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Author Topic: Band sharpener oil catch / recovery  (Read 1041 times)

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Offline Southside logger

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Band sharpener oil catch / recovery
« on: May 29, 2018, 10:17:29 PM »
So I picked up a Wood Mizer BM250 CBN style sharpener for my saw.  Been reading a lot of threads about the tricks and how to's on getting the best results.  My question is do any of you guys have a system attached to the chimney to collect and catch stray oil vapor that rises out of it?  I am not looking to re-use the oil, rather not make a compete mess.  

I was brain storming about a small squirrel cage or bath fan to create a negative draft and then running the precipitate into a 5 gallon pail with a small cyclone on the top, just not sure if the oil would fall out that way or it needs to be plumbed differently.  

Appreciate any input and or photos.  
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Offline YellowHammer

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Re: Band sharpener oil catch / recovery
« Reply #1 on: May 29, 2018, 10:49:54 PM »
I covered my chimney with duct tape as well as flaps of duct tape where ever I see the oil splattering out.  It does make a mess.  

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Offline Southside logger

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Re: Band sharpener oil catch / recovery
« Reply #2 on: May 29, 2018, 11:19:42 PM »
Thanks Hammer,  
Do you use the WM oil or something different?
Franklin buncher and skidder
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Riehl Edger
Woodmaster 725 and 4000 planner and moulder
Enough cows to ensure there is no spare time.

Offline xlogger

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Re: Band sharpener oil catch / recovery
« Reply #3 on: May 30, 2018, 05:17:00 AM »
I've always wonder why they put the chimney on it.
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Offline PA_Walnut

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Re: Band sharpener oil catch / recovery
« Reply #4 on: May 30, 2018, 05:32:31 AM »
I covered my chimney with duct tape as well as flaps of duct tape where ever I see the oil splattering out.  It does make a mess.  


I just bought one and was wondering the same. Would actually having a vent/fan to outside help?
I own my own small piece of the world on an 8 acre plot on the side of a mountain with walnut, hickory, ash and spruce.
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Offline mike_belben

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Re: Band sharpener oil catch / recovery
« Reply #5 on: May 30, 2018, 01:55:21 PM »
The name of the game in catching junk like that is surface area first, and drip back collection second.  In the good ol days the "slobber tube" coming out of your grand dads valvecover had a big chunk of brillo in it to recover and drip back as much oil as was possible.  

Take that concept and make it work for you.  Things i have used in my industrial life are steel wool, a big length of lighting chain layed into a can, scotch brite, the center puck out of a floor buffer pad, layers of screen, etc etc.  Anything that can flow lots of air through but still have surface area to collect the vapors will condense them. Then drip down so figure out your drainback line.  


How about a ductwork "S" trap full of swingset lighting chain with a hole at the bottom dripping into a funnel wired under it.. With a hose on the funnel into a jug?
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Offline YellowHammer

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Re: Band sharpener oil catch / recovery
« Reply #6 on: May 30, 2018, 06:13:30 PM »
I use the WM oil, I bought 5 gallons and still have half a jug left.  I would say for true OSHA Resiratory Safety, used indoors, the chimney is supposed to be attached to a suction duct or fume extractor and vented outdoors, to remove the oil fumes from the closed workspace.  

I just open my garbage doors to get good ventilation.  I use black rubber Bar B Q gloves I got from somewhere to handle the oily bands and to keep my hands from getting oil all over them.  
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Offline Southside logger

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Re: Band sharpener oil catch / recovery
« Reply #7 on: May 30, 2018, 10:09:51 PM »
Thanks Mike - basically build a giant PCV but with suction rather than positive pressure.  That would allow me to keep the fan upstream of the trap and not have a permanently oiled fan.  I wonder if a 4" PVC "P" trap with the drain right at the bottom and collector screens on either side of the drain would work.  I suspect I would have to trap the drain tube as well to prevent backflow entering there.  

Hammer - good to know the oil lasts awhile given what they charge for it.  Really wish I had made it down to Custom Sawyers event this year to pick all your brains on running the unit.   
Franklin buncher and skidder
JD Processor
Woodmizer LT35 sawmill, KD250 kiln, BMS 250 sharpener and setter
Riehl Edger
Woodmaster 725 and 4000 planner and moulder
Enough cows to ensure there is no spare time.

Offline PA_Walnut

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Re: Band sharpener oil catch / recovery
« Reply #8 on: May 31, 2018, 04:51:48 AM »
ammer - good to know the oil lasts awhile given what they charge for it.  Really wish I had made it down to Custom Sawyers event this year to pick all your brains on running the unit.   


Tru'dat. Looks like it's gonna rain over the weekend, so time to get some blades sharpened. I put mine in a little "mill shed" that houses my mill related stuffs, so I can swing the doors open too.

Yellow, do you clean your blades before sharpening? I saw mention somewhere about doing that. Mine often get some muck on them and/or rust.
I own my own small piece of the world on an 8 acre plot on the side of a mountain with walnut, hickory, ash and spruce.
LT40HD Wide 35HP Diesel
Baker Portable Edger with Kubota Diesel
Kubota M62 Tractor/Backhoe
WoodMizer KD250 Kiln

Offline YellowHammer

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Re: Band sharpener oil catch / recovery
« Reply #9 on: May 31, 2018, 07:56:23 AM »
The bands should be clean to allow the setter clamps a solid, flat surface.  Most times my bands come off the mill very clean, with an oily surface from blade lube I use.  That's a big advantage to using an oil emulsion, no rust on the band, virtually no buildup.   

If there is any sawmill buildup, it's on the inside of the band. So, I've got a Cooks setter, and as the band is fed through the clamps there is a piece of metal that has a right angled, sharp edge that I have adjusted to scrape the inside of the band when it comes around.  So whatever buildup in on the band gets removed and lands on the floor as part of the setting process.  I'm sure it wasn't designed this way, but it does a decent job as a scraper.

When I visited WM Resharp, they had a neat rig with wire wheels that they would run a band though and it would oil and scrape all the debris off the band.  Kind of like a car wash for band.  Some on the bands they get look like they were left out on the ground and stomped in the mud.  Really nasty.  
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Offline PA_Walnut

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Re: Band sharpener oil catch / recovery
« Reply #10 on: May 31, 2018, 09:16:19 AM »
The bands should be clean to allow the setter clamps a solid, flat surface.  Most times my bands come off the mill very clean, with an oily surface from blade lube I use.  That's a big advantage to using an oil emulsion, no rust on the band, virtually no buildup.   

Nice. What kinda lube are you using for that? Mine get caked-up and rust easily. If I leave them outside a bit, they get crappy.
I own my own small piece of the world on an 8 acre plot on the side of a mountain with walnut, hickory, ash and spruce.
LT40HD Wide 35HP Diesel
Baker Portable Edger with Kubota Diesel
Kubota M62 Tractor/Backhoe
WoodMizer KD250 Kiln

Offline Percy

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Re: Band sharpener oil catch / recovery
« Reply #11 on: June 01, 2018, 10:46:51 AM »
I have a BM250 as well and prior to that, a "converted to CBN" type grinder. That oil they recommend seem hard on lungs, shop,etc. A few years back I ran out of the oil and ,in a situation where I needed to sharpen immediately, I used #46 hydraulic oil. Its a tad thicker and on cold days, takes a little while to start flowing but at least I can close the door and breath while the stove warms everything up. There is no smell and very little if any mist. I've used that since and wont switch back to the "gold" stuff they sell.
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Offline D6c

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Re: Band sharpener oil catch / recovery
« Reply #12 on: June 20, 2018, 05:50:54 PM »
Never been around a WM BM250 but have done a ton of grinding with cbn & diamond wheels in machine shops.  Only coolant I've seen used in many years is the waster mixed synthetic coolants.
Is there a particular reasong WM uses and oil?  Oil mist is pretty nasty.


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