I made a box that mounted to the bed of my lathe. Built in advantage?
Infinite speed control. I created 4 12" plywood discs that I mount to the
faceplate and cut a hole on the opposite side for dust collection. Will
post a pic in abpw if you're interested.
Top posted for my convenience.
jc
"Dave Hill" <[email protected]> wrote in message
news:[email protected]...
> Anyone ever made their own disk sander? A free-standing one I mean. What
> size Motor? What speed?
>
I've been seriously considering building one for a while - I have an
extra motor, which I think is 1/2hp. I've been looking at the plans at
http://benchnotes.com/DISK%20SANDER%20/Disk_Sander.html
which seem pretty thorough. They suggest at least a 1/4hp motor, at
1750rpm.
I'm trying to figure out how to best use a miter guide or posts or
something so I can smooth out and make fine adjustments to miters, and
also how hard it would be to make the table tilt. I'd love to see any
other links or pictures of shop-made disc sanders - anyone?
Hope the link helps some,
Andy
Andy Dingley wrote:
> On Wed, 18 Jan 2006 20:00:31 GMT, "Dave Hill" <[email protected]>
> wrote:
>
>
>>Anyone ever made their own disk sander?
>
>
> Almost anyone with a spare electric motor.
>
>
Snip
Yep made one just about identical.
Once I'd fitted the disk to the pulley, pulley to the shaft turned on
the contraption and used an old chisel to cut the outside of the disk
round. No wobble or shake.
Made it using a washing machine motor about 20 yr ago and still use it.
I use shearers sharpening disks at 80g in place of paper. They last
forever and you can do metal as well as wood on them.
Regards
John
On Wed, 18 Jan 2006 20:00:31 GMT, "Dave Hill" <[email protected]>
wrote:
>Anyone ever made their own disk sander?
Almost anyone with a spare electric motor.
> What size Motor? What speed?
Whatever you've got. It's usually made with an induction motor, not a
brushed universal, so you're stuck with 1400 rpm.
Easiest way to make the sanding disk is to find an aluminium V belt
pulley that fits the motor shaft, then drill that for bolts and use it
to support a 10" plywood disk. 10" is a useful size, much better than
the tiny disks on the cheap belt sanders, and you can buy ready-cut
disks to fit it. As always with power sanding, use the best abrasives
you can find - they work better, last better and cost less. Try the
coated blue Hermes stuff from CSM Just Abrasives.
http://www.abrasivesplus.com
Big disks also have less proportional variation in linear speed with
radius, so they're less likely to sand a wedge.
You also need a toolrest. This can be made with a simple plywood &
biscuit box. Make one that's fixed at 90° and it will do nearly
everything you need. If you need an angle, make another one. There are
only a couple of angles you're ever likely to need.
Make a simple dust extract fitting too. If you really need this thing,
then you need it enough to need dust extraction.
If you have steel welding kit then you can make it small and neat.
Otherwise make it out of 3/4" ply and bulky, but still stable.
On Wed, 18 Jan 2006 21:20:01 -0500, John wrote:
> ShopNotes had a good looking one. Look up their back issues. I've always
> wanted to make one.
Issue 12 if that helps...
Cheers,
Andy
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