LinkBack URL
About LinkBacks
Readjust your mount to make it right.
The way to check from a fixed mount is to raise and lower the Z axis and get the spot to remain stationary.
Greg
OK, I started of using a solid mount next to the router for my laser center finder. Then I realized since I had to adjust the router mounts to make the router perpendicular to the table that that laser was now at a slight angle, which makes it way off when I'm high up on the Z axis. So I went back to chucking it up in the router and doing that way, PITA. Then I noticed that Porter Cable's Collets have .003 run-out...not good. So I got to thinking if I setup the laser in the solid mount again but always space it 2" away from the work when aligning it should be good right? Because I'm calculating for the angle of the laser by always having it spaced at 2" from the work piece. I would of course calibrate my offset for this new measurement, but after that I should be kosher right? Input is appreciated. Luckily for all of you fighting to reply to this awesome post the batteries are almost dead in my laser center finder and it's too cold in the shop, so when you reply it will be before I test my theory....LOL
OH BTW the solid mount is more appealing because I can compensate for the runout by calibrating the offset for the center of the router thereby getting rid of the error in runout. I know I won't be elliminating it but I want to find the center of the spindle. Before I just rotated the laser in the router making sure the laser dot was moving equodistant to either side of my center mark.
Readjust your mount to make it right.
The way to check from a fixed mount is to raise and lower the Z axis and get the spot to remain stationary.
Greg
Yeah, but I would have to make a new router mount that is adjustable. Anyway, I think I might be going with a spindle made either from a Taig mill head or a Harbor Freight Mini mill head, that way I'd have r8 which my bridgeport is so I all ready have tooling.
Sorry I thought you were talking about the laser mount.
Greg
Sorry I guess I didn't clarify. I put a hole in my router mounts to hold the laser. So when I had to readjust my mounts to make the router perpendicular to the table it through off the laser. I'm working on getting one of those camera cross hairs so I can really see the actual line or edge of what I'm trying to calibrate. I make guitars so having to remount a neck or body is sometimes the case.
Parallax error problems. Yes you could do the offset calculation... or... if you take 2 lasers with the beams spread in lines (cylindrical lens or mirror) and mount one in line with the X axis, and the other in line with the Y axis such that they cross each other directly under the spindle center you will have a crosshair that movement in the Z axis will not move the crossover point. The lines will move along their length, but if long enough they will still cross under the spindle center.
Just a thought.
Steve
Posting Permissions
| | |
