Tightening the RB track

carlson800

New member
Hi everyone, hope you had a good weekend of woodworking.

I am a new RB user and have a question about the play in the track. I was cutting some sliding dovetails yesterday (the pins) and after clamping the board noticed that there is a little free play in the RB track. IOW the clamped board can tilt a little depending on pressure from the cutter. With this in mind, cutting on the front or back of the board will result in slight differences in the pin profile.

I solved this by putting a little tension on the bottom of the board I was cutting - pulling it gently out from the bottom so that it remained tight against the fence. However, it seems like I need to tighten the play in the track. Has anyone done this, and how?

Thanks!
 

larry.thomson

Moderator
welcome to the forum -- hope we can get you an answer --

i'm assuming you are using the default movable fence and push button assy -- i think i noticed the same sort of play -- the individual track pieces can be tightened up with a set screw on the far left side of the track pieces -- i posted a thread -- adjustment screw -- that solved it for me -- i also believe it may also depend on how wide the workpiece is -- IMHO -- the wider (> 6" ??) , the harder it will be for that system to hold the piece tight -- wider pieces may need some clamping in the middle -- one reason i initially cut all my dovetails using the mortice table so i could add all the clamping i thought the situation needed -- emphasis on 'i thought' -- my first 2 posts to the forum outlined the mortice table setup --

i'll leave it at that -- please holler back if i have missed the target all together

larry
 

larry.thomson

Moderator
your post got me thinking -- always dangerous -- if you need to add some clamping to the board -- i.e. sort of like you did by holding the board -- you could add a knuckle clamp on the left side for a wider board --

clamp 01.jpgclamp 02.jpgclamp 03.jpg

as long as the 'foot stand' piece on the left of the clamp is within the moving bar -- it won't inhibit the travel -- and the board was very secure --

larry
 

carlson800

New member
Hi Larry and thanks for jumping in. Pretty much right after I wrote my post I found one that was posted recently about the same issue. I just removed the rulers and tightened the screws and it improved things 100%. I like the idea of the knuckle clamp and will do that too on my next drawer.

Probably wouldn't hurt to have sharp bits too ;-)

Thanks!
 
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