Author Topic: Fixing misplaced mortises  (Read 382 times)

0 Members and 1 Guest are viewing this topic.

Offline Birdhunter

  • Posts: 3241
  • Woodworker, Sportsman, Retired
Fixing misplaced mortises
« on: November 20, 2020, 02:48 AM »
Ever drill a Domino mortise in the wrong place. I have, enough to develope a trick for filling them. Of course a narrow mortise fills with a single tenon which is trimmed flush using a Jananese flues cut saw,

A wide mortise takes a smidgem of skill to filll, I trim off about 30 percent of the right side of the filling mortise I trim off about 49 percent of thr second fillet temom.

Insert both into the mortise and tip rim thr side until you get a super tight fit. Add glue and hammer the pieces in place, trim with flush gut was, sand I’d necessary.

This is fiddlly, but it works. I even have jigs to trim dowel for filling errant mortises.
Birdhunter

Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.


Offline PaulMarcel

  • Posts: 1522
    • Voilà, my blog
Re: Fixing misplaced mortises
« Reply #1 on: November 20, 2020, 03:12 AM »
Since, presumably, the mistaken mortise will be hidden in the final assembly, a quick mix of Bondo deposited into the "oh fk my settings were off!" mortise, and 20 minutes later, you can very easily level the fill with a chisel. Cuss, clean-up, have a relaxing Glencarin for another 20 minutes and you can re-mortise. If Bondo is considered a cheat, recall many restorers live by it. Personally, I have a date with my Bondo bucket tomorrow making grip-strength attachments for, yeah, circus.
Visit my blog for Festool adventures
IG: @PaulMarcel328 - basically stories, mix of circus, woodworking, maybe gym stuffs... it's not an extension of my blog, /tedtalk

Offline Roseland

  • Posts: 683
Re: Fixing misplaced mortises
« Reply #2 on: November 20, 2020, 03:39 AM »
The one time I had to fill a misplaced Domino hole, I cut two Dominos , each just over half width but cut at a taper.  I pressed one in fully home followed by the second until it filled the width.  That it probably didn't get down to the bottom of the hole didn't matter.

Andrew
TS55, MFT/3, OF1400, OF1010, CT26, RS100, ETS125, CXS, MFS400, DF-500, Zobos.

Offline Birdhunter

  • Posts: 3241
  • Woodworker, Sportsman, Retired
Re: Fixing misplaced mortises
« Reply #3 on: November 20, 2020, 05:40 AM »
Two part epoxy wood filler works well. It has to my thoroughly “mangled” to get the two colors well mixed, but it dries harder than the wood I am filling. I find Bondo is easy to work with, but not structurally tough.
Birdhunter

Offline Sparktrician

  • Posts: 4060
Re: Fixing misplaced mortises
« Reply #4 on: November 20, 2020, 11:11 AM »
One option is to glue in a domino, knowing that will project a bit.  Then saw off the excess and re-mortise in the correct location.  If one has used a medium or wide mortise in the wrong place, glue in a domino, but do it as tight as possible to one side of the mortise.  When the glue has dried, cut off the excess, then put another mortise in such that it covers the pre-existing gap.  Glue in another domino.  When the glue has set up, cut off the excess and cut a (hopefully) final mortise in the correct location. 
- Willy -

  "Show us a man who never makes a mistake and we will show a man who never makes anything. 
  The capacity for occasional blundering is inseparable from the capacity to bring things to pass."

 - Herman Lincoln Wayland (1830-1898)

Offline Cheese

  • Posts: 7876
Re: Fixing misplaced mortises
« Reply #5 on: November 20, 2020, 11:55 AM »
Here's what I've done for wide mortices. Cut a couple with a band saw, fit, glue, trim & re-Domino. No one knows... [big grin]