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Homemade Visco fuse machine ! Almost done !


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#1 Svimmer

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Posted 03 February 2018 - 07:18 PM

Made a really small visco fuse machine!
 
got pretty suprised about the size when i printed out the templates.
Still need some work to make it run really good. Next thing i need to get done is bearings.
Once everything runs smooth it would be fun to add a engine to it.
 

Edited by Sondre, 03 February 2018 - 07:22 PM.


#2 Col

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Posted 03 February 2018 - 08:25 PM

Nice job, cant beat a bit of birch ply ;) I`d create bearing housings in the mounts with a forstener bit and press the bearings in, wont take more than 5 minutes.


Edited by Col, 03 February 2018 - 08:30 PM.

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#3 Svimmer

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Posted 03 February 2018 - 08:27 PM

Nice job, cant beat a bit of birch ply ;)

Thanks just got done with the collector



#4 chuckufarley

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Posted 03 February 2018 - 08:56 PM

I like the use of a single belt to drive the separate plates in opposite directions. Very clever, looking forward to how it works in the end
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#5 Svimmer

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Posted 03 February 2018 - 09:20 PM

 

Heres a short clip of how the collector is setup



#6 Flognaw123

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Posted 04 February 2018 - 07:23 PM

Very nice and well built!
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#7 Svimmer

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Posted 08 February 2018 - 05:42 PM

Just made this powder die but i didnt do any research on how to make it so it did not turn out relly good but hopefully it gets the job done!

 

http://bildeopplaster.no/BWH



#8 vendrite

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Posted 08 February 2018 - 10:18 PM

Great job, who's got a set of plans with dimensions?



#9 Svimmer

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Posted 08 February 2018 - 10:26 PM

Great job, who's got a set of plans with dimensions?

Thanks

 

https://drive.google...UW5sVGpIcGZyblE

There you go 


Edited by Svimmer, 08 February 2018 - 10:27 PM.


#10 Svimmer

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Posted 12 February 2018 - 01:25 AM

http://bldr.no/BWz

 

Tracer done !

 

The funnel is just temporary until i get one i ordered online. Still trying to find a good way to put the funnel.



#11 vendrite

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Posted 12 February 2018 - 07:43 AM

Your powder die looks like it will work. Thanks for sharing


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#12 Svimmer

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Posted 12 February 2018 - 02:05 PM

I tested with some powder and it flows good until it get stuck. it might be because the powder is not 100% dry because i just cleaned the ballmill before i made the powder and it did clump in the mill so if it dosen't help to dry it then i need to granulate it. If that dosen't work then i have a problem.

 

Edit: After granulating it flows really good


Edited by Svimmer, 12 February 2018 - 10:47 PM.


#13 davidh

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Posted 13 February 2018 - 09:55 AM

Kosanke wrote an article on defective fuse, and found that small changes in the mesh size of the granulated powder strongly affected burn rate.


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#14 Svimmer

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Posted 14 February 2018 - 04:14 AM

http://bldr.no/BX5

 

The powder.



#15 Svimmer

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Posted 19 February 2018 - 09:54 AM

 
 
 
First fuse made with the machine !
 
There is still some stuff i need to fix with the machine. i did put on som bearings i had but they where really bad so the plates is not straight anymore. so need to get new ones. and the bobbins jump off easy because the plates are not straight anymore. also the thread i had is not cotton. i have ordered bearings and thread now.


#16 Svimmer

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Posted 19 February 2018 - 11:50 AM

 

Heres how it burns. Yep way to fast so need to use another powder size.



#17 Sleipner

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Posted 19 February 2018 - 02:16 PM

..and/or use a slower burning formula. It was also changing burn rate along the way a bit. If you look at the fuse in your previous post the weaving is a bit uneven along the way giving different level of containment. I'm guessing that the fuse is not pulled through at a constant rate relative to the spinning disks, but a bit faster and slower here and there due to the rubber band belt. Maybe you can swap the rubber band for something stiffer that doesn't stretch?
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#18 Svimmer

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Posted 19 February 2018 - 02:33 PM

..and/or use a slower burning formula. It was also changing burn rate along the way a bit. If you look at the fuse in your previous post the weaving is a bit uneven along the way giving different level of containment. I'm guessing that the fuse is not pulled through at a constant rate relative to the spinning disks, but a bit faster and slower here and there due to the rubber band belt. Maybe you can swap the rubber band for something stiffer that doesn't stretch?

It is not a rubberband. it dosent stretch. the reason for the uneven weaving was because of 2 of the threads jumped off so i just cut them off just to test the fuse. im going to fix few things and il do and update.


Edited by Svimmer, 19 February 2018 - 02:34 PM.


#19 Svimmer

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Posted 19 February 2018 - 02:35 PM

..and/or use a slower burning formula. It was also changing burn rate along the way a bit. If you look at the fuse in your previous post the weaving is a bit uneven along the way giving different level of containment. I'm guessing that the fuse is not pulled through at a constant rate relative to the spinning disks, but a bit faster and slower here and there due to the rubber band belt. Maybe you can swap the rubber band for something stiffer that doesn't stretch?

Oh are you talking about the collector ?



#20 Sleipner

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Posted 19 February 2018 - 02:37 PM

Oh are you talking about the collector ?


Yep, that's the one that determines the pull through rate.



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