bad router?

Dave38

Dave38

theemperorhasnoclotheson
Silver Member
I would like some opinions as to what could be wrong with this setup. I get some vibration with a normal bit, but when I put on a wing cutter, it sounds like it's going to blow apart. I put a rubber pad under it to absorb some, it helped a little. I tightened all the gibbs and nothing is loose on the lathe. The router is a 5 month old Ridgid and I've had this since then. I'm leaning towards the router being a P.O.S. Any thoughts?
Dave
http://i224.photobucket.com/albums/dd251/btheball2001/cutter1.jpg
http://i224.photobucket.com/albums/dd251/btheball2001/cutter2.jpg
http://i224.photobucket.com/albums/dd251/btheball2001/cutter3.jpg
http://i224.photobucket.com/albums/dd251/btheball2001/cutter4.jpg
 
I see you have a variable speed router/trimmer. Does it sound the same at all speeds or just lower ones? If it goes away you need to make your holder more rigid. Sounds to me like too much vibration.
 
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Dave38 said:
I would like some opinions as to what could be wrong with this setup. I get some vibration with a normal bit, but when I put on a wing cutter, it sounds like it's going to blow apart. I put a rubber pad under it to absorb some, it helped a little. I tightened all the gibbs and nothing is loose on the lathe. The router is a 5 month old Ridgid and I've had this since then. I'm leaning towards the router being a P.O.S. Any thoughts?
Dave
http://i224.photobucket.com/albums/dd251/btheball2001/cutter1.jpg
http://i224.photobucket.com/albums/dd251/btheball2001/cutter2.jpg
http://i224.photobucket.com/albums/dd251/btheball2001/cutter3.jpg
http://i224.photobucket.com/albums/dd251/btheball2001/cutter4.jpg
Click to expand...


If I were a gamblin man...........bearings or bear mounts inside router.
Chuck up a .250 pin gage and put an indicator on it. Don't turn router on but just take your finger and move the bottom of the pin around with some light and medium pressure.....see what happens.
Rigid is not a name associated with quality as far as precision tools go.
 
I have tried it with slower speeds and also the faster ones, had the same results. I had a used Porter Cable that I had tried originally, that had a sloppy bearing and it didn't make half the noise/vibration that this one does. I have also tried a high quality wing cutter, to rule out an ofbalanced or off center arbor hole. Didn't help. It vibrates so much, I have to use a spring clamp to stop the cross slide handle from turning by itself and cutting to deep. Thanks for the input
Dave B
 
Dave38 said:
I have tried it with slower speeds and also the faster ones, had the same results. I had a used Porter Cable that I had tried originally, that had a sloppy bearing and it didn't make half the noise/vibration that this one does. I have also tried a high quality wing cutter, to rule out an ofbalanced or off center arbor hole. Didn't help. It vibrates so much, I have to use a spring clamp to stop the cross slide handle from turning by itself and cutting to deep. Thanks for the input
Dave B
Click to expand...

As fast as routers crank, everything needs to run true and in balance or it will be dangerous and self destruct in a short time with no precision while it was in operation. Since you have ruled out the tooling, it is now narrowed down to the collet, armature or bearings. Take the router back (if still in warranty) and try again. The mount can also affect the amount of vibrations that are transferred. The router should be mounted as close to the center height of the work as possible. You don't want it on the end of a long bar where vibrations can be amplified. It's not good to use rubber or anything else that is flexible as this allows some deflection. It is best to mount the router to something that dampens vibrations at the same time is rigid. A piece cast iron comes to mind.

Dick
 
Bad router

I'm not to crazy about how much router hangs out over the plate, you are depending on the router base for alot of support. I bet if you grab the top of the router, you can get it to move with out a lot of force. Add in suspect router,bearing, or collet and stand by for heavy seas. The porter cable probably had better balance and a stronger base. But that's just MHO. I definetly would consider getting some thing besides pot metal under the router.
 
The std Porter cable used in cue making has a more friendly mount

It makes for a very ridgid mount. Your use of a couple screws and all on one end is prone to oscillate. You may try making a better mounting plate, one that is massive and allows all the bottom of the router plate to screw onto it. I think that is most of your problem. Yes, your use of a right angle test plate is ridgid, but it is lost when you adapted the router. The Porter Cable needs only one screw but the mount is parrallel to the arbor so dampens vibration very efficiently.
 
Man, that is one scary mount. The fact that you've only got the 2 small screws on the back of the flange holding that 'screamin demon' is causing you more problem than you realize. Eventually that flange will break from the vibration and the shxt's going to hit the fan. Well, the upside is that you've got the 2 unused mounting holes to use then. I need to learn how to upload pics to this site so I can help this man before it's too late.
 
Please, I'm serious. I need to know how to post pics here. I'll be good, I promise.
 
proddetail.asp

Here's an idea or just get one.
http://www.k2cnc.com/shop/proddetail.asp?prod=RM-PC7310-Trimmer&cat=31
 
Dave38 said:
I would like some opinions as to what could be wrong with this setup. I get some vibration with a normal bit, but when I put on a wing cutter, it sounds like it's going to blow apart. I put a rubber pad under it to absorb some, it helped a little. I tightened all the gibbs and nothing is loose on the lathe. The router is a 5 month old Ridgid and I've had this since then. I'm leaning towards the router being a P.O.S. Any thoughts?
Dave
http://i224.photobucket.com/albums/dd251/btheball2001/cutter1.jpg
http://i224.photobucket.com/albums/dd251/btheball2001/cutter2.jpg
http://i224.photobucket.com/albums/dd251/btheball2001/cutter3.jpg
http://i224.photobucket.com/albums/dd251/btheball2001/cutter4.jpg
Click to expand...


How fast is the lathe spinning when you've got the router running?
 
Dave38 said:
I have tried it with slower speeds and also the faster ones, had the same results. I had a used Porter Cable that I had tried originally, that had a sloppy bearing and it didn't make half the noise/vibration that this one does. I have also tried a high quality wing cutter, to rule out an ofbalanced or off center arbor hole. Didn't help. It vibrates so much, I have to use a spring clamp to stop the cross slide handle from turning by itself and cutting to deep. Thanks for the input
Dave B
Click to expand...


when you say say you got the same results you lost me.

1. If its a bad bearing the noise will and should change with speed and load (the amont of pressure put on the bearing).
2. Any and all vibration (out of balance or out of round) are all so effected by speed.
3. You said the rubber helped no it didn't you add an insulator to absorb the vibration.

YOU REALLY DO NEED TAKE THESE GUYS ADVISE AND REDESIGN THAT MOUNT. The bigger heavier and more solid it is the better it will be for saftey and vibration issues.
 
I too think that mount is part of the issue. It will certainly flex given that the base is less than 1/2 supported. Sorry I do not have a better suggestion but it sounds like KJ is getting ready to show us one.

Dave
 
KJ Cues said:
Please, I'm serious. I need to know how to post pics here. I'll be good, I promise.
Click to expand...

Frist thing you do is upload your photos to a photo hosting site, I use photobucket it's free:

http://photobucket.com/?link=topmenu

Now write your post and when you want to insert a photo go and copy the IMG Code under the photo you want to insert and paste it into your post and your done.

Hit Preview Post before you submit to make sure everything is the way you want it.

That's all there is to it.

Paul
 
Thanks for all the honest opinions guys, if you think this mount is scarey, you should've seen the one I devised before this one:eek: :eek:
I went that distance from the base due to the size of a wing cutter.
The rubber was only a test, didn't really help much. The metal under the router is 1/4" aluminum, I think 6061 alloy? It was all I had on hand. Speaking of hand, I am currently short one hand right now due to carpal tunnel surgury this past Monday, so I can't implement many changes right now. This should allow KJ time to take 'picture posting 101':D
I will be going back to Home Depot and see about returning the Ridgid and getting another Porter Cable. One reason is clearance from the bottom of the router to the top of the 1.5" square wood. with the Ridgid, the wood was hitting the bottom of the mounting flange, that's why there is a spacer in there.
Thanks again,
Dave
 
I have a large block of canvas phenolic, I mean large! 3" x 6" x 12" would that be a good material to carve a mount out of?
 
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