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Author Topic: Tesla Stove  (Read 6360 times)

Offline sourcecharge

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Tesla Stove
« on: August 29, 2017, 08:33:11 AM »
So here is my first design of the Tesla Stove

The five gears on either side are called the rotational gears and the inner beveled gears that are at 90 degrees from the rotational gears are the load gears....
On one side, the center rotational gear is connected to a motor, while the center rotational gear on the other side is stationary, connected to a frame that is held by the motor...this first design heated up the PLA too much and melted the I made a new design..
The picture does not show the load carriers that should be in the space between the frame in the middle and rotate along the axis of the load gears..
I use tungsten pinewood derby slugs as the weights in the load carriers....

My 3d printer broke and I am waiting for a replacement to finish the new design using bearings and threaded rods.
« Last Edit: September 01, 2017, 03:15:25 PM by sourcecharge »

Offline sourcecharge

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Re: Tesla Stove
« Reply #1 on: September 01, 2017, 08:49:28 PM »
This is the new design
It uses Threaded rods, and bike chain cogs with a bike chain to couple the rotational gears..
This design is much larger, and does not need a outer frame to hold the stationary gear...
The center threaded rod is coupled with the axle of the motor, and it turns the rotational gear on the opposite side....the stationary gear is held by the motor frame with a coupler that is riding on the center rod...
This design should allow higher rpm and greater amount of mass...
Some interesting videos that could be useful for future investigation...
Centrifugal Solid Mass Propulsion
Mercury rotational vortex

Offline sourcecharge

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Re: Tesla Stove
« Reply #2 on: September 03, 2017, 07:33:07 AM »
Got my new 3d printer.
Printing resumed....
I've got about another week of printing...( I think)
If you are interested in 3d printers, I am using the Monoprice Maker Ultimate.
here is the website:
    Ultra high 20 micron layer resolution
    Can print from USB connection or SD™ card
    Up to 300 mm/sec print speed
    Extruder nozzle temperatures from 180 ~ 260°C
    Build plate temperatures from 50~ 100°C
    200 x 200 x 175 mm build volume
    Compatible with Windows®, Mac® OS X®, and Ubuntu Linux
700 bucks now

I got mine on sale for like 550..
After about 6 months the mother board failed and I got a new 3d printer replacement after sending the old one back, no charge at all.
There are plenty of parts available but this printer is a clone of a clone of one of the best 3d printers available, the Ultimaker.
The duplicator 6 is the clone that the maker ultimate is cloned after, it even uses parts that are labeled as such..
The only differences between this and a compliment version of the Ultimaker (Ultimaker 2) is that it doesn't come with the incloser, which you can buy separately, the build volume of the U2 is slightly larger, and that the maker ultimate has a direct drive extruder, which allows the use of flex filament which when used, makes rubber like objects...but this drive is slower than the other type but I would rather have the ability than the speed....besides the websites say they both can print at the same speed...
It takes time and knowledge to set this printer up, so if you are determined to get the best printer for the price, with the required research, you can have a 2000 dollar printer for only 700 or if you wait for the holidays you might find it on sale like I did...
If you are a newbie to 3d printing, and have this specific 3d printer, I can give you my advice...

hope that helps

Offline sourcecharge

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Re: Tesla Stove
« Reply #3 on: September 15, 2017, 08:31:11 PM »
Hi all,

So, I got my new printer last week and finished all the parts but after putting it together I found that the cross bar was not adjusted correctly for the bike chain, so now I'm reprinting it and waiting for more filament...

This design will allow even more load weight than I thought and it even allows > just 4 the box type of bearing holder can be made as a pie shape and instead of 4 sides, it could be 5,6,7....and so on if it designed correctly...although a long bike chain maybe required thats not on the market....

I'll post some pictures of it once its done, and start testing ASAP...

On a side note, I hope this thing doesn't break at high rpm, as it is plastic, I'm starting to worry that it might fly off and hit the wall or if you are going to print this, use a high fill percentage, like 100% on at least the cross bar....

Offline sourcecharge

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Re: Tesla Stove
« Reply #4 on: September 20, 2017, 02:43:23 AM »
Hi all,
This is my completed version of the Tesla stove from the above design...
I've already tested it, and so far, I am unable to determine if it is not producing any type of vectored force....
I do observe a unstable weight measurement on a luggage hanging weighing meter...
Total weight = 14.4 lbs
Load weight - 2 ounces per load, 8 ounces total
The open design of this allows about 1 more inch in load length, and there is plenty of room for heavier more concentrated at the tip type load...
Sorry no vids, but if I have something to report as a positive result, I will make it public...

Offline sourcecharge

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Re: Tesla Stove
« Reply #5 on: September 20, 2017, 11:08:29 PM »
So, I've decided that a hanging weighing scale is not going to give me a valid positive or negative result.

I've instead started to design a vertical pendulum test and all I have to do use print out 4 more bearing holding blocks...

The blocks will hold the upper part with a cross bar threaded rod on bearings...

Then the bar will extend out to 2 more block where they will hold up the bar..

They will be supported by 2 rods each which will be anchored into a wood sheet..

The whole thing should be a swing..
« Last Edit: September 21, 2017, 02:41:10 AM by sourcecharge »

Offline sourcecharge

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Re: Tesla Stove
« Reply #6 on: September 27, 2017, 12:32:09 AM »
So I've done some testing and I have brought it up to at least 1000rpm...but I am not observing a directed force that is noticeable...

At first I thought about changing the length of the load arms, increasing the load by 2x, and positioning the load at the tip...

But then I stopped and reviewed the centripetal force it had been awhile since I've had to do them...

Force = m x r x (2 x Pi x frequency)^2

This assumes a uniform circular path...

So, taking this equation, increasing the rpm should increase the force exponentially...but also, the radius of the path can be important....

If we were to break this down into two parts, one being the outer radius of which the load travels on, and the second, the inner radius of which the load rotates round, we find that from lower to higher rpm, the amount of force from the outer to the inner radial paths is 1:1...

But if the inner load radius is increased to being greater than the outer radius, then I think there might be a difference then just increasing the weight or re-positioning the load at the tip but shorter than the outer radius...

What I'm thinking about doing is using split loads that would be longer than the outer radius, that would not interact with the center main axle.....

Checking my support structures I have found that the two cross bars would get in the I have to redesign it to allow the crossbars to be out of the way....

All I have to do increase the height of the spacer (the triangular shaped stool) to increase this distance.... new load carriers that will withstand such forces and be long enough to be longer than the outer radius...and cutting new threaded rods to allow the increases (main axle, rotational axles (2 per quarter), and support structure rods (3long + 2 short per quarter)) , and I might do a little increase in efficiency design...

That means more freecad and more 3-D printing...

So, this might take some time....(1 or 2 months)...