Re: Magnetic Tape on 520 Front Rails
Posted: Fri May 07, 2021 8:57 am
I looked at the Aussy site and they don't show the 1.5mm just 1.6mm and thicker.
Jack
Jack
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Russ, David, John,chapmanruss wrote: ↑Fri May 07, 2021 1:58 pm I have to agree with what David and John have said above. I have a set of 520/M7 tables with the magnetic strips and a set without. Mostly it tells me which set of tables belongs to which Shopsmith, the Mark V 520 or the Mark 7. As for using it I still rely on a steel ruler for checking the cut width. The ruler for the magnetic strip shown in the picture in my previous post usually sits aligned on the magnetic strip and is useful for a rough setting of the fence on the main table followed by using a ruler between the blade and fence to check it for accuracy. My Table saw, which I haven't use in years, has a built in ruler but I have always checked cut widths separately to confirm. Part of that measure twice, cut once rule of woodworking.
You would have the same issue with a DRO as there is with the SS rulers. If you change blades or arbors or move the quill the DRO calibration is out the window.RFGuy wrote: ↑Fri May 07, 2021 2:23 pmRuss, David, John,chapmanruss wrote: ↑Fri May 07, 2021 1:58 pm I have to agree with what David and John have said above. I have a set of 520/M7 tables with the magnetic strips and a set without. Mostly it tells me which set of tables belongs to which Shopsmith, the Mark V 520 or the Mark 7. As for using it I still rely on a steel ruler for checking the cut width. The ruler for the magnetic strip shown in the picture in my previous post usually sits aligned on the magnetic strip and is useful for a rough setting of the fence on the main table followed by using a ruler between the blade and fence to check it for accuracy. My Table saw, which I haven't use in years, has a built in ruler but I have always checked cut widths separately to confirm. Part of that measure twice, cut once rule of woodworking.
You guys are probably ahead of the curve for me on this and I do appreciate the feedback. This may be a fools errand for me to try to make mine work.
So, is there anyone that has been able to use the 520 rulers for ripping...I mean other than for making birdhouses? So I had two thoughts on how I "might" use the Shopsmith rulers, but I may be deluding myself. The first case is the occasional rip where exact width is not needed. This wouldn't apply to projects like furniture that I build where I need more precision, but rather the case for outdoor items that I sometimes work on, e.g. fencing, flower pots, etc. The second thought that I had was using the Shopsmith ruler as a coarse measurement for setting up a DRO where it is the fine measurement. I still haven't settled on a suitable means for attaching one, yet, but the idea is that if I could then the Shopsmith ruler would be a sight guide before switching over to the DRO to finalize the rip setup. This may be a pipe dream, but hey it is fun to have dreams right?
John,
Thanks Russ. Yeah, I never took the time to see if I could use my 520 rulers because I noticed how easily they were bumped or knocked off on mine. Dusty has indicated he has had some success using his, so I think I will try to order some stronger magnet tape and give it a go again. I know it has to be re-calibrated whenever a changeover is performed, quill moved, etc., etc. Maybe I am oversimplifying it, but I figured calibration could be easy with a 1-2-3 block placed between the fence and the sawblade then move the ruler to the appropriate width to match. Maybe insufficient for very precise work, but perhaps okay for most rips? Who knows...once I get it working, I still may not like it as others have alluded to here on this thread.chapmanruss wrote: ↑Fri May 07, 2021 7:15 pm The best part of the discussions here are seeing different perspectives on how things are accomplished.
I have a Wixey DRO on my 52" PM200 cabinet table saw. It was a cool tool, but I almost never use it. It is dead on accurate when calibrated. I use a steel rule. On the other hand I have a Wixey DRO height gauge adapted to my SS pro planer. It is dead on accurate and I use it all the time.chapmanruss wrote: ↑Fri May 07, 2021 7:15 pm The best part of the discussions here are seeing different perspectives on how things are accomplished.