LumberJocks

Slab Flattening Jig

  • Advertise with us
Project by MJR posted 06-03-2018 11:38 PM 5254 views 16 times favorited 15 comments Add to Favorites Watch

I have some 8/4, 6/4 and 5/4 rough sawn Oak, Mahogany, Walnut and Maple that’s been sitting for awhile, Most of it is pretty straight but still needs flattening. When I buy slabs I try to get ones with little or no twist, Cup or bow but sometimes I get good size slabs at greatly reduced prices because they have a twist/cup/bow. The lumber yard will flatten one side for $70 but I just can’t see paying for that. I noticed a couple months ago that Stonecoatcountertops.com has a nice jig on their website for $350, But I couldn’t see paying that either and believe it or not last week when I ordered more resin they were sold out. So for $20 I bought 8 little wheels and built my own jig out of scrap 5/4 and 3/4 Poplar and bought a 1 1/2” and 2” planing bit for my router. By making 1/16” to 1/8” depth cuts, One or two passes and I can flatten a good size slab on both sides in 30 minutes to an hour depending on how bad it is.





15 comments so far

View Jim Jakosh's profile

Jim Jakosh

20781 posts in 3162 days


#1 posted 06-04-2018 12:07 AM

Excellent jig. That is on my list to make some day!!

cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View recycle1943's profile

recycle1943

1957 posts in 1678 days


#2 posted 06-04-2018 01:25 AM

Simple, functional, economical – what more can a guy want
Thanks for sharing

-- Dick, Malvern Ohio - my biggest fear is that when I die, my wife sells my toys for what I told her I paid for them

View therealSteveN's profile

therealSteveN

775 posts in 630 days


#3 posted 06-04-2018 01:25 AM

I don’t believe I have seen the wheels on one of these jigs before, have I been missing something? If that tracks straight, and smoothly, then that is the ticket for really big work, or even smaller if a guy doesn’t have a jointer, planer set up. Whatcha gonna make?

Thanks for posting.

-- Think safe, be safe

View MJR's profile

MJR

104 posts in 470 days


#4 posted 06-04-2018 01:39 AM

It tracks straight and smooth, You just have to set it up correctly and have straight and true boards for you rails, I used douglas fir untreated 4×4’s and milled them to perfect square 3×3’s. I have a planer but it only goes up to 12” wide and if I have a board under 12” with a twist I still have to flatten one side to plane it or I’ll just wind up with a planed twisted board LOL And I don’t have a jointer so I square the edges on the table saw after I get them flat

View MJR's profile

MJR

104 posts in 470 days


#5 posted 06-04-2018 01:44 AM

I’m making a big end table for a friend and a console table for me, Probably some cutting boards with the leftovers

View therealSteveN's profile

therealSteveN

775 posts in 630 days


#6 posted 06-04-2018 05:28 AM

Sounds like a plan, hope it keeps fitting your needs.

-- Think safe, be safe

View kocgolf's profile

kocgolf

332 posts in 2234 days


#7 posted 06-04-2018 12:26 PM

Cool, the wheels are a nice addition. Something to copy for sure!

View Breeze73's profile

Breeze73

87 posts in 737 days


#8 posted 06-04-2018 03:47 PM

Thats a really neat jig. The one thing that would concern me would be sawdust from the router getting in the way of the rollers, causing no so flat results. Has this been an issue?

-- Breeze

View MJR's profile

MJR

104 posts in 470 days


#9 posted 06-04-2018 03:52 PM

No issue that I noticed, When the shavings build up I just blow everything off with the air gun

View Peteybadboy's profile

Peteybadboy

308 posts in 2006 days


#10 posted 06-04-2018 09:33 PM

cool jig, I’m going to have to remember this, I have some slabs drying.

-- Petey

View robscastle's profile

robscastle

5148 posts in 2260 days


#11 posted 06-05-2018 06:52 AM

Well it seems to work well and I guess thats the final result wanted.
A question what sort of bit have you got in the router ? it looks to be a Vee? odd

-- Regards Rob

View MJR's profile

MJR

104 posts in 470 days


#12 posted 06-05-2018 10:36 AM

You can get different sizes and with 1/4” or 1/2” shanks depending on your router

View DaleMaley's profile

DaleMaley

435 posts in 2292 days


#13 posted 06-05-2018 12:49 PM

A simple and elegant solution…......I like it !!!!!!

-- Dale, Illinois, http://dalemaley.webs.com/

View Diggerjacks's profile

Diggerjacks

2263 posts in 3195 days


#14 posted 06-05-2018 04:29 PM

Hello MJR

Excellent jig, very fonctionnal and not cheap

in my favorite for the future !!

Thanks for sharing

-- Diggerjack-France ---The only limit is the limit of the mind and the mind has no limit

View robscastle's profile

robscastle

5148 posts in 2260 days


#15 posted 06-09-2018 07:25 AM

Thanks makes sense now !!

-- Regards Rob

Have your say...

You must be signed in to post the comments.

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