Topknot's Gauntlet. Just Posted Many New Pics Of The Finished Piece To Finish Up This Thread. 06/02/

[AlphaTech686]

Pitoon, I haven't weighed it yet but it's a lot liter than the 4 bladed monster I built last. There is a video here somewhere of that one.
I'm planning on a couple of 9 volts, nothing fancy.

 

[AlphaTech686]

So, I did some designing this morning. This is the drawing of the front sprocket hold/blade stop/limit switch plate.

Cut and folded for fit.

Transposed to the sheet metal and cut out then bent and gussets welded.

You can see I did some additional trimming of the final piece. Trying to save on weight as much as possible.

This is the axle for the sprocket. Drilling that hole dead center took a little practice.

That is exactly 7 1/4 inches of blade movement. I feel like that is pretty good for such a short total body length.

 

[wonko]

Wow jeff, you really have a way of making technical things seem so easy!  It looks cool, but honestly I really don't know what I'm looking at (not your pics, my lack of understanding lol).  Good call on staying away from LiPo's, they're awesome for allot of things, but can be dangerous in certain instances.  I've been using them in my R/C planes and heli's for 7 years, and have seen my share of them over heating and exploding (not just a puff of smoke, a true to life bang).  Also, they take a very specialized charger than can cost upwards of $150.00 + for a reliable one that won't kill your batteries.  Just for kicks I measured 7 1/4"... that's allot of movement.  This is gonna be awesome when it's done.  Thanks for the frequent updates!

Brian

 

[AlphaTech686]

Hey Brian here's a short vid on the movement. The blade plate is attached to the chain. The movement is not as
smooth as it will be as I don't have all the ball bearings in the track so it is quicker to take apart and put back
together during this fabrication process. 
http://s3.photobucket.com/albums/y99/alphapredator686/?action=view&current=017_zpsbda2f0ee.mp4

 

[UnitedHerps]

cool clip.  when do you think you'll be able to attach the batteries.  also what's your plan for switches?  forward and reverse?

Pitoon

 

[Untamed]

Great Job Jeff!
I know you don't need it but in the interest of saving weight could you go down to auto zone and get a belt and turn that motor into a belt drive instead of chain drive? It wouldnt be hard to modify the drive to make it belt capable. Nice job! Keep it up!

Untamed / Trevor

 

[AlphaTech686]

Hey Trevor the chain is nylon and hardly weighs anything. Here is a video I just did with two 9 volts to 
the motor. Tell me what you all think.
http://s3.photobucket.com/albums/y99/alphapredator686/?action=view&current=001_zpsc58142d2.mp4

 

[wonko]

Crazy Jeff.  I certainly wasn't expecting the speed.  I'm amazed at how you come up with this stuff.  That thing looks like it has plenty of torque too.  Keep them updates coming!

Brian

 

[BonzRus]

Outstanding Jeff...it has taken me a minute to follow what you are doing but I understand from the photos and the vid as well as your explanation. Thanks for sharing all your mechanical aptitude with those of us....ahem...more challenged individuals like myself.   I really enjoy seeing how you build things like this. It is giving me all kinds of juicey ideas...

Steve

 

[UnitedHerps]

Hey Trevor the chain is nylon and hardly weighs anything. Here is a video I just did with two 9 volts to 
the motor. Tell me what you all think.
http://s3.photobucket.com/albums/y99/alphapredator686/?action=view&current=001_zpsc58142d2.mp4

good stuff there!  how do you plan to attack the switches for forward and reverse?

Pitoon

 

[AlphaTech686]

Thanks guys, glad everyone likes it. 

Pitoon, I will be using a simple 6 prong (double pole double throw) toggle. 

My Motors just came to the door for the spear so I'm hoping I will have some updates on that soon also.

 

[AlphaTech686]

Here are the front and back limit switches and a video with the blades on. I will be wiring this tomorrow hopefully.

This switch holder actually became a gusset plate also as I had a little to much spring in the motor mount. 

Front limit switch mount welded into place. I am improving on my spot welding. As you can see I decided to put a coat
of paint on the metal stuff to help with future rust issue. Might have been a little overboard.

A few photos of the finished mechanism minus the wiring harness. That is 7 and 1/8 inches of movement.

Finished up the wrist latch today also. That bar that turns up on each end is to attach the body onto
when I get that done. 

And here is the video with the blades on.
http://s3.photobucket.com/albums/y99/alphapredator686/?action=view&current=018_zps2abf99cc.mp4 

 

[ThePriest]

I have to know how do you come up with all this stuff ? it is just ..... i can't put it into words i am trying believe your not just simply amazing it will look just bad ass when this is done .

 

[dennybobbutt82]

Fantastic i agree with priest truly awesome

 

[BonzRus]

Jeff, this is coming along really well and it works great! Just fabulous work my friend. You are simply amazing!

Steve

 

[made007]

The bottom is polyester resin? With fiberglass cloth? I ask because of the color, it looks like the same resin i use for cars, is it easy to demold?

 

[AlphaTech686]

Hey Made it is the same stuff you use on cars. I get it at Walmart in the automotive section. It demolds better than porable resin.

 

[made007]

Hahaha for real? I have gallons of that stuff

 

[Eaglewood]

Jeff,
you are a freaking technological and mechanical GOD-- My mind just does not work that way--  I need to sit down with you soon-- how far are you from FT Worth??  Ill be there soon.

 

[Lowdmekon]

We need some updates buddy????