Blade Slippage on Stanley No. 71
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Mooncabbage.
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26 April 2016 at 11:32 am #136723
Hey all!
I’ve finally got around to working on a holder for my diamond plates, and I decided to go the hand tool route, and I noticed that the blade in my router plane (stanley no. 71) tends to ride up in the collar. There is a little slack between the adjustment nut and the blade groove, and the collar only tightens so far. The end result is an uneven surface in the recess, as it cuts deeper when first set and is pushed up over time.
I’m sure I can’t be the first person with this problem, just wondering how others have tackled it? What’s the common fix for this?
26 April 2016 at 12:19 pm #136724Hi Mooncabbage,
I guess you have to look at the obvious first. Are the V grooves clean, and does the stem of the blade fit neatly along its length. Could the stem be bent and not touching along the length of the clamp and rear stay.
In the short term the easiest way to eliminate most of the slippage is to take out the slack in the adjuster before you use the router to cut, this will effectively stop the blade riding up because the adjusting nut will keep it from moving.
Hope this helpsGeoff
26 April 2016 at 2:25 pm #136727[quote quote=136724]Hi Mooncabbage, I guess you have to look at the obvious first. Are the V grooves clean, and does the stem of the blade fit neatly along its length. Could the stem be bent and not touching along the length of the clamp and rear stay. In the short term the easiest way to eliminate most of the slippage is to take out the slack in the adjuster before you use the router to cut, this will effectively stop the blade riding up because the adjusting nut will keep it from moving. Hope this helps
Geoff
[/quote]Yes, the V grooves are clean, the stem fits properly etc. I have been taking the slack out of the adjuster by moving the blade up as I tighten, but I suppose just winding it down would work better. It’s a bit frustrating because a) the manual that originally came with it said to push down on the bit, and b) it makes it much harder to accurately adjust it, when you have to essentially constantly wind it deeper.
I had thought about using a bit of leather in the rear V groove or something, to increase the friction, but not sure it’s going to be solid enough, and would probably be too fiddly a solution.
26 April 2016 at 11:46 pm #136741How about some double sided tape in the V groove and stick some wet and dry paper to it giving a little more for it to hold on to? I haven’t tried it, just a thought!
27 April 2016 at 5:52 am #136750At the moment I am using a small pair of pliers to turn the thumbscrew an extra 1/8th turn. Seems to do the job. Might just be that the thumb screw is too hard to get a decent grip on to tighten up properly.
27 April 2016 at 10:43 am #136753On closer inspection it appears the backlash in the adjustment nut is a far worse culprit than the 5 thou slop in the groove/nut joint thingy. Wish I’d figured that out a pack of brass shim material ago 🙁
Wonder if that’d work to help the collar grip? That seems to be the key to it.
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