LumberJocks

any idea how to create this concave depression

  • Advertise with us

« back to Woodworking Skill Share forum

Forum topic by rizzo posted 10-31-2016 01:12 AM 2077 views 1 time favorited 25 replies Add to Favorites Watch
View rizzo's profile

rizzo

34 posts in 1085 days


10-31-2016 01:12 AM

Topic tags/keywords: how to concave router technique

It seems so perfect that there is no way it was hand carved.. I saw this and I can’t figure out how i would do it. Any guesses on how this might be done. I just think it is really cool.


25 replies so far

View sras's profile

sras

4658 posts in 2962 days


#1 posted 10-31-2016 01:34 AM

A small power grinder could work for this…

-- Steve - Impatience is Expensive

View TheFridge's profile

TheFridge

8287 posts in 1319 days


#2 posted 10-31-2016 05:34 AM

Looks like a spokeshave.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View Mikesawdust's profile

Mikesawdust

324 posts in 2872 days


#3 posted 10-31-2016 09:18 AM

my guess would be a drill press with a special bit

-- You never cut a piece to short, you are just prepping that piece for a future project

View Tony_S's profile

Tony_S

765 posts in 2916 days


#4 posted 10-31-2016 09:54 AM

It’s made by these guys in L.A.
http://www.thewoodenpalate.com/
From what I can tell, it’s at least started with an angle grinder. Probably scrapers and sanders after that.
http://the-wooden-palate.myshopify.com/pages/inside-the-woodshop
Ive seen some of their products personally….very nice….very expensive.
This is a retailer in Calgary here.(only one in Canada)
http://shop.lemonceillo.com/search/results?q=walnut

All that said, I’ve made about a dozen of them. A router and a template works fine with a lot of scraping and sanding afterwards. CNC worked better, especially for the round bottom….still a fair amount of sanding involved.

-- It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

View Cooler's profile

Cooler

299 posts in 676 days


#5 posted 10-31-2016 02:24 PM



my guess would be a drill press with a special bit

- Mikesawdust

Yes, “convex drill bits”. I’ve never used one, and I’ve only ever seen them in pictures. Plus they look like they would be ungodly expensive.

https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=convex%20drill%20bit

Perhaps a really large spade bit could be re-ground to make this shape.

-- This post is a hand-crafted natural product. Slight variations in spelling and grammar should not be viewed as flaws or defects, but rather as an integral characteristic of the creative process.

View GR8HUNTER's profile

GR8HUNTER

2947 posts in 545 days


#6 posted 10-31-2016 02:32 PM

bowl bit ???

-- Tony Reinholds,Pa. REMEMBER TO ALWAYS HAVE FUN

View Greg the Cajun Wood Artist's profile

Greg the Cajun Wood Artist

380 posts in 775 days


#7 posted 10-31-2016 02:32 PM

A core box router bit will do it…but the largest diameter I have seen is 2”

-- Wood for projects is like a good Fart..."better when you cut it yourself"

View jbay's profile

jbay

1851 posts in 732 days


#8 posted 10-31-2016 02:53 PM

Probably done with a rosette cutter.
It would be pretty easy to have a knife cut for one of these,
if you were going to do enough of them to make it worth it.

-- If anyone would like to see my Portfolio, PM me and I would be glad to send you the link.

View Loren's profile

Loren

9602 posts in 3481 days


#9 posted 10-31-2016 03:18 PM

Lotta sanding. You can get curved rubber sanding
“drills” you would glue sandpaper to.

In terms of the carving, die grinders, etc… skill.

The dish could be roughed out then the sides
defined with a large core box bit and a template.
I would use an overarm router and I suspect that’s
what they used for all the carving, using a template
made to follow the edge and a big coving bit.

View Jack Lewis's profile

Jack Lewis

208 posts in 911 days


#10 posted 10-31-2016 03:21 PM

That was offset mounted on a large lathe. Betcha!

-- "Now we are getting no where, thanks to me"

View rick1955's profile

rick1955

264 posts in 1264 days


#11 posted 10-31-2016 05:34 PM

View JAAune's profile

JAAune

1769 posts in 2150 days


#12 posted 11-01-2016 02:06 PM

I think it’s possible to make a router jig that tilts in two directions and cuts that shape.

Jack Lewis could be right about the offset mount but it would require a massive lathe or one that has very slow RPM.

If I had to make just one and needed it perfect, I’d cut most of the scoop with a die grinder then sand it smooth with a half-sphere sanding block creating on the lathe.

-- See my work at http://remmertstudios.com and http://altaredesign.com

View DrDirt's profile

DrDirt

4407 posts in 3575 days


#13 posted 11-01-2016 02:26 PM

The company likely just sets up a CNC and says give me a depression 4 inches across and 1.7 inches deep..then just hit ‘Enter’

-- “The two most important days in your life are the day you are born and the day you find out why.” Mark Twain

View Ripper70's profile

Ripper70

603 posts in 741 days


#14 posted 11-01-2016 03:45 PM

View rizzo's profile

rizzo

34 posts in 1085 days


#15 posted 11-01-2016 04:04 PM

Thanks so much everyone! lots of great ideas and things to try! I really appreciate it. I also came across this video, which seems like a pretty cool method / too-build.

https://vimeo.com/52774678

showing 1 through 15 of 25 replies

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com