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Re: See the new dust collector?
开云体育Yes, I think the Blue Tornado guy was in a car accident and was in hospital for a long time before he died.? I talked to his Mother while he was there and it was a sad deal.? He oversized his impeller compared to Oneida and pretty much maxed out the amp
draw.? Oneida tends to be pretty conservative so a 5 hp impeller usually runs a 15" impeller rather than a 16" which in many cases is more appropriate.? He did his own cyclones and while not as well designed as a commercial Torit type, they were ahead of the
Oneida curve and had a baffle tube inside before Oneida finally put one in. I think Pentz was instrumental in that change.? Dave From: felder-woodworking@... on behalf of Brian Lamb blamb11@... [felder-woodworking] <felder-woodworking@...>
Sent: Friday, December 2, 2016 11:57 AM To: FOG Subject: Re: [felder-woodworking] See the new dust collector? ?
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Death in the family shut it down years ago. IMO they had the best designed fan on the market, the cast the housings and did all the machine work themselves.
On Dec 2, 2016, at 9:20 AM, John jmkserv@... [felder-woodworking] <felder-woodworking@...> wrote:
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Re: Blades for K700S
开云体育Leitz, Nap Gladu, Royce Ayr, Guhdo, Leuco, Tenyru, and forrest are all good blades.? The sharpener is more important so if the Leitz place sharpens anything you are golden.? I have a combination 40t on most of the time and it is good enough with a scorer that I seldom bother to change but do like to have a crosscut blade available.? I also have a rip blade but find I seldom bother with it on any stock under 2" as the combo blade does fine.
I would make sure the combo and the crosscut blade have the same kerf and make sure the sharpener keeps them that way.? I have doubles so I can send both to the sharpener together ( Gladu is local for me ) . Re adjusting a scorer is for each blade is a pain
so avoid it if possible.? A decent split scorer is fine from any company.? I've found some from Royce Pacific ( Asian ) that work as well as any.? Dave From: felder-woodworking@... on behalf of David Davies myfinishingtouch@... [felder-woodworking]
Sent: Friday, December 2, 2016 12:21 PM To: felder-woodworking Subject: Re: [felder-woodworking] Blades for K700S ?
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I ordered Felder blades.?
What you really need is David Best's "Felder Unofficial
Survival Guide book"
Dave
On Fri, Dec 2, 2016 at 10:45 AM, George
george954679@... [felder-woodworking] <felder-woodworking@...> wrote:
-- Dave & Marie Davies
318-219-7868 |
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Re: Blades for K700S
I ordered Felder blades.? What you really need is David Best's "Felder Unofficial Survival Guide book" Dave On Fri, Dec 2, 2016 at 10:45 AM, George george954679@... [felder-woodworking] <felder-woodworking@...> wrote:
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Dave & Marie Davies
318-219-7868 |
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Re: See the new dust collector?
开云体育Death in the family shut it down years ago. IMO they had the best designed fan on the market, the cast the housings and did all the machine work themselves.
On Dec 2, 2016, at 9:20 AM, John jmkserv@... [felder-woodworking] <felder-woodworking@...> wrote:
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Blades for K700S
George
Hello all, I have a new K700S due to arrive next week to my shop. I need to get some blades for it. I got a recommendation to check into Leitz blades from a guy who has a lifetime of experience and who's opinion I trust. Reasonable initial cost, good performance and Leitz 's reputation for being able to consistently re sharpen their blades to a high standard all appeals to me. It seems like a good value. I plan on building kitchen cabinets. (Plywood boxes, hardwood face frames and doors drawer fronts, etc.) I guess I'll need a main blade and a scoring blade to handle hardwood veneered plywoods, probably a combination blade, a crosscut blade?,a rip blade?,and any other suggestions anyone may have. (The more I learn, the more I realize how little I know.) The saw has a 7.5 hp,5.5kw,3ph main motor. 4800 rpm. 30 mm arbor with lugs. Blade can be 250mm-315mm in diameter. The electronic scoring unit has 20mm arbor and the manual says the blade can be 100 mm maximum in diameter* (*when used with a 300 mm main blade) I don't understand what difference the size of the main blade makes since they are adjusted independently of each other, but that is what the manual says. I called Leitz. The sales guy was friendly, but I knew I was in trouble when he said he had never heard of Felder. He said he'd only been there 6 months and was still learning. Their websites does show blades for a number of different saw manufacturers and Felder is not one of them. He was not able to locate a small enough scoring blade for the K700S and seemed pretty unsure of himself on everything else. Do any of you guys use Leitz blades on your Felder equipment? If so do you have any specific recommendations? I am open to other blade manufacturers too, not just Leitz. The great re sharpening reputation Leitz has is very appealing though. Thanks everyone, I appreciate this website a great deal. George Gerstner, Ostrander,Ohio
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Re: See the new dust collector?
开云体育Hey Brian IMHO this is what makes the forum great, we can discuss a subject to death, express an opinion, have a bitch session. I wonder what happened to that company/design. I ?know a lot of vendors have pulled their socks up since Bill took at shot at their designs. Unfortunately there is still a lot garbage still out there.? John JMK Services? -------- Original message --------
From: "Brian Lamb blamb11@... [felder-woodworking]" <felder-woodworking@...> Date: 2016-12-02 10:56 AM (GMT-05:00) To: FOG <felder-woodworking@...> Subject: Re: [felder-woodworking] See the new dust collector? ? I didn’t mean to start such a back and forth by mentioning a new style DC unit…. but my point here is the dust emitted is most certainly volume when spoken of in mg/m3 and that might not have any bearing on particle size. For example, say this new fangled unit through it’s “mechanical” design, filters out all particles above10 micron and below 2 micron, just from the nature of it’s design and cyclonic action, then all the filter you would need is a 2 micron and you’d have pretty minimal escape of measurable particles. Now, I’m not saying it does this, just that it could. A fan and a dust bag system is only going to filter as well as the dust bag can capture. But, when you have some sort of mechanical separation, you might have a whole different sort of clean. Many years ago, I was at a woodworking show and there was a company, Blue Tornado Cyclones I think it was, they had no bag or filter on the exhaust, sucked up a 5 gallon bucket of chips from another show vendor, and they had a black cloth hanging behind the open exhaust pipe…. absolutely no visible dust made it out of the cyclone… so it was obviously pretty decent at filtration mechanically.
On Dec 1, 2016, at 4:33 PM, David Luckensmeyer dhluckens@... [felder-woodworking] <felder-woodworking@...> wrote:
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Re: See the new dust collector?
开云体育I didn’t mean to start such a back and forth by mentioning a new style DC unit…. but my point here is the dust emitted is most certainly volume when spoken of in mg/m3 and that might not have any bearing on particle size.For example, say this new fangled unit through it’s “mechanical” design, filters out all particles above10 micron and below 2 micron, just from the nature of it’s design and cyclonic action, then all the filter you would need is a 2 micron and you’d have pretty minimal escape of measurable particles. Now, I’m not saying it does this, just that it could. A fan and a dust bag system is only going to filter as well as the dust bag can capture. But, when you have some sort of mechanical separation, you might have a whole different sort of clean. Many years ago, I was at a woodworking show and there was a company, Blue Tornado Cyclones I think it was, they had no bag or filter on the exhaust, sucked up a 5 gallon bucket of chips from another show vendor, and they had a black cloth hanging behind the open exhaust pipe…. absolutely no visible dust made it out of the cyclone… so it was obviously pretty decent at filtration mechanically. On Dec 1, 2016, at 4:33 PM, David Luckensmeyer dhluckens@... [felder-woodworking] <felder-woodworking@...> wrote:
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Re: See the new dust collector?
So here is the conundrum, no matter how you want to look at it, whether you're minimizing particle concentration by filter size/type or volume of air you're measuring, what is been done is the removal of particles that are ?suppose to be harmful. One reality is that we are actually making the particles size so small that they can only be trapped in the finest section of our own defence system or pass directly into the blood stream. On Fri, Dec 2, 2016 at 3:33 AM, murkyd@... [felder-woodworking] <felder-woodworking@...> wrote:
--
John Kee
JMK Services |
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Re: See the new dust collector?
> I would argue that the assumption of a distribution of particle sizes is more than?
> justified in any woodworking context. My point was not that?distribution doesn't exist, but?that it can vary widely, including real-world cases where a comparatively larger filter size will not necessarily result in higher mg/m3, such as fine sanding operations (predominantly sub micron particles) and comparing 1 to 5 micron filters. Clearly however, for a given particle source, the lower the mg/m3, the better the filtration. ?By trying to correlate mg/m3 to filter sizes in any precise way is probably hopeless.? Trying to correlate filter size to health protection in any precise way is hopeless too. ?What matters is how much dust ends up in your lungs, which is a lot more closely correlated to mg/m3 than to filter specs, which by themselves say absolutely nothing about the actual resultant post-filtration dust density, since that depends on other factors like the dust generation rate and the air handling in the space. ? If I pump X quantity of particles thru a filter into a 500 sqft shop, the result is a lot different than pumping it into a 5,000 sqft shop. ?And if the shop air handling has say 5 air exchanges per hour, vs. say 15, the results are very different as well. |
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Re: See the new dust collector?
"You're presumably assuming a distribution of particles, including ones that are larger than than the smaller filter size.? For example, if the source includes 2 micron particles, then they will pass thru the 5 micron filter but not the 1 micron filter, so the 5 micron filter would yield a higher mg/m3 level." I am definitely assuming a distribution of particles.? I don't know about everyone else, but when I empty my dust collector bin there is a wide range of sizes of chips and sawdust and a much smaller amount of finer stuff in the filter stack cleanout.? Clear evidence of a range of sizes, so I would argue that the assumption of a distribution of particle sizes is more than justified in any woodworking context. On Fri, Dec 2, 2016 at 12:53 AM, murkyd@... [felder-woodworking] <felder-woodworking@...> wrote:
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Re: See the new dust collector?
> but changing the micron level of the filter will definitely impact the mg/m3 level.? I see no? > way around that concept.? If your filter is actually filtering anything at all, then increasing > the max micron level of the filter will by definition allow more particles through which > will increase the mg/m3 level. Not necessarily. ?Suppose you have a stream of <0.5 micron particles. ?A 5 micron filter won't let through more of these particles than a 1 micron filter will -- all the particles pass through either filter. You're presumably assuming a distribution of particles, including ones that are larger than than the smaller filter size. ?For example, if the source includes 2 micron particles, then they will pass thru the 5 micron filter but not the 1 micron filter, so the 5 micron filter would yield a higher mg/m3 level. Mark ---In felder-woodworking@..., <jscuteri@...> wrote : I don't see how the micron level of the filter and the mg/m3 are not directly related (not necessarily a linear relationship).? Of course they are not the same thing, but changing the micron level of the filter will definitely impact the mg/m3 level.? I see no way around that concept.? If your filter is actually filtering anything at all, then increasing the max micron level of the filter will by definition allow more particles through which will increase the mg/m3 level. ? mg/m3 is not a measure of volume, it is more a definition of "dust density". Wood dust and health risks seems to be a controversial topic without any clear authority to draw conclusions from.
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Re: See the new dust collector?
开云体育Haha! All good John. I'm full of 95% shit, any advances...? Warm regards, David Dr David Luckensmeyer Practice Manager Luckensmeyer Medical Pty Ltd ? and Designer and Woodworker Original Designs in Wood ? On 2 Dec. 2016, at 12:21 pm, John Kee jmkserv@... [felder-woodworking] <felder-woodworking@...> wrote:
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Re: See the new dust collector?
GLEN
As a newbe I just want to say The information you have provided me so far is priceless, on the other side I like that you all can shovel out the BS too.
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I had a moment to look at a few of your websites and I have to say I am impressed. I don't know you all yet, who is who, where your at, and what you really do but you have helped me and open my eyes to that there is alot more i need to look at. Right now im trying to close a LTL on my building.? once done I am all over you guys to help me with input to put this all together. Thank you all Glen Christensen -----Original Message----- From: John Kee jmkserv@... [felder-woodworking] <felder-woodworking@...> To: FOG Sent: Thu, Dec 1, 2016 6:21 pm Subject: Re: [felder-woodworking] See the new dust collector?
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Its OK Lucky you can say it, I'm full of shit. LOL
On Thu, Dec 1, 2016 at 9:19 PM, Luckensmeyer David dhluckens@... [felder-woodworking] <felder-woodworking@...> wrote:
John Kee
JMK Services
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Re: See the new dust collector?
Its OK Lucky you can say it, I'm full of shit. LOL On Thu, Dec 1, 2016 at 9:19 PM, Luckensmeyer David dhluckens@... [felder-woodworking] <felder-woodworking@...> wrote:
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John Kee
JMK Services |
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Re: See the new dust collector?
开云体育Wow John. Pure entertainment huh? At least 90% of the time? I didn't know you were so knowledgeable. ? Warm regards, Lucky On 2 Dec. 2016, at 11:29 am, John jmkserv@... [felder-woodworking] <felder-woodworking@...> wrote:
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Re: See the new dust collector?
开云体育
David Best |
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Re: See the new dust collector?
开云体育Awe David say it ain't so. Companies aren't manipulating numbers to sell products. That's almost as bad as bean counters and marketing departments running a company.? John JMK Services? -------- Original message --------
From: "'david@bestservices IMAP 2' david@... [felder-woodworking]" <felder-woodworking@...> Date: 2016-12-01 8:31 PM (GMT-05:00) To: felder-woodworking@... Subject: Re: [felder-woodworking] See the new dust collector? ? Like I said - just like dust collection specifications.
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Re: See the new dust collector?
开云体育Like I said - just like dust collection specifications.
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Re: See the new dust collector?
开云体育I was being serious, I don't watch, read or listen to the news. 90% is pure bullshit. Those that control the media and the information only give you enough for control and manipulation. But Thanx for the articles. ? There's an old saying, ?believe none of what you read and half of what you see.? These forums are nothing but pure entertainment and a slight diversion with maybe 10% useful information.? John JMK Services? -------- Original message --------
From: "'david@bestservices IMAP 2' david@... [felder-woodworking]" <felder-woodworking@...> Date: 2016-12-01 8:05 PM (GMT-05:00) To: felder-woodworking@... Subject: Re: [felder-woodworking] See the new dust collector? ?
Not sure if you’re being sarcastic or serious, but just in case . . . . David Best |
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Re: See the new dust collector?
开云体育
Not sure if you’re being sarcastic or serious, but just in case . . . . David Best |
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David Luckensmeyer
David P. Best