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| Rounding bar ends - how? |
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| cidrontmg:
Done. Thereīs a workpiece in it for testing (a rocker arm), and it works just fine. I made a small ali "table" whereupon the jig is mounted with a M3 screw, and which can be mounted to the mill vise. The workpiece is held with six M3 screws, so it doesnīt have to be symmetrical, practically any shape that will fit inside the jig (17 mm wide) can be held tight enough. Thanks again Joe / 75 Plus! :wave: I will have use for this. |
| Rob.Wilson:
Nice one Joe :clap: :clap: :clap: :thumbup: :thumbup: :thumbup: :smart: :smart: :smart: Looking good cidrontmg :dremel: :dremel: :dremel: :dremel: :dremel: Whats the rocker arm for ? Cheers Rob |
| 75Plus:
I had not considered the "Free Form" aspect of the holder. Yours is much improved over the sketch I made. I do have one small suggestion. To lessen the amount of tension required to hold odd shaped workpieces you might add a back stop to support the back end. Just an idea I sketched. The two pins would drop into matching holes in the holding fixture. The stop screw length would be determined by the size of the fixture. Joe |
| cidrontmg:
Another excellent modification from Joe / 75Plus: :clap: :clap: :clap: I fixed the backstop with 2 brass screws. It can stay there "forever", it might get lost if itīs a loose part. If ever I need a round end to a bar longer than 60mm / 2.4", then Iīll just take it off. Otherwise, it not only lessens the tension needed in the holding screws, it also makes very easy to dupli(multipli)cate parts that are supposed to be of equal length and equally rounded. And the end of the stop makes for a bit more sensitive handle. A most sensible addition! Thank you again, Joe / 75Plus! :thumbup: Rob.Wilson: the rocker arm is one of many that I made for an upcoming engine. I sensibly made some spares, and thatīs one which has been subject of all sorts of tests and experiments, like this one here. |
| ieezitin:
Cid. Nice work. A well constructed jig that will serve you years. Anthony. |
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