The Shop > Tools
Can runout or deflection cause a router to kickback?
Jasonb:
If it is kicking the moment you touch the work it sounds to me that you are not using a "lead on pin" This is a small pin that you run the work against as it is fed into the cutter to stop the work being kicked the other way. Most router table inserts will have a threaded hole or two for the pin to screw into.
What happens is as the corner of the work touches the cutter it will want to climb cut across the end until you have the bearing in contact with the side being cut, the pin gives you a fulcrum to steady the work against.
Jason
Who makes his living turning wood into sawdust.
mexican jon:
--- Quote from: RichardDepetris on February 04, 2017, 02:05:43 PM ---very loud and makes rattling clanking sound as it spins down. I assumed it was because routers are supposed to be noisy.
--- End quote ---
I would also say 100% that your bearing are shot :bang:
RichardDepetris:
--- Quote from: Jasonb on February 04, 2017, 03:27:27 PM ---If it is kicking the moment you touch the work it sounds to me that you are not using a "lead on pin"
Jason
Who makes his living turning wood into sawdust.
--- End quote ---
Yup, tried it with this too. No difference.
Sent from my iPad using Tapatalk
sparky961:
Add another vote for the bearings, but that may not be your only issue.
I stopped on "routing left to right" and was trying to figure out if you were (in machining terms) climb or conventional cutting. I have had much less success with climb cutting and if there's a safe way to do it I haven't yet learned it. Your description, however, could be interpreted either way so it's hard to say if this is part of the problem.
A quick video of your process and a seasoned woodworker (not myself) could probably point out the issue very quickly.
RichardDepetris:
--- Quote from: sparky961 on February 04, 2017, 05:17:07 PM ---I stopped on "routing left to right" and was trying to figure out if you were (in machining terms) climb or conventional cutting. I have had much less success with climb cutting and if there's a safe way to do it I haven't yet learned it. Your description, however, could be interpreted either way so it's hard to say if this is part of the problem.
--- End quote ---
I said "right to left" which is the conventional direction on a routing table, since the bit is facing up. I also tried climb cutting as well. They were both tried using a spiral and two flute bit. The amount of material to trim was about 1/16", which is hardly a lot to bite and even less when it is limited by bearings at the top and bottom. Regardless, the bit throws the work piece the moment the bit touches it.
I am siding with the bearings as the culprit. Perhaps my eyes fooled me, but at one point a saw a significant wobble of the bit shortly after the work piece was kicked away. Strange rattling noises can be heard as the router spinned down to a stop.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version