Alternatively, you could get a sine bar. Trickier to use, but way cooler. (And much cheaper for equivalent levels of quality.) For real precision you'd need proper gage blocks, but I'm not sure it's that critical here. You could just machine a scrap piece of AL to the right height.
Yeah, that's probably easiest. A lot of mills have tilting heads (with respect to the bed) that would also make this doable, but those are tricky to mess with and precisely shimming the workpiece along one edge, then bolting it down and whalin' away on it with a side mill, seems easiest.
What's real precision? I'm trying to guess the kind of tolerance I need, and not even sure how to estimate that.
The bracket needs to be 90˚ to the bottom face of the track bar. I would guess that needs to be accurate within 5 hundredths, but that's only a guess. I recall the documentation being mostly useless on mounting information, though it may actually contain that detail (hey, 3ricj)...
And yeah, the plan is to find a scrap chunk of Al in the domain of 3" W x 6" L x 3/8" D, square one end, machine the angle into the other, and cut down the squared end to fit. Thankfully, not an operation that would be greatly simplified with a DRO. :) I think I'll look into finding a sine bar.
Hrm, okay, I'm not getting how to use the sine bar. It seems like it would be the correct thing for measuring the angle, but it wouldn't help for accurately clamping the part to be whaled away on... correct?
I'm planning on using a piece anywhere from 1/4" to 1/2" thick, depending on what the scrap bin provides. It needs to be thick so it won't flex too much due to vibration. Otherwise, though, bending would be a good idea.
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Alternatively, you could get a sine bar. Trickier to use, but way cooler. (And much cheaper for equivalent levels of quality.) For real precision you'd need proper gage blocks, but I'm not sure it's that critical here. You could just machine a scrap piece of AL to the right height.
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The bracket needs to be 90˚ to the bottom face of the track bar. I would guess that needs to be accurate within 5 hundredths, but that's only a guess. I recall the documentation being mostly useless on mounting information, though it may actually contain that detail (hey, 3ricj)...
And yeah, the plan is to find a scrap chunk of Al in the domain of 3" W x 6" L x 3/8" D, square one end, machine the angle into the other, and cut down the squared end to fit. Thankfully, not an operation that would be greatly simplified with a DRO. :) I think I'll look into finding a sine bar.
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