Even though my blog has remained in a near-dormant state for a good week now, I have spent the past few weekends casually working on a fruit bowl with an octagonal design and theme. It’s frustrating enough having such little time to work on things like this but, when things just don’t go quite as well as you had hoped they would, it makes you feel like giving up, doesn’t it?
It may looks as though I have made good progress on this bowl in the photo above. Look a little closer though and you’ll see that I, quite literally, can’t quite get it together on this one…
I’ve double-checked and carefully rest my saw blade three times now and yet, for some reason, these compound mitres aren’t coming out at a perfect 22..5°… Or, perhaps they are and there’s another obstacle preventing two of these joints from pulling up neatly once they’re wrapped up in the ratchet straps. It’s not always the same components, either. There’s a discrepancy somewhere but, I’m just not sure of where or how to find it.
To cut these mitres on such small components (‘segments’, only 105mm at their longest), I came up with a simple work-holding jig in the form of a sled designed to fit in to the only (left-hand) slot on my Elektra Beckum PK200 table saw. I do feel that the jig is quite reliable and, with the stop block in place, I’m confident in saying that each of the eight segments I’ve cut is identical, thanks to this… Meaning that they’re each now a good 2mm under-size, as I’ve re-cut these joints twice now and, they still won’t all pull together neatly.
This is the first time where I’ve attempted to assemble any shape with more than four-sides. I’m sure that the addition of the ‘slant’ or slope to the bowl’s outer edges only helps to complicate matters. Perhaps I should instead attempt to build a simple 90° octagon with vertical guides, if only to affirm my confidence in my jig-making abilities on this project.
If the “other” angle is out (erm, the “taper“…?!), could it be responsible for these joints not going together correctly, even if the ends are all mitred at a precise 22.5°? Or, perhaps I should invest in a Bevel Box…!
I have already begun documenting this one in video format. If I can find a way around this inconvenience then, I would like to finish the finish the short series off.
Thanks for reading.