Should anyone want info on the plans, just send me an e-mail at spikee@lewiscounty.com and I'll send you 3 pages of propaganda.

Buud,

I am from Holland and running my 1996 and 1982 Benzes on WVO. So far I had someone else do the filtering, but as prices have increased, I am considering to do the filering myself. With the current dieselprice of around 2 USD/ltr, the SVO/WVO have increased in price as well.
As it is rather common to filter instead of using centrifuges, I will be more than happy to apply a method that doesn't cause dirty hands..at least not that much.


I would be much obliged if you could send me what refer to as your propaganda.....to :

ingmar.hoogendijk@ericsson.com

Best Regards from Holland,
Ingmar

just wanted to add my 2 cents here. i purchased buuuud's plans about 2 months ago. plans are what everyone has said. they are good enough to explain and to be understood by a machinist. in fact, ive shopped around to find out what it would cost to fab this to several machinists. just for the labor alone, most quoted in the $400 to $500 range for a centrifuge milled from a single piece of stock

so this is why i did not proceed and i think maybe others stopped at this point too. the cost advantage is not there unless:

1) you can source a good block of aluminum for cheap or free. otherwise, brand new is a few hundred
2) labor, esp if the machinist fab's it from 1 solid piece
3) you need to source a motor.

a few machinists suggested they make it in 2 parts. however, it would need to be welded then balanced. so tack on another cost to the total.

so bottom line is that if you decide to make one yourself using buuuuud's good plans and be price competitive for what you can buy out there, the only way i can see is to have a friend who is a machinist (or yourself) and get cheap material.

has anyone thought about putting a simple bowl on top of a heavy balanced flywheel?

more spinning mass (which is incredibly easy to machine or find pre-made, no balancing necessary) reduces the vibration effect of a bowl full of oil. if the flywheel is much heavier than the oil and the centrifuge bowl, the effects of the bowl being unbalanced would be negligible.

biotour- It would be nice to see if some inventive people here can come up with a rotor similar to the example that you mentioned in your post .

Some bowl type rotor centrifuge projects-

http://biodiesel.infopop.cc/ev...551/m/7921086332/p/1


An interesting way to make the rotor -

http://www.frybrid.com/forum/showthread.php?t=13805

A plastic rotor (still in development ?)-

http://www.greasecar.com/forum...cfm?frmtopicID=16874

http://s279.photobucket.com/al...8/blhfla/centrifuge/ - click on slideshow



I agree with the post by Bob_98SR5 on getting a custom aluminum rotor made not being cost effective for most of us at this point in time .

Complete bowl type rotor centrifuges for cleaning WVO / WMO are now available . The rotors are available separately for DIY -

http://www.refuelz.com/

http://www.absolutecentrifuge.com/store.aspx

www.simplecentrifuge.com

http://www.wvodesigns.com/inde...oducts.html?TreeId=1



( The other current practical WVO centrifuge option is the oil pressure driven centrifugal oil cleaner ( Dieselcraft, Spinner II ,Filterfuge , etc) as configured by SunWizard (thanks) - http://biodiesel.infopop.cc/ev...9605551/m/2001011761 )


other DIY / homebuilt centrifuge links -

http://biodiesel.infopop.cc/ev...551/m/3861038251/p/6


http://www.powerstroke.org/for...fuge-home-build.html


http://www.fillup4free.com/ind...&file=article&sid=28

This message has been edited. Last edited by: rkpatt,

Has anyone thought of trying one of these?

http://www.laundry-alternative...ucts/Spin_Dryer.html

They are around $130. There is a smaller one available for around
$80.

I have an old Bock laundry extractor with a 13" bowl that turns 1800 rpm
that I am going to try. I plan to put a sheet of tin inside of the bowl
to bock the holes. The3 bowl has a heavy weight on the bottom to balance
an uneven load.

Tom

Other sellers of a bowl type centrifuge -

http://www.wolverinetechnologi....com/centrifuge.html

http://www.refuelz.com/

This message has been edited. Last edited by: rkpatt,

quote:

Originally posted by Bob_98SR5:
just wanted to add my 2 cents here. i purchased buuuud's plans about 2 months ago. plans are what everyone has said. they are good enough to explain and to be understood by a machinist. in fact, ive shopped around to find out what it would cost to fab this to several machinists. just for the labor alone, most quoted in the $400 to $500 range for a centrifuge milled from a single piece of stock

so this is why i did not proceed and i think maybe others stopped at this point too. the cost advantage is not there unless:

1) you can source a good block of aluminum for cheap or free. otherwise, brand new is a few hundred
2) labor, esp if the machinist fab's it from 1 solid piece
3) you need to source a motor.

a few machinists suggested they make it in 2 parts. however, it would need to be welded then balanced. so tack on another cost to the total.

so bottom line is that if you decide to make one yourself using buuuuud's good plans and be price competitive for what you can buy out there, the only way i can see is to have a friend who is a machinist (or yourself) and get cheap material.

I built mine out of four pieces, it was the easiest way to machine the rotor. We used extra thick steel so the weight would help control any out of balance issues. All 'balancing' was done on the lathe.

Aluminum is not neccesary. Unless you have access to an AC TIG and know how to use it I wouldn't bother with aluminum. Steel rotors work great as long as you clean it out right after using it (a lot of water builds up while fuging WVO).

Once cleaned all it needs is a good coat of oil to prevent rust, not much of an issue for people like us

When I figure out how the heck to start a thread I can give some more details and maybe a step by step under the 'Biodiesel Equipment' section.

Here is a pic of mine 'fuging' some City of Tempe tap water. It created a huge mist cloud and after just one hour of operation we shut it down to find a thick brownish/black sludge remaining. Makes it difficult to crink out of the tap now



A rotor type centrifuge is a must for any homebrewer making more than 100 gallons at a time on a regular basis. I built this unit for less than $200, and I need to build a better container and expect it to run less than $100.

buckeyebiodiesel- Yes, I it would be great to see the details of your CF project . You can start a new thread by clicking "NEW" then "Discussion" in the green tool bar near the upper left of the page .

rkpatt, thanks for the tip! I managed to get a thread up.
Here is the link:
How to build a centrifuge

I am also going to detail on another thread the heat exchanger I built for my gas and diesel powered pumps. On my little gas pump it works out to about 15,000btu's of free heat per hour. Haven't fired it up yet, but on paper it looks good!

Hi, are any of you people still out there??