There's a whole new problem, large bits require slower speeds. If your router does not have speed control, it's not safe to use large bits. Both the Bosch 1617EVS and Dewalt 618 have variable speed and claim to be 2.25 hp.
Two things come to mind on your router. There should be no rocking of the router with it in the locked position. The lock might be loose. The lock can be adjusted. Hold the handle and remove the philips screw on the handle. Keep your hand on the lever and with a 1/8 allen wrench turn counter-clockwise about a 1/2 turn. Check and see if this improves the lock and repeat till satisfied. There are two bushing that could wear out. They can be replaced. http://www.ereplacementparts.com/porter-cable-7539-type-plunge-router-parts-c-129_1672_12319.html see part number 114 (Not a recommendation to purchase from this source, only for reference). I'm assuming there is no wear on the columns. The good news about the split nut is it can improved by removing small portions of material from the bottom as needed. The screw will wear a deeper hole into the threaded portion of the split nut. So far I've been able to save several split nuts using this method. The key is prevention. If you have note deburred your leadscrew with a file and sandpaper and some oil, now is a good time to do so. It's much easier to do with a motor :-) When the day comes that Legacy no longer sells the split nuts, I have the tooling to create them. -Tim ----- Original Message ----- From: "Dexter Bland" <dexterbl...@gmail.com> To: "Legacy Ornamental Mills" <legacy-ornamental-mills@googlegroups.com> Sent: Friday, July 13, 2012 1:29 PM Subject: Re: Motorized router lifter The router movement side to side is greatest when plunging. You can get the carriage to move on the side opposite of the split nut, but very little. If I was to create a lock on that side, that would eliminate that smaller problem. The biggest issue is trying to plunge the router without it wiggling on the way down. It moves side to side about 1/16 of an inch. Once the lock is engaged, it can move only slightly. My comment about the split nut was in response to comments others have made in past postings about wearing out the split nut. I don’t really have a lot of friction issues like I have seen Curt comment on with his mill. I have recently added a x-drive motor and am concerned about wearing out my split nut which is a part you can’t get down at the hardware store. The smaller routers are not designed for the larger cutters. One indication is the lack of ability to change the speed on the router. I currently don’t turn or make large items, but have future ambitions of larger stuff as my abilities improve and dream up other things to make. Unless other 3.5” diameter routers are built more robust than the 1.75hp PC that I have, I have reservations about downgrading to a smaller router. Dexter -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. To unsubscribe from this group, send email to legacy-ornamental-mills+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/legacy-ornamental-mills?hl=en. -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. To unsubscribe from this group, send email to legacy-ornamental-mills+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/legacy-ornamental-mills?hl=en.
