Hi, now I think it is clear. My router is exactly the same wait and horsepower so I will try the same as you suggest. Thanks again. Max.
On 11/04/2010 08:35, Dale Leavens wrote: > Slow down with big bits. Big shaft you can increase speed. Mostly though just > listen and smell. Smoke indicates burning. this can be high speed slow > progress where the cutter ends up spinning in the same place a long time > creating burning heat. If this is because you can't push the router through > then reduce the depth. > > Mostly I take pretty deep cuts because I am lazy and usually get away with > it. If your router is like mine you can set three depths with the turret. > This may not be quite enough for really deep mortises but for most grooves > and dados I am in 3/4ths plywood and going about half depth so I make the cut > in one pass, about 3/8ths deep. No doubt this is a bit aggressive for some > people but a 3/4ths cutter on a half inch shaft with a 3 and a quarter > horsepower router that weighs about fifteen pounds won't mind that a all. If > it is struggling then just slow it down a little. > > If I was Han Solo I'd probably pet my wookie > ----- Original Message ----- > From: Agent086b > To: [email protected] > Sent: Saturday, April 10, 2010 5:53 PM > Subject: Re: [BlindHandyMan] Cutting depth per cut > > > > > Hi, > well there is a lot to comprehend in this info. I have a big new Triton > router and will be using a 12 mm shafted bit,. I think that is about > half inch. > I can put a quarter inch Colet in for smaller bits. I do have variable > speed settings. Are you saying the smaller the bit the faster the speed > setting? Sorry if I am a bit thick. > Thanks again for all the answers so far. > Max. > On 10/04/2010 22:41, Dale Leavens wrote: > > While you won't go far wrong with a shallow 8th inch depth of cut this > is dependent on a few variables. > > > > The power of the router. I have a big old triton which will drive an > inch diameter bit through an 8th inch cut in the hardest wood without > noticing it. > > > > The size of the bit of course. The cross sectional area increases > following the inverse square law so, a half inch bit has four times the cross > sectional area of a quarter inch bit and a 1 inch bit is 16 times the cross > sectional area of a quarter inch bit. Similarly, as the outer diameter > increases so the distance or the amount of cutting surface which passes a > particular point increases.A one inch bit has nearly three inches of distance > around the outside, at 30 thousand revolutions per minute that is 90 thousand > inches a minute or about 24 inches a second compared with a quarter inch bit > which will present more like 6 inches a second.This has not only resistance > implications but heat generations and other concerns. > > > > Then there is the shaft size. A half inch shaft will take a lot more > load than a quarter inch shaft, remember here the inverse square law. > > > > I am unaware of any safety recommendations for depth of bit cut > probably because of these variables and probably several others I haven't > thought of. > > > > Use load as your guide. You can probably make quarter inch depth passes > or even a little more but judge your speed and depth by how the motor pulls > down.Generally the bigger the bit the slower your speed both of progress and > RPM should be if you have the luxury of variable speed. > > > > I find it helpful to blow out the cut between adjustments, be a little > careful though, sometimes those cuttings are smoking. They can pack nearly as > tight as the wood you are cutting and it all adds resistance to the second > and subsequent passes. > > Hope this is helpful. > > > > > > If I was Han Solo I'd probably pet my wookie > > ----- Original Message ----- > > From: Bob Kennedy > > To: [email protected] > > Sent: Saturday, April 10, 2010 7:06 AM > > Subject: Re: [BlindHandyMan] Cutting depth per cut > > > > > > > > If you are just making a round hole, go as deep as you want. > > > > If you are making a mortise type cut that means you have to move the > wood over the bit, you can make the end cuts as deep as they need to end up. > Then come back and cut no more than an eighth, of an inch, 5 millimeters over > there. > > > > ----- Original Message ----- > > From: Agent086b > > To: Handyman > > Sent: Saturday, April 10, 2010 3:05 AM > > Subject: [BlindHandyMan] Cutting depth per cut > > > > Hi all, > > well have just purchased my first router and router table so will have > > many questions. > > For a start. > > If I wish to make a plunge cut, with say a 12 mm diameter bit. what is > > the maximum depth I should go for a first pass? > > I am not sure if this is explaining myself correctly, so I will wait for > > the responses and modify the question if necessary. > > Thanks as always for the great help. > > Max. > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > ------------------------------------ > > > > Send any questions regarding list management to: > > [email protected] > > To listen to the show archives go to link > > > http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 > > Or > > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > > > The Pod Cast address for the Blind Handy Man Show is. > > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > > > Visit The Blind Handy Man Files Page To Review Contributions From > Various List Members At The Following address: > > http://www.jaws-users.com/JAWS/handyman/ > > > > Visit the archives page at the following address > > http://www.mail-archive.com/[email protected]/ > > > > If you would like to join the JAWS Users List, then visit the following > address for more information: > > http://www.jaws-users.com/ > > For a complete list of email commands pertaining to the Blind Handy Man > list just send a blank message to: > > [email protected]! Groups Links > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > ------------------------------------ > > Send any questions regarding list management to: > [email protected] > To listen to the show archives go to link > http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 > Or > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > The Pod Cast address for the Blind Handy Man Show is. > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > Visit The Blind Handy Man Files Page To Review Contributions From Various > List Members At The Following address: > http://www.jaws-users.com/JAWS/handyman/ > > Visit the archives page at the following address > http://www.mail-archive.com/[email protected]/ > > If you would like to join the JAWS Users List, then visit the following > address for more information: > http://www.jaws-users.com/ > For a complete list of email commands pertaining to the Blind Handy Man list > just send a blank message to: > [email protected]! 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