Quantcast

How do you make smooth pebbles with wood?

UKworkshop.co.uk

Help Support UKworkshop.co.uk:

AndyT

Established Member
Joined
24 Jul 2007
Messages
11,902
Reaction score
317
Location
Bristol
I think this might get answered best in the Turning section - I think the method has to do with clever chucks in which the pieces are held by friction, turned smooth, moved, another bit turned, etc - but that's not a very complete or confident answer.
 

jasonB

Established Member
Joined
26 Nov 2004
Messages
5,044
Reaction score
0
Location
Surrey
I would have thought start with a bandsaw, then spokeshave, bench mounted belt sander and then a lot of hand sanding. If you were doing a lot then you would likely put them in a drum or vibrating tub with abrasive, leave for a while and out will come pebbles.

J
 

Benchwayze

Established Member
Joined
10 Mar 2007
Messages
9,155
Reaction score
5
Location
West Muddylands
jasonB":2b839cy6 said:
I would have thought start with a bandsaw, then spokeshave, bench mounted belt sander and then a lot of hand sanding. If you were doing a lot then you would likely put them in a drum or vibrating tub with abrasive, leave for a while and out will come pebbles.

J
I think so too.
Same way that you polish real stones/pebbles. With wood you will need to do some final hand sanding and applying finish is all.

Always worth a punt, if you have a tumble-polishing drum. (I suppose you could press the washing machine into service. But watch out for the distaff side) :mrgreen:
 

wallace

Established Member
Joined
13 Feb 2011
Messages
1,960
Reaction score
14
Location
county durham
If they were to be round or egg shaped they are really easy to do on a lathe between centres. But if you wanted them exactly like pebbles they could be started on a lathe and finished by hand. I might have a go later to see what I can come up with
Mark
 

jimi43

Established Member
Joined
12 Mar 2009
Messages
6,921
Reaction score
0
Location
Kent - the Garden of England
Lathe or if no lathe, rasps first from oblong block...then run them by eye up against a disc sander on 60 or 80 grit then hand sand with Abranet from 120 to 400G then 3M micromesh from 1500 to 12000M and you will have some really smooth wood.

On a two dimensional (nearly) level it would be an extension of this I made over the weekend as a prototype....



Totally by hand as described above and smooth as a baby's bottom....and as you say...very tactile!

Jim
 

Pete Maddex

Established Member
Joined
22 Apr 2005
Messages
9,100
Reaction score
64
Location
Nottingham
Hi,

I made these with a disk sander and lots of hand sanding.


If you don't use a lathe I think you will get a more natural look.

Pete
 

Aled Dafis

Established Member
Joined
29 Sep 2005
Messages
1,173
Reaction score
0
Location
New Quay, West Wales
jimi43":t8ybhnx6 said:
On a two dimensional (nearly) level it would be an extension of this I made over the weekend as a prototype....



Totally by hand as described above and smooth as a baby's bottom....and as you say...very tactile!

Jim
Very nice! I tried to make a replacement lens for one in school a while ago and found marking the centre accurately and fine enough quite difficult.
 

jimi43

Established Member
Joined
12 Mar 2009
Messages
6,921
Reaction score
0
Location
Kent - the Garden of England
Aled Dafis":2mkjwb9k said:
Very nice! I tried to make a replacement lens for one in school a while ago and found marking the centre accurately and fine enough quite difficult.
When you square up the end of the acrylic...use a pointed cutter and bring it back to offset on the topslide toolrest and then use the micro adjuster to move the point in on the centre while it is running and just touch it so it creates an indent...then fill that in with a black marker....does that make sense?

Jim
 
Top