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Post by My 2 pennies on Apr 26, 2017 16:06:39 GMT -5
Hi every one
I connected two 1.6m Mafell rails and when I ran the saw I could feel the saw going over the connected joint is that normal? Shouldn't it be a seemless connection like running the saw on a single rail.
The splinter guard also looked uneven ?
What is the correct way to join the rails? I mean are you suppose to leave a gap or but them together tight ? And how much do you turn the dials and in which direction?
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Post by jonathan on Apr 26, 2017 16:22:29 GMT -5
I always leave a small 1-2mm gap between my rails in case they aren't cut square from the factory or something like dirt or sawdust gets between them preventing them to line up... Haven't ever had my rails not be straight when joining. The connectors tighten by turning a cam lock, shouldn't matter which way you turn it.
Maybe there was some dirt or dust on your setup?
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Post by My 2 pennies on Apr 26, 2017 17:01:32 GMT -5
Thanks , when you run your saw over the connected part does it be smooth has when you run the saw on a unjointed rail? Or Can you feel when you go over the connected joint ?
Maybe splinter guard was uneven on the edge of the rail , but how could that be i wounder. It did seem clean but I will have a another look and see again.
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Post by kraftt on Apr 26, 2017 18:41:40 GMT -5
There's .25mm / .010 clearance between saw base and seated rail connector (if base is not overly worn).
If you are dragging when you pass over connector (that's not connecting to another rail) inspect it for any burrs etc.
Spraying with a drylube teflon etc will coat it in a white frost and you can slide both saw and conn. back and forth to reveal any high spots.
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Post by My 2 pennies on Apr 27, 2017 5:31:24 GMT -5
Every thing is brandnew I think the plastic clips the edges where the two rails meet?
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Post by holmz on Apr 27, 2017 5:47:00 GMT -5
One should be able to determine whether the saw is needing to move up, left or right. If you go the other way does it also hiccup at the joint? I would probably take a fine file and bit a 1/4-mm radius or chamfer on the ends to facilitate it gliding.
(In theory I would, but I have not had to file anything other than burrs on the rail I cut with the jigsaw for the MFT)
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Post by mafelluser on May 1, 2017 17:53:39 GMT -5
Hi every one I connected two 1.6m Mafell rails and when I ran the saw I could feel the saw going over the connected joint is that normal? Every thing is brandnew Same here, on both counts.
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Post by kraftt on May 1, 2017 21:59:52 GMT -5
ok, I think you guys might be talking about height differences between joined (gapped) rail ends because of either lateral shift between the two planes that the connector can’t overcome to the sides - and/or/combo - the amount of bulge of red rubber grip strips being unequal underneath because they were pulled thinner at ends etc.
In either case - join two rails, and very slowly push saw over joint and then drag is back just as slowly listening / feeling for any slight impact. You should discover that somewhere on the saw base, I would guess the front / back leading edge, it ‘bumps’. To verify height differences between outside flanges of rails try shimming one outside end or other to raise it and run saw over again. If any bump is more pronounced in one direction (without shimming) and not the other this would also indicate a height difference between rails (towards the edges away from connector). Seems something like this will change too with how flat the substrate is. Most likely this wants to happen everywhere along the rail but because it’s a homogenous piece and not split these potential differences in grip height & other stresses are evened out.
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