Trevanion
Greatest Of All Time
guineafowl21":3t062ln6 said:1. A while back you said something about an ‘interesting design that you turn the fence around to work on the backside with more table depth and without the sliding table in the way’. What did you mean by this?
If you watch the Charnwood video on the W030 moulder at about the 1:25 mark it shows the fence turned around on the table so you've got more work area for the timber to run on, if you were to try and straight mould on the sliding table side I don't think you would have much of the table for the workpiece to run on.
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guineafowl21":3t062ln6 said:2. For end-profiling, or tenoning, should I attach a spelch block where the black plastic piece is on the sliding table fence, or just have a piece of scrap behind the full length of the wood?
If you look at the above video, Charnwood seem to have used some kind of block with a notch cut out of it bolted to the backside of the tenoning fence as a spelch block. I personally would have a couple of t-slot nuts to fit in slots in the front of the aluminium fence and bolt a piece of timber to it the full length of the fence, or maybe two smaller pieces with a gap between them to save on timber.
guineafowl21":3t062ln6 said:3. What is that black plastic piece for? It looks like support for overcutting on the end.
Honestly? not a clue! :lol:
guineafowl21":3t062ln6 said:4. To set up for tenoning with two circular saw blades (or a rebate block), would I slide an upright square up to the blades, and mark that on the table as the cheek depth, then run that line down the table and clamp a stop-block there for repeated cuts? There is a rear flip stop fitted, but only for shorter pieces.
For general furniture and agricultural stuff (chicken runs etc) I can’t see myself needing tenons longer than 75mm. Usually well under, as I tend to do blind mortices now.
That's the basic gist of it, another perhaps simpler way to do it would be to clamp a piece in your sliding table to that it just kisses the very apex of the cut on the blades, draw the sliding table back and put a 75mm or whatever sized spacer on the end of the workpiece and clamp a stop to the table butting up to the end of the spacer, remove the spacer and push the timber up to the stop and you should have an exact depth cut.
Just bear in mind, if you want to do 75mm tenons you'll need quite large blades, 200mm minimum otherwise the end of the tenon will bottom out against the shaft (200mm subtract 50mm for shaft spacer diameter divided by two = 75mm). It'll be quite difficult to guard such a large diameter properly but not impossible, I'd probably go for a pair of 250mm blades like the CMT 286 ripping blades with 16 teeth because they're inexpensive, then build a box to surround the blades as best as possible and to extract the dust effectively and I would run the machine at 4500RPM while doing the job, taking my time to push the timber through.