LumberJocks Woodworking Forum banner
  • Please post in our Community Feedback thread for help with the new forum software! If you are having trouble logging in, please Contact Us for assistance.
1 - 17 of 17 Posts

·
Registered
Joined
·
935 Posts
I am setting up a Rockler table, Incra lift with a new PC 7518 router. It is a five speed and I am going to install it with the Incra Clean Sweep dust system but the switch is placed where the router will have the speed switch away from the door to the box.

The speeds are 10k, 13k, 16k, 19k, 21k

Curious what speed is the most likely setting for average size bits or how much any of you change speed on your router. I can get the the switch but it will not be easy to read.

Curious if anyone has a pointer for me.
 

·
Registered
Joined
·
4,199 Posts
If you're only going to use one size bit, the set the appropriate speed, and you're all done. If, however, you're going to be using a mix of small and large bits, you'll need to change speeds to suit the bit. In other words, there's no one answer as to speed: you'll need access to the speed control.
 

·
Registered
Joined
·
9,175 Posts
In other words, there's no one answer as to speed:

Unless you have a fixed speed router :)

The Bosch 1617 has a fixed speed of 25,000rpm.. as does my C-man. I've seen others that even though are variable, only have something like a 19,000-22,000 rpm range or thereabouts (don't remember exactly off hand). I'd set it for the fastest it will go and only worry about it when using really large bits that need it slower. For most work, you want it to be as fast as possible (round overs, bevels, straight bits.. most of which are not really that big).

Cheers,
Brad
 

·
Registered
Joined
·
935 Posts
Discussion Starter · #8 ·
You are right about following the bit speed rating. Looks like I will be able to change it easily enough, just might have to make a not of the speeds from front to back as I will not be able to read it on the router.

Should be ok though.

Thanks, Brian
 

·
Registered
Joined
·
4,199 Posts
Well, I'll be danged. I stand corrected, Brad.

You are absolutely correct. When you said 1617 I immediately thought of variable speed, as I think most people would. I'm a fan of Bosch routers, yet had no idea that anything in the 1617 series was fixed speed. And you're correct; mine is the 1617 EVSPK.

Live and learn, as they say.
 

·
Registered
Joined
·
935 Posts
Discussion Starter · #11 ·
Thanks everyone. I was able to mount the speed switch to the back side and will be able to reach through the Incra cleansweep to adjust. I just have to note the five positions b/c I will not be able to see the lines and numbers. Now that I think about it, the switch will be upside down and it might not be an issue.

On to the next project….
 

·
Registered
Joined
·
3,305 Posts
Thanks everyone. I was able to mount the speed switch to the back side and will be able to reach through the Incra cleansweep to adjust. I just have to note the five positions b/c I will not be able to see the lines and numbers. Now that I think about it, the switch will be upside down and it might not be an issue.

On to the next project….

- BroncoBrian
You can tell by the sound whether you are spinning it fast or slow. Start slow and go up counting the changes each time.

My Bosch is "electronic variable speed" so I simply turn the knob to change the rpm. I run it by ear. :)
 

·
Registered
Joined
·
6,662 Posts
The thing about router speed that most people don't consider it that faster speeds means higher power output from the router. Luckily your router has plenty of power, so that's not an issue for you.
In general the smaller the bit, the faster the speed. Bits with 1/4" or 1/2" cutting diameter can run close to full speed. Large diameter profiling bits and panel raising bits will run slower.
 

·
Registered
Joined
·
659 Posts
Is the slower speed for larger bits a safety issue (might fly apart)?

Or does it have to do with the quality of the cutting?
 

·
Premium Member
Joined
·
21,690 Posts
It's about the speed the cutter is traveling. Router speed is rpms. Small bits travel a short distance to make one revolution, but big panel raising bits travel a much longer distance to make one rev. If that big bit were set to 24,000 rpms, then the cutter would be traveling much, much faster than a 1/4" bit at the same rpm.
 

·
Registered
Joined
·
3,305 Posts
Is the slower speed for larger bits a safety issue (might fly apart)?

Or does it have to do with the quality of the cutting?

- JeffP
When using the big cutter, I slow the Bosch to it's slowest speed and make several passes cutting away a little at a time. Worked just fine for me.
Wood Flooring Floor Toy Space


Wood Rectangle Table Floor Flooring
 

Attachments

1 - 17 of 17 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top