Revelation Robotics

[Jeff Gier]

I just saw the Justice vs Spinzilla video recently.  It kicked some bot!  How much did the blade end up weighing?

[RevRobots]

Thanks! The bar ended up being 3.70 oz.

Adam
Revelation Robotics

[RevRobots]

Hi All,

New Bot Alert: Bulwark!



Well that is the bottom of Bulwark. The top is all out operation Swiss cheese:



Also I couldn't help doing this, what movie did I get this v from?



And yes it uses the original milled chassis that I got for Justice.

Questions/Comments?

Adam
Revelation Robotics

[Lucas Grell]

Why aren't you going to run Justice any more?

[RevRobots]

Oh no, I built a different chassis for Justice 3 days before the event. It worked out pretty well.

Adam
Revelation Robotics

[Badnik96]

Back thing is from Toy Story 2

Looks great, as a pure brick it should hold up well. I'd consider running smaller wheels though. Right now you are going to lose to literally anything with a wedge.

[Lucas Grell]

Ah, I missed that part in the earlier post. Do you have pictures of the frame that was on Justice?

[RevRobots]

Hi All,

As you have probably heard or seen, Joe's robot Ophidian keeps having trouble keeping his bar on. He is using FingerTech blade hub. Do you guys have any suggestions on what to do?

Thanks in advance,

Adam
Revelation Robotics

[Coboxite]

Hi All,

As you have probably heard or seen, Joe's robot Ophidian keeps having trouble keeping his bar on. He is using FingerTech blade hub. Do you guys have any suggestions on what to do?

Thanks in advance,

Adam
Revelation Robotics

What part is failing: the lock nut, the set screw, or the shaft of the motor?

[Jeff Gier]

I've seen this on just about every Viper kit.  It's pretty awesome as long as there is lexan between you and the blade. 

First thing is to use Loctite and torque the bolts in hard.  I like red loctite, but that's often an unpopular opinion.  If this doesn't work, file a flat onto the shaft and put the set screw into it.  After that, you could try to re-drill and tap the hub for a larger set screw. 

Be safe in your testing!

[FingerTech]

I replied to Joe's email, but since others might be having the same trouble, here is what I replied!

The biggest factor is getting the Blade Hub to stay on the shaft is to make sure the setscrew tightens onto a flat spot.  The motors don't have one normally, but I have ground one into the shaft for you with the Spinner Add-On.  Maybe take a look at it and make sure it is a shape that the set screw can grip well.  You want it to be flat or even cup-shaped so that the setscrew would have to loosen out for it to be able to come off.  If it isn't, you can use a dremel with a cut-off disc to make it better.  (A metal file also works.)

Medium strength Loctite (blue) is usually enough to hold a setscrew in place, but it needs at least one day to properly cure.  If you put it on just before a fight, it won't do anything. 

Lastly, if the setscrew still won't stay in place you could try using a longer one, or if you can't find a longer one you can use two setscrews with one stacked on top of the other.  This gives more surface area for the Loctite to hold onto.

Hope that helps!

[Lucas Grell]

Two set screws stacked is usually better than a single longer one- they tend to kind of bite, and the one on the shaft can't really back out at all.

[mg4201]

make sure you are de greasing both parts of the fastener before applying loctite.  You can stake the screw with a sharp center punch. after that, is the motor shaft big enough to cut a key way in?. keyed motor shafts are very common in large electrical motor applications.

[RevRobots]

Hi Guys,

Thanks for all of the help with the viper kit.

Updates:

I upgraded Cornerstone with a 3S Lipo, and some horns. Cornerstone is VERY fast now.

Arrow is now in the hands of my brother. I turned him from a derpy pusher into a thwack bot.

I got some new, smaller wheels for Bulwark.

Since The Ophidian is not going to Barn Battles, I convinced Joe to let me try his chipper blade on Justice. But every time since then, the brushless hasn't worked.  then I took the bar off and it worked great. Do you guys know whats going on?

Pics of Cornerstone, and Arrow will be up shortly.

Adam
Revelation Robotics

[Lucas Grell]

Sounds like a loose connection. It should do SOMETHING, even if not well.