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Posted by Ignoramus7760 on July 21, 2007, 8:23 pm
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I made adjustable machine feet. I want to perfectly level my
Bridgeport mill by adjusting legs. Then some manipulations of parts
during milling would become easier, as I could use a machinist level
to align parts in vises horizontally. I want them to also be
retractable so that I can mount the casters back and move the mill
around.
These feet are made from 1"-10 all thread studs and same nuts, welded
onto 0.25x1.5x4.75" steel flats.
http://igor.chudov.com/projects/My-Bridgeport-Mill/Adjustable-Machine-Feet/
I have not yet welded them to the mill's bottom frame (which is a
homemade frame for casters, if you recall, I would not be welding
these feet to the actual machine base).
My question is whether I need some set screw or some such, to prevent
these 1" allthread studs from working themselves out of alignment,
over the years, due to vibration. Or would they just hold in place.
Right now, they are held by the nuts to the extent of being either
difficult or impossible to turn by hand, but all are easy to turn with
a wrench. (due to changes of alignment that happened during welding).
My gut feeling is that setscrews are not necessary, but I wanted to
hear some opinions first.
thanks
i
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Posted by Ecnerwal on July 21, 2007, 8:50 pm
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> These feet are made from 1"-10 all thread studs and same nuts, welded
> onto 0.25x1.5x4.75" steel flats.
If you have movement (not too likely) a jam nut is simple, and perhaps
more effective as well.
--
Cats, coffee, chocolate...vices to live by
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Posted by Paul on July 21, 2007, 8:52 pm
Please log in for more thread options Ignoramus7760 wrote:
> I made adjustable machine feet. I want to perfectly level my
> Bridgeport mill by adjusting legs. Then some manipulations of parts
> during milling would become easier, as I could use a machinist level
> to align parts in vises horizontally. I want them to also be
> retractable so that I can mount the casters back and move the mill
> around.
>
> These feet are made from 1"-10 all thread studs and same nuts, welded
> onto 0.25x1.5x4.75" steel flats.
>
> http://igor.chudov.com/projects/My-Bridgeport-Mill/Adjustable-Machine-Feet/
>
> I have not yet welded them to the mill's bottom frame (which is a
> homemade frame for casters, if you recall, I would not be welding
> these feet to the actual machine base).
>
> My question is whether I need some set screw or some such, to prevent
> these 1" allthread studs from working themselves out of alignment,
> over the years, due to vibration. Or would they just hold in place.
>
> Right now, they are held by the nuts to the extent of being either
> difficult or impossible to turn by hand, but all are easy to turn with
> a wrench. (due to changes of alignment that happened during welding).
>
> My gut feeling is that setscrews are not necessary, but I wanted to
> hear some opinions first.
>
> thanks
>
> i
Add a jam nut to each, after final level is achieved snug them up.
Paul
--
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It's a Linux world....well, it oughta be.
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Posted by Ignoramus7760 on July 21, 2007, 8:59 pm
Please log in for more thread options > Add a jam nut to each, after final level is achieved snug them up.
Paul (and Ecnerwal) thanks. I am not sure if there is clearance for a
jam nut, due to nuts having been welded to flat bars.
i
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Posted by Too_Many_Tools on July 21, 2007, 9:37 pm
Please log in for more thread options wrote:
> I made adjustable machine feet. I want to perfectly level my
> Bridgeport mill by adjusting legs. Then some manipulations of parts
> during milling would become easier, as I could use a machinist level
> to align parts in vises horizontally. I want them to also be
> retractable so that I can mount the casters back and move the mill
> around.
>
> These feet are made from 1"-10 all thread studs and same nuts, welded
> onto 0.25x1.5x4.75" steel flats.
>
> http://igor.chudov.com/projects/My-Bridgeport-Mill/Adjustable-Machine...
>
> I have not yet welded them to the mill's bottom frame (which is a
> homemade frame for casters, if you recall, I would not be welding
> these feet to the actual machine base).
>
> My question is whether I need some set screw or some such, to prevent
> these 1" allthread studs from working themselves out of alignment,
> over the years, due to vibration. Or would they just hold in place.
>
> Right now, they are held by the nuts to the extent of being either
> difficult or impossible to turn by hand, but all are easy to turn with
> a wrench. (due to changes of alignment that happened during welding).
>
> My gut feeling is that setscrews are not necessary, but I wanted to
> hear some opinions first.
>
> thanks
>
> i
Good idea Ig and well excuted.
I would use a jam nut...it will hold.
FYI...you may want to use the long all thread coupling nuts next
time...it makes the job easier. They are normally used to connect
lengths of all thread together. I used them on a similar project and
they eliminated the problem of trying to keep a series of smaller nuts
aligned while welding.
http://www.cnanchor.com.cn/product0.asp?id=562
TMT
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> onto 0.25x1.5x4.75" steel flats.