Too true Les! Being as we're not all using the same machines it does have a big impact on how stuff 'works'.
Jarrett Johnson ----- Original Message ----- From: Les Newell <[email protected]> Date: Thursday, April 28, 2011 4:21 pm Subject: Re: [Emc-users] Router Cutter v Milling Cutter > It does depend on what you are cutting. Most of the work I do on > that > machine is 12mm and 18mm MDF. Generally I use two passes, one deep > and > one shallow. If I use two even passes or one full depth pass I > tend to > get problems with the parts moving as the vacuum bed on that > machine > isn't particularly powerful. > > As is so often the case there are few hard and fast rules. What > works > great for one person doesn't work so well for someone else. > > Les > > On 28/04/11 23:01, H & J Johnson wrote: > > Les, I've run it faster w/ a lighter cut but I found that my > best material removal rate vs accuracy was more in the 1/2-3/4" at > the 100ipm. > > I used to use solidcarbide spiral type cutters, as well as > compression cutters etc. But I've since gone back to straight > > cutters where possible [for cutting wood or wood products]. The > finish quality on the spiral cutters just wasn't up to snuff > > w/ the standard router bit type cutters [straight edges].With > the spiral type cutters the chance of chipping the top edge > > was alot higher [and random], even when using compression > cutters, which were better. The issue I had w/ compression > > cutters was that I wasn't always just routing to a net shape but > instead slotting or cutting a recess in the face etc. This would > > only use the bottom [upcut] part of the bit and still allow the > chipping issue. I'm not sure why this is but I now rarely have > edge chipping or > > edges that need dressing or touch up [I attribute it to the sqr > cutting edge not being an 'up or down' shear cutting action]. > > > > W/ the sqr bits almost 100% of the stuff is usable straight off > the table. The chipping was my > > main concern [ie;13 ply Baltic Birch] but once I went back to > the sqr cutters that has disappeared as an 'issue'. > > > > I certainly don't mind as the sqr router bits are a fair bit > less money than the fancy spiral and compression cutting bits. The > only> negative is that you can't plung w/ them, but a 15deg ramp > is no problem. A small price to pay for the job they do [just my > > opinon]. > > > > I buy alot of my tools from Toolstoday.com > > > > > > Jarrett Johnson > > > ------------------------------------------------------------------- > ----------- > WhatsUp Gold - Download Free Network Management Software > The most intuitive, comprehensive, and cost-effective network > management toolset available today. Delivers lowest initial > acquisition cost and overall TCO of any competing solution. > http://p.sf.net/sfu/whatsupgold-sd > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
