery on the right. Got the job done! Satisfying, making your own parts, then seeing them in action
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Old 11-03-2009, 05:43 PM   #9
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Love that steering linkage setup...gives me ideas on how to hide the servo for my scale crawler. Thanks!
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Old 11-13-2009, 04:43 PM   #10
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I was thinking of this, but couldn't figure out how...now I realize...have to get new aluminum parts....

very cool design.
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Old 11-13-2009, 11:29 PM   #11
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Looking sweet Matt
Where did you get the servo protector from ?
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