WoodCentral Forums

Est. 1998 — 27 years of woodworking knowledge

Track Saw rail square question

Posts

Track Saw rail square question

#1

Track Saw rail square question

Barry Irby

I have seen a number of versions of "squares" to attach to a track saw rail. Festool calls theirs an Insta Rail square and sells it for $149. I took a piece of 3/4" plywood and drilled two holes for bolts and slid the heads into the T slot in the bottom of the track. Carefully checked it for square. Cut off the end of an 18" wide white oak panel. Off about 1/32" over 18". Adjusted it and tried again. As near perfect as I could measure. Cut the other end of the same panel and it's off 1/32" again. What's going on? The saw is snug on the rail. Blade is fresh and cutting cleanly. Is the blade wandering?

I don't want to buy a Insta Square because I don't need it often and can't imagine how it could work any better and I don't want to spend the money. These panels are seven feet long and weigh 55 lbs. Really thought this would be the easy way to cut them. Does 1/32" matter?

Maybe I should stack the top and bottom and cut them at the same time and let it be over.

Re: Track Saw rail square question

#2

Does 1/32" matter?

Jim Matthews

If your joining panels, straighg and square matters.

If it's the end of panels, and you can plane to square - perhaps not.

It is possible that the guide isn't registered tightly to the track.

Does the track have a center "valley" or channel?

Affix a piece of hardwood that *just* slides through the channel and glue that to your guide.

****

If it's runout in the saw arbor, your at the limit of precision.


img

Re: Track Saw rail square question

#3

Re: Track Saw rail square question

John in NM

Are the little plastic guides on the bottom of the saw adjusted for a snug fit on the guide? That's all I can figure.

I've never seen this problem. I've seen dull carbide blades deflect, but I wouldn't expect that in this case, and you said the blade was new. I've also never seen a blade deflect that much, more like half that measurement (chop saw on thick piece of walnut).

Re: Track Saw rail square question

#4

Re: Track Saw rail square question

William Duffield

Seneca Woodworking and Woodpeckers both sell parallel guide systems for Festool tracksaws, and they are both much more expensive than your referenced Festool price. I have also seen, a long time ago, how to build your own somewhere on the FOG (Festool Owners Group).

Re: Track Saw rail square question

#5

I ahve been buying Festool stuff at estate sales

Barry Irby

The bug bit me. I wanted a Domino for a long time but couldn't get past the sticker shock.

Now I have two track saws, a 55 and a 75. And 6 or 7 pieces of track. Got some of the track for next to nothing from someone who did not know what they had. (It's my favorite)

I looked at various rail square attachments, but again couldn't stomach the prices. So I carefully cut a piece of plywood and made my own. It looks crude because it's just a rectangle without all the fancy cutouts and angles, but the critical part is I now have it tuned up to make square cuts. My idea was to install it with two bolts into the slot in the bottom of the track and then remove and reinstall as needed, but since the tuning turned out to be a bit tedious I think I will just leave it alone and dedicate this piece of track to square cuts. I may convince myself to make a fancier version. Or not.

Thanks for the help

Anybody got plans for wheel on a folded up MFT? That thing is too heavy for an old man to be humping around. Not exactly easily portable.

Re: Track Saw rail square question

#6

Re: I ahve been buying Festool stuff at estate sal

William Duffield

This idea might help with the MFT mobility.

http://www.woodcentral.com/woodworking/forum/archives_handtools.pl/bid/3001/md/read/id/469241/sbj/mobility-in-a-moxon/

👍 This page answered my questions

Your vote helps other woodworkers quickly find the answers and techniques that actually work in the shop.