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Sorry for asking another question... but we've been having major problems with our morso blades and are wondering if others have experienced the same. I spoke with a former colleague recently and it turns out they have exactly the same problem and have had to send 5 sets of blades (!) away to get this sorted and their framer is still unhappy. So thinking initially that the problem was caused by us, maybe not fixing the blades properly onto the morso, I am now wondering if the problem could actually have arisen from the sharpening process.
Basically, when we cut frames, the inside of the joint opens up slightly. So you see an upside down V. In order to minimize this to make it workable we currently have to pull the moulding quite substantially inwards in the underpinner to close this gap. Clearly this is bad practice! And we're despairing...
Has anyone here had this problem? In case it really is us doing something wrong with fitting the blades onto the morso, what are the most important things you check when fitting? Any tricks anyone can share would be greatly appreciated. Honestly, we're pulling our hairs out!
Hi Anna
Sounds to me like you need to adjust the left hand fence on the morso to get a perfect 45 degree cut. Problem is I'm not sure which way you should move it! From your description of the problem I think the fence needs moving towards the operator slightly, I adjusted mine and it helped a lot especially with hardwood but trouble is it was a long time ago so I can’t remember which way I moved it! I'm sure some of the other more experienced framers on here will be able to help. Good luck
Peter
I have had this problem myself, as my morso is almost in a 'coridor' and does get knocked from time to time. As Peter says, the best way is to adjust the left hand side fence towards the operator by just a touch, as 1mm on the fence can be a 3mm gap in the underpinner..... My old trusted way of re-calibration is to use a length of the cheapest moulding you have off the shelf, but if possible the front face be at least an inch. Do the minimal morso adjustment, make the frame as usual, and then measure the diagonals with a decent tape measure - they should both be the same, if they aren't, adjust as required. I have found before that the loss of accuracy wasn't the left fence, but actually the right..... trial & error is the best way to rectify this. if you have an issue, break down your frame, adjust, and re-cut a smaller frame & measure again. Sorry for the long story, but its one of those things that's hard to describe but easy to do.
To calibrate your fences get a straight edge (a sturdy metal thing, not wood) slacken both fences and place the straight edge so that at least 50% of it runs along the measuring arm. Butt the fences up to the rest of it so that it slides smoothly along them and does not either knock in to the measuring arm or move even a fraction away from it.
Tighten the fences and do that check again.
In an ideal world, that would be that, but that rarely is that, further adjsutment will probably be required, but it won't be much and should always be done with the left fence.
Get a wide flat batten, or use a wide flat moulding, but place it face down (this takes the rebate supports out of the equation). Make the batten/moulding as wide as you can get, preferably the maximum the machine will cut, and make a small frame, say 8x8".
Hopefully it'll be perfect, but if not then move the left fence away from the error - i.e. If the error's on the front then move the left fence back a touch and vice-versa.
Break the frame up and make a smaller one, say 7x7" - rinse and repeat until perfect.
Ok thanks very much everyone. Sounds to me that you all think the issue is indeed the morso rather than the blades... We'll try the suggested remedies. Fingers crossed!
