Hi,
I've acquired a 3" diameter disk of brass, and I'm considering how to attach it to a 1/4" shaft such that it can be repositioned by sliding it on the shaft (oriented radially, similar to how a hand-wheel is mounted).
Driving set screws through the whole radius (i.e., ~1.375" to the shaft) seems way too much, and I don't have an extra-long tap anyway. Angling them through a shorter distance - in from the side of the disk - might be possible, but it seems difficult to accomplish (I'm quite new to machining) and probably would not hold well.
I actually have two disks, one 3" by 1/2" thick, and one 3" by 1" thick. The larger one is too heavy for the 1/4" shaft (it will flex too much), so I've settled on the 1/2" one. I could machine off a half-inch from the 1" disk, leaving a smaller shoulder, say 1" in diameter, that could easily be drilled and tapped through the 0.375" depths, but it seems like a crime to cut away that much of the ridiculously-expensive brass. Also, that shoulder would be a quite undesirable addition in terms of how the device is supposed to work.
Ultimately, I could press or shrink-fit it, etc. (as discussed in a previous thread), instead of having it movable, but as this is all experimental I may discover that I need to change things later.
I've been finding that there are always smarter ideas out there. What other ideas and options might there be?
Thank you.
I've acquired a 3" diameter disk of brass, and I'm considering how to attach it to a 1/4" shaft such that it can be repositioned by sliding it on the shaft (oriented radially, similar to how a hand-wheel is mounted).
Driving set screws through the whole radius (i.e., ~1.375" to the shaft) seems way too much, and I don't have an extra-long tap anyway. Angling them through a shorter distance - in from the side of the disk - might be possible, but it seems difficult to accomplish (I'm quite new to machining) and probably would not hold well.
I actually have two disks, one 3" by 1/2" thick, and one 3" by 1" thick. The larger one is too heavy for the 1/4" shaft (it will flex too much), so I've settled on the 1/2" one. I could machine off a half-inch from the 1" disk, leaving a smaller shoulder, say 1" in diameter, that could easily be drilled and tapped through the 0.375" depths, but it seems like a crime to cut away that much of the ridiculously-expensive brass. Also, that shoulder would be a quite undesirable addition in terms of how the device is supposed to work.
Ultimately, I could press or shrink-fit it, etc. (as discussed in a previous thread), instead of having it movable, but as this is all experimental I may discover that I need to change things later.
I've been finding that there are always smarter ideas out there. What other ideas and options might there be?
Thank you.
