verhoevenc Posted March 1, 2006 Report Share Posted March 1, 2006 I was just wondering when a router bit gets so big that it needs slowing down? Like from Myka's neck shaper tutorial it says that those big round overs do. However, I wanna get a 1/2" rabbit bit (total diameter of like 1.5" or something around that) to take a template i have for a semi-hollow and make it 1/2" smaller on ALL sides for a good solidbody size. Will I need to slow down this bit? Even if It's only being used to cut MDF? Chris Quote Link to comment Share on other sites More sharing options...
MiKro Posted March 1, 2006 Report Share Posted March 1, 2006 I was just wondering when a router bit gets so big that it needs slowing down? Like from Myka's neck shaper tutorial it says that those big round overs do. However, I wanna get a 1/2" rabbit bit (total diameter of like 1.5" or something around that) to take a template i have for a semi-hollow and make it 1/2" smaller on ALL sides for a good solidbody size. Will I need to slow down this bit? Even if It's only being used to cut MDF? Chris Chris here's a good rule of thumb for most bits. "Bit Diameter" "Max.Speed" 1" 24,000 11/4" to 2" 18,000 21/4" to 21/2" 16,000 3" to 31/2" 12,000 hope this helps. mike Quote Link to comment Share on other sites More sharing options...
verhoevenc Posted March 1, 2006 Author Report Share Posted March 1, 2006 yeah,.... shoot.... I guess I can't use that bit then... cuase I've got a single speed that goes 25,000 RPM Chris Quote Link to comment Share on other sites More sharing options...
MiKro Posted March 1, 2006 Report Share Posted March 1, 2006 yeah,.... shoot.... I guess I can't use that bit then... cuase I've got a single speed that goes 25,000 RPM Chris What size fixed speed? Woodcraft has a speedcontrol for about $35 that will work if it's a 1hp or larger or maybe 1 1/4hp not sure on the minimum hp rating for the speed control. I've used one on a 1 1/2hp Bosch 1617 fixed speed with no issues. edited to add: Here's the control I was talking about. http://www.woodcraft.com/family.aspx?familyid=3957 Mike Quote Link to comment Share on other sites More sharing options...
verhoevenc Posted March 1, 2006 Author Report Share Posted March 1, 2006 Thats exactly what I have, the 1617. I'm gunna see if my school has a variable speed before I dish out and buy the controler. Chris Quote Link to comment Share on other sites More sharing options...
GuitarGuy Posted March 1, 2006 Report Share Posted March 1, 2006 Heres a way to calculate spindle speed for milling, also aplicable to a router. Keep in mind a lot of it has to do with how fast you cut with the router. Spindle speed Quote Link to comment Share on other sites More sharing options...
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