The Forestry Forum is sponsored in part by:




TimberKing Sawmills



The Largest Inventory of Used Chainsaw Parts in the World

Toll Free 1-800-582-0470

LogRite Tools


Forest Products Industry Insurance

Norwood Industries Inc.

Sawmill & Woodlot Magazine



Wood Processing equpment. Splitters, Processors, Conveyors

Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL

Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades

Comstock Logging

Turbosawmill

Sawmill Exchange

BRUTE FORCE Authorized Dealer

Woodshax Outdoor Vending Solutions



Forestry Forum Tool Box

Author Topic: Brace Pockets - Drilling Strategy  (Read 787 times)

0 Members and 1 Guest are viewing this topic.

Offline Rougespear

  • Full Member x2
  • ***
  • Posts: 236
  • Salmon Arm, British Columbia
Brace Pockets - Drilling Strategy
« on: December 20, 2016, 10:45:37 am »
When drilling brace pockets, I see some maintaining the 45-degree angle while others just bore the entire mortise to full depth.  Rationale on the latter strategy is the grain has already been severed below, as well as it negating the possibility of a brace not seating in the mortise fully because of a conflict along the 45-degree slope.

What's the strategy?
Custom built Cook's-style hydraulic bandmill.

Offline Dave Shepard

  • Senior Member x2
  • *****
  • Posts: 9869
  • Age: 2012
  • Location: Alford Massachusetts
  • Gender: Male
  • Geometrically proportional
    • My homepage
Re: Brace Pockets - Drilling Strategy
« Reply #1 on: December 20, 2016, 11:13:52 am »
I bore everything full depth unless replicating a scribe rule mortise in restoration.
Wood-Mizer LT40HDD51-WR Wireless, Kubota L48, Honda Rincon 650, TJ208 G-S, and a 60"LogRite!

Offline Rougespear

  • Full Member x2
  • ***
  • Posts: 236
  • Salmon Arm, British Columbia
Re: Brace Pockets - Drilling Strategy
« Reply #2 on: December 22, 2016, 10:41:37 am »
Thanks Dave!
Custom built Cook's-style hydraulic bandmill.

Offline Dan_Shade

  • Senior Member x2
  • *****
  • Posts: 5119
  • Age: 43
  • Location: Lexington Park, Maryland
  • Gender: Male
  • I don't want to edit my profile!
    • Shade Custom Sawing
Re: Brace Pockets - Drilling Strategy
« Reply #3 on: December 22, 2016, 11:40:20 am »
Can you explain what a brace pocket is?
Woodmizer LT40HDG25 / Stihl 066 alaskan
lots of dull bands and chains

There's a fine line between turning firewood into beautiful things and beautiful things into firewood.

Offline Jim_Rogers

  • Board Moderator
  • *****
  • Posts: 6497
  • Age: 64
  • Location: Georgetown, MA
  • Gender: Male
  • Keep your chisels sharp.
    • jrsawmill.com
Re: Brace Pockets - Drilling Strategy
« Reply #4 on: December 22, 2016, 12:37:13 pm »
Can you explain what a brace pocket is?

A mortise where the brace end tenon goes into. It is commonly called a pocket instead of a mortise.

Jim Rogers

 

 

 

 

 

 
Whatever you do, have fun doing it!
Woodmizer 1994 LT30HDG24 with 6' Bed Extension

Offline ljohnsaw

  • Senior Member x2
  • *****
  • Posts: 2278
  • Age: 57
  • Location: Northern California
  • Gender: Male
  • Happily retired... Working harder than ever!
Re: Brace Pockets - Drilling Strategy
« Reply #5 on: December 22, 2016, 09:25:57 pm »
Jim,
Nice drawing.  Was this used to explain a problem to someone?  I'm just trying to figure out the gap shown at the blue arrow.  Is that just to point out that a gap there is a, relatively, non-issue?  I get the 5 line as the "inner" timber and the dotted line on the brace at the red arrow as the true measure point.
John

Just North-East of Sacramento...

SkyTrak 9038, Davis Little Monster backhoe, Case 16+4 Trencher, Home Built 38" cut Bandmill up to 64'

Offline Rougespear

  • Full Member x2
  • ***
  • Posts: 236
  • Salmon Arm, British Columbia
Re: Brace Pockets - Drilling Strategy
« Reply #6 on: December 23, 2016, 12:47:58 am »
From what I have read, the gap at the top is a product of square rule joinery.  The brace pocket is cut large enough to accommodate the widest of brace stock (e.g. 6 3/16" when expecting a nominal 6"), leaving a slight gap with the smaller brace members.  Correct me if I'm wrong...
Custom built Cook's-style hydraulic bandmill.

Offline Jim_Rogers

  • Board Moderator
  • *****
  • Posts: 6497
  • Age: 64
  • Location: Georgetown, MA
  • Gender: Male
  • Keep your chisels sharp.
    • jrsawmill.com
Re: Brace Pockets - Drilling Strategy
« Reply #7 on: December 23, 2016, 09:04:09 am »
Yes, there needs to be a place for the variability of the brace timber width. The legs of the triangle as well as the hypotenuse are fixed lines and can't be changed. So the variability has to be on the inside of the triangle.
We make the pocket and the housing larger by at least 1/4" then the length of the brace shoulder so that if the brace timber is oversized as it is rough sawn, then there is some way to compensate for the extra width.
If the stock is wider the brace shoulder length will be longer and if the pocket and housing are cut to the drawing size then the brace will not fit. Doing it longer eliminates the risk of the brace not fitting.

You can size your brace stock and make the pockets perfect if you wish but that is a lot of extra work.

Jim Rogers

 

 
Whatever you do, have fun doing it!
Woodmizer 1994 LT30HDG24 with 6' Bed Extension