material support

Topics related to wrapped rotary machining in Aspire or VCarve Pro

material support

Postby vtx1029 » Fri Mar 25, 2016 2:37 am

I'm needing to do some several production runs of a rotary piece that's 5/8 diameter and 40" long. I tried a piece 20" long and it didn't turn out due to deflection during v-carving due to lack of material strength. I'm thinking of simply making a channel in some MDF that the cylinder can rotate in to help support the piece. Anyone done this before and have any input or tips?

Thanks
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Re: material support

Postby IslaWW » Fri Mar 25, 2016 3:11 am

Ive seen versions of roller steady rests using both bearings and inline skate wheels on adjustable supports
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Re: material support

Postby Rcnewcomb » Fri Mar 25, 2016 7:04 am

Jack Jarvis uses kids roller skates. It is talked about 3/4th of the way down this page: ->CNC Rotary Tutorial

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Re: material support

Postby dealguy11 » Sun Mar 27, 2016 12:36 am

I have a steady rest that is 2 pieces of notched hdpe plastic that come in from the sides. Don't have a picture handy. Your idea of notched mdf should work.
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Re: material support

Postby vtx1029 » Tue Mar 29, 2016 8:24 pm

I didn't have any mdf on hand so I used some baltic birch I had laying around. It worked pretty good except the stock lifted while v-carving so I may need to fully contain it when v-carving but this is a great improvement over what I had.
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Re: material support

Postby vtx1029 » Wed Mar 30, 2016 2:26 am

here's a video of it running
https://youtu.be/9NhfHTxynsE
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