First build log - Borderlands Pestilent Defiler *FINISHED*

[BRDencklau]

So what is that? A dual gearing that spins the mold on an axis while also toppling end over end.

That is a drive shaft through a mounted bearing connected to a drive wheel and a gear which is encased in another housing which subsequently doubles as the "drive force" gearbox. That "drive gear" will rotate the main box end for end but also turn two "sister" gears that power two opposing drive shafts connected to the opposite ends of the mold attachments through universal joints. Therefore magnifying the force applied by the motor and lowering the speed while upping the torque needed.

The problem I see with this train of thought so far is keeping the mold from spinning too fast so you can get an even coat...

 

[BRDencklau]

I just sketched this up to help illustrate (wink) my idea.



Sans armature and support structures.

 

[DtailedREPLICAS]

The start of your vacuformer looks great. The fact that you have your metal working skills behind you is handy. Im not yet confident enough at welding to trust Id get a good seal. Could always go over it with a sealer though i suppose.

Ive got plenty of ideas for the router table, Ive really just got to get around to doing it. Like yours it has to be removable because its part of my saw table and I regularily use the sled on it and the router head would get in the way. I plan on making it retractable, but at the same time i dont want it permanent as I use the router handheld as well. I plan on modifying the existing fence that I built to incorporate a dust extraction system as well as have the option for an extension to allow me to easily route lengths on their ends.
I basically want to pull as many ideas together as i can before i start to ensure it has maximum functionality.
Funnily enough, its the router I need free to route out for the plate on top of the table to allow me access to change bits and whatnot. Its funny how when youre making a jig, etc, for a particular tool, you often require the tool youre making it for to make it, and how already having the jig youre making would help you make that jig. Lifes cruel.

Your sketch looks on the right track (other than the top sister armature, which should be rotating clockwise, but i get the idea). As you said, speed is definitely an important factor. Itd almost be nice to have variable speed, but you could always just find a happy medium. The basic design ive seen and like uses two square frames within one another that rotate in opposite directions. Ive seen them using only one sister, but I guess youd get more torque for heavier moulds with two, and perhaps a smoother motion as well.
You'd need to go around the outside of the frame so you probably wouldnt end up using uni joints, but rather just gearing around the outside corner, or using a belt/chain to drive a straight shaft that interacts with the final two gears in your sketch. A chain on teeth would give you a more positive driving force i guess.

 

[BRDencklau]

Chain would definitely give you some much needed tolerance.

From what you describe, I think we are on the same page with the ideals of the spinner.

 

[DtailedREPLICAS]

Yeah, I agree, on both accounts. Youre obviously a little better equipt to build one however.

 

[BRDencklau]

Yep. That's why it will get made.

Great idea, by the way.

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[DtailedREPLICAS]

No worries. Im sure it'll make your life easier. If nothing else, itll be a fun new toy and give you an excuse to make some sweet casts with room in them for all sorts of goodies.

Itd be great to see a step by step if you decide to go ahead (and have the time to set aside documenting it)

 

[BRDencklau]

I always document and share. That's how we learn new things.

Like your internal sprue from the trigger to the guard. I wouldn't have thought of that right away.

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[DtailedREPLICAS]

This is all true. Thats the best part about this site and other like it, I guess.

Look forward to seeing your current projects finished and keeping up with your future ones.

 

[BRDencklau]

Likewise.

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[Megus23]

This guy did a pretty good instruct-able on a rotor mold setup; fairly simple too

Make A Rotational Casting Machine For Under $150

I just sketched this up to help illustrate (wink) my idea.

[url]http://i973.photobucket.com/albums/ae216/Brdencklau/20131116_204936_zps45ac3aa7.jpg[/URL]

Sans armature and support structures.

 

[BRDencklau]

Nice. I know (or used to know) one of the guys associated with instructables.

More or less the same idea, but I accounted for the mold to be quite heavy and illustrated (if you can call a 60 sec sketch an illustration) drive shafts instead of belt/chain and included axial drive force on both ends.

I will make my machine out of aluminum tubing, welded for strength. And motor driven... Yeah definitely motors.

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[Megus23]

Missed the motor in your sketch lol

Yeah yours sounds like it'll be solid in comparison to the wood framed one.

If you document the build at all I look forward to following it

Nice. I know (or used to know) one of the guys associated with instructables.

More or less the same idea, but I accounted for the mold to be quite heavy and illustrated (if you can call a 60 sec sketch an illustration) drive shafts instead of belt/chain and included axial drive force on both ends.

I will make my machine out of aluminum tubing, welded for strength. And motor driven... Yeah definitely motors.

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- - - Updated - - -

 

[BRDencklau]

Will do.

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[MisterLamont]

I'm amazed. Everything you do is beautiful. Truly stunning. So proud to see someone from Brisbane burning out awesome proppage!!!