Help - inside miters not ligning up - Page 2 - Woodworking Talk - Woodworkers Forum
Thread Tools Display Modes
post #21 of 26 Old 05-29-2010, 12:16 PM
Senior Member
Ghidrah's Avatar
Join Date: Mar 2010
Posts: 766
View Ghidrah's Photo Album My Photos
You don't mention the type and size of the BB you're installing or the brand and model of MB.
So, even though as most of the members here have said Coping "IS" corners provides a superior product long term it does take practice to get good at and when you are adept you'll rarely ever do it different.

Couple stupid questions
1. How high is your MB fence?
2. How high is the BB you're trying to install?
3. Assuming the BB is store bought, is the back side relieved, (material removed to assist in flex roll and uneven wall surfaces)?

If the BB is higher than the MB fence and the back of the BB is relieved it may likely be the relief is in contact with the fence in stead of the nailing plane tilting the BB stock back and over the top of the fence. This would explain the reversal of the error when you flip it.

Rarely is a concrete or wood wall close to perfect, add drywall, plaster/joint compound etc and you have a finish mans horror show. Lastly trim stock right from the lumber yd has too high a moisture content and shrink enough within 6 to 12 months to make one cringe. Coping considerably hides the shrinkage from the average eye. If the finish man is worth his/her salt he knows which side of the joint to cope to hide shrinkage from the eye.
Attached Thumbnails
Click image for larger version

Name:	BB.jpg
Views:	224
Size:	76.8 KB
ID:	15133  

Work smart not hard!
Never bite the hand that looks dirty
Ghidrah is offline  
Sponsored Links
post #22 of 26 Old 06-05-2010, 01:10 AM
Junior Member
Join Date: Jun 2010
Posts: 7
View Paul DIY's Photo Album My Photos
I used this coping system with very good results. Takes a bit of patience to set up the template, etc.
Paul DIY is offline  
post #23 of 26 Old 06-06-2010, 01:17 PM
Senior Member
Lola Ranch's Avatar
Join Date: Mar 2010
Location: Central Washington State
Posts: 1,389
View Lola Ranch's Photo Album My Photos
against the current


I miter most all my inside corners but I have a trick that makes it fast and fits tight.

Make your 45 degree plumb cut with the back of the base molding against the saw fence then, without moving you saw setting, flip the molding over and hold the face against the fence. The molding is now upside downs and backwards. Now cut a 45 degree cut from the backside aligned with the from cut but don't cut all the way through, leave about 1/4" to 1/2" and lift the blade out of the cut. Break off the little waste piece that is now dangling off the end. Now you have a little point at the top of your base mold with a relief cut on the back to help get it tight into the corner. You can now push the molding into the corner an actually puncture the drywall tape with the little point and get it to fit really tight. Do the same with the other side and the result should be a perfect fit and faster than coping. This also will work if you cut wider molding flat on your sliding compound saw. If the base doe not have a flat face then you'll have to use some sort of shim to keep it flat to make your back cut.

Not that coping is a bad thing. My method makes removing the base more difficult.
Lola Ranch is offline  
Sponsored Links
post #24 of 26 Old 06-09-2010, 08:08 AM
G Fresh's Avatar
Join Date: Mar 2009
Location: Morgantown, WV
Posts: 49
View G Fresh's Photo Album My Photos
Originally Posted by TimPa View Post
... i often use cardboard as a backer to fill in when this happens. i don't nail either side until i get it vertical, and coping is a must.

Just my personal opinion, but this is the quickest and most efficient. I also use this technique with great success.
G Fresh is offline  
post #25 of 26 Old 06-11-2010, 02:59 PM
Furniture Maker
Join Date: Jan 2009
Location: Southwest Florida
Posts: 4
View Thomas Gioscia's Photo Album My Photos
Originally Posted by schoolio View Post
Hey everyone. This is a very silly question I am sure but I am getting very frustrated so I need help.

I am trying to install baseboard trim around my newly finished basement. I have a simple miter saw (no compound) and I can not get the corners to line up. I stand the trim against the fence and set the saw to 45 degrees. When I go to install the pieces the top fits well but there is a gap at the bottom. If I flip the trim over, opposite problem. Please help, what am I doing wrong??
The problem is simple. The corner into which you are installing the base board is not plumb. The drywall mud or surface requires shims at the bottom to clean up the corner. Try folding a small piece of paper, tape or cardboard and setting it on the floor behind each piece of base before you set them. Adjust the thickness of these shims so that the bottom of the base board closes up. This will solve the problem. Try not to set low nails in the corner. That will open the joint up again. Good Luck
Thomas Gioscia is offline  
post #26 of 26 Old 06-11-2010, 03:09 PM
Senior Member
Join Date: Mar 2010
Location: Sioux Falls, South Dakota
Posts: 282
View ash123's Photo Album My Photos
Cope the inside and backcut the outside.
ash123 is offline  

Quick Reply

Register Now

In order to be able to post messages on the Woodworking Talk - Woodworkers Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
inside drawer finishing harlo01 New Member Introductions 12 03-21-2017 04:16 PM
Compound Miters GAZU General Woodworking Discussion 1 08-12-2009 03:56 PM
Face frame miters on angled front cabinets FirewoodMaker Trim Carpentry & Built-Ins 4 04-23-2009 10:34 PM
Gluing miters. djonesax Joinery 32 10-15-2008 11:26 AM
cutting the inside Allejo Woodturning 7 05-29-2008 02:50 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

For the best viewing experience please update your browser to Google Chrome