Needs Pictures: 0
Results 1 to 15 of 17
-
16th Sep 2021, 03:53 AM #1Intermediate Member
- Join Date
- Jul 2021
- Location
- Europe
- Age
- 30
- Posts
- 36
Jeweling/circle polish tool, done very easy
so the problem with putting this tool together has always been attaching the damn scotch brite. just to explain what this tool, its an abrasive tool thats inserted into a drill press (it doesnt work with hand drill) and its forced against a metal plate in which the abrasive grinds the surface to cause a circular pattern
many methods have been devised for this, velcro, glue, rolled up sandpaper in a small pipe etc, but i have not yet come across something similar to what i eventually managed to throw together
the construction is simple. M16 threaded rod, disc at the bottom, 2 M16 nuts
its constructed by first putting on a nut and then positioning the nut so that it keeps the disc just a bit above the threaded rod so you get a bit of a gap to fill out with welding
we have sold off our lathe, but i found it that carefully grinding the end on belt sander works well if you just keep light grip with left hand and use right hand to kind of "stroke" it to rotate, otherwise you may be able to cause the belt grinder hitting the threaded rod to cause the rotation itself but you need a piece of metal to push against it with to cause very low friction with the object you apply pressure with
next up you put a piece of scotch brite around the disc so that it touches the threaded rod, a nut, and preferably a disc is then put on the threaded rod so that it keeps the scotch brite into place
this system is very easy to work with as you can very quickly change scotch brite- but really you rarely have to do this as you can simply grind the outer layer of scotch brite on a belt grinder and the scotch brite will go an extra mile
you can get a large plate finished fast if you crank the drill press up to 3000rpm and dont clamp it down.
jeweling tool 2.jpgjeweling tool 1.jpg
-
16th Sep 2021, 12:17 PM #2Senior Member
- Join Date
- Jun 2011
- Location
- gold coast
- Posts
- 303
HI Zeth,
I'd love to see some pics of the jewelling results your tool makes please
-
16th Sep 2021, 06:44 PM #3Diamond Member
- Join Date
- Aug 2019
- Location
- Revesby - Sydney Australia
- Age
- 56
- Posts
- 1,183
-
17th Sep 2021, 08:41 AM #4
This is engine turning isn’t it ?
Done bit using a dowel and grinding paste from memory.
H.Jimcracks for the rich and/or wealthy. (aka GKB '88)
-
17th Sep 2021, 09:15 AM #5
Looks great something I've always admired yet to have a go.
Sent from my SM-T580 using Tapatalk
-
17th Sep 2021, 10:11 AM #6Most Valued Member
- Join Date
- Nov 2007
- Location
- melbourne australia
- Posts
- 3,228
Here are some notes on the subject I found, but haven't yet tried.
Chris
-
17th Sep 2021, 10:22 AM #7Novice
- Join Date
- Apr 2013
- Location
- Mornington Peninsular
- Posts
- 23
A 3M roloc scotch brite pad with a roloc drill arbor does the same thing as far as I can see. That’s what I use.
https://www.3m.com.au/3M/en_AU/p/d/b40064719/
Leigh
Sent from my iPad using Tapatalk
-
17th Sep 2021, 06:43 PM #8
There needs to be some form of jigging to :
Keep the swirls in a straight line
and have a method to equally space the "jewels".
If either of these are overlooked the results can look pretty crappy in a larger size unit.
We found this out in doing an aluminium jeweled dash for a race sports car.If the x + y increments are not kept equal it sticks out like DB's.
Grahame
-
17th Sep 2021, 08:24 PM #9Most Valued Member
- Join Date
- Nov 2007
- Location
- melbourne australia
- Posts
- 3,228
-
18th Sep 2021, 05:05 AM #10Intermediate Member
- Join Date
- Jul 2021
- Location
- Europe
- Age
- 30
- Posts
- 36
yes i havent quite figured out how to make a simple machine for dishing out maybe 20mm of spacing with a single click, i just do it by hand and it takes quite some concentration to get it well. but ive managed to do that, simply positioning the jeweling tool just outside the center of the last jeweling circle
it also works well on zincplated parts
interesting with the steel wire brush
one interesting thing is that if you glue it on, you can have maybe 50mm plate that you attach the scotch brite on, but if you only attach 10mm piece of scotch bright dead center, you will make 10mm jeweling
the wire brush seems perfect for making smaller jeweling, which is oftenly very difficult to me since i have used rolled up sandpaper stuck in a small metal pipe- and i did make a small configuration for this where you can push out the sandpaper using a screw on the top to get more "milage" and at the same time able to mount it in a drill press
my boss usually complains about me making "weird" stuff, but this one plate for our bandsaw he havent yet complained about- i take it hes simply baffled haha.
you need to see it in motion to really get the gist (video underneath)
https://gyazo.com/07008e074d8e846755e5d8607025ceff
-
18th Sep 2021, 11:23 AM #11Member: Blue and white apron brigade
- Join Date
- Feb 2006
- Location
- Perth
- Posts
- 7,182
An X/Y vice/table would produce a pretty regular spacing.
-
18th Sep 2021, 12:02 PM #12Novice
- Join Date
- Apr 2013
- Location
- Mornington Peninsular
- Posts
- 23
I bought the roloc arbor from Total Tools as a kit with some sanding disks. I used the blue pad - no idea what grit.
My first attempt:
As Bob suggests, trying it on the drill press was hopeless. Used the y axis on the mill with a DRO for overlap.
Leigh
Sent from my iPad using Tapatalk
-
18th Sep 2021, 01:34 PM #13Most Valued Member
- Join Date
- Nov 2007
- Location
- melbourne australia
- Posts
- 3,228
Here's a pretty good video on the subject. Includes using an X-Y table with DRO.
https://www.youtube.com/watch?v=DY7sCiahxHAChris
-
18th Sep 2021, 01:38 PM #14Most Valued Member
- Join Date
- Nov 2007
- Location
- melbourne australia
- Posts
- 3,228
Thanks. The blue is 240 grit.
https://www.totaltools.com.au/123449-pferd-50mm-very-fine-quick-change-surface-conditioning-disc-combidisc-5pc-47200083Chris
-
18th Sep 2021, 03:51 PM #15
There is some extra material I found.
I have been looking at some early pics of the Spirit of St. Loius aircraft.
It s is beautiful compared it to some other jewelling.
Here is some more information on setups.
https://ezinearticles.com/?Engine-Tu...uide&id=622286
Grahame
Similar Threads
-
Easy made Tapping Tool
By KBs PensNmore in forum METALWORK GENERALReplies: 5Last Post: 30th Nov 2019, 09:57 PM -
easy diamond tool height setter
By texx in forum METALWORK GENERALReplies: 13Last Post: 24th Jul 2014, 12:04 AM -
What's the Best Way to Polish Checker-plate
By zuffen in forum TRAILERS & OTHER FABRICATED STUFFReplies: 2Last Post: 26th Jun 2012, 07:25 PM -
How to polish brass to mirror finish?
By wsal in forum METALWORK GENERALReplies: 14Last Post: 11th Nov 2011, 02:52 PM -
Iosso metal polish
By R. McCarthy in forum METALWORK GENERALReplies: 9Last Post: 29th Jul 2008, 12:20 AM