Dedicated mortiser vs DP mortise attachment - Router Forums
 24Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 13 (permalink) Old 03-01-2019, 12:08 PM Thread Starter
Moderation Team
 
Cherryville Chuck's Avatar
 
Join Date: Sep 2010
Country: Canada
First Name: Charles
Posts: 14,869
 
Default Dedicated mortiser vs DP mortise attachment

I'm in the process of building a night stand for my wife. Two nights ago I was fighting with a machine and then got called in for supper and came out and made a really rookie mistake because my brain wasn't fully involved in what I was doing. I cut the crosspieces for between the legs and forgot to add on the lengths of the tenons. I had already drilled the mortises for the top pieces into the legs with my drill press mortise attachment so I was committed to tenons already. I thought that it wasn't a start over type catastrophe, I'd just switch to floating tenons instead. I just needed to mortise the ends of the cross pieces to match.

I had just finished reading an article in FWW about one of the authors wanting to use his dedicated mortiser for a project but it didn't have enough height capacity. My screw up highlighted a major difference between using a dedicated mortiser and using a drill press mortise attachment. If someone is thinking about buying one opposed to the other this is something they may want to consider first. A dedicated mortiser has a height limitation of around 6-8 inches it looks like (I couldn't find a spec on that in their ads). A floor standing DP with attachment has a height limitation of a little over 3 feet if you turn the table to vertical or move it out of the way. This allowed me to use the DP to make mortises in the ends of my 13 1/2" long pieces instead of drilling and chiseling.
Attached Thumbnails
Click image for larger version

Name:	DP mortise attachment.jpg
Views:	83
Size:	1.15 MB
ID:	366427  


Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
Cherryville Chuck is offline  
Sponsored Links
Advertisement
 
post #2 of 13 (permalink) Old 03-01-2019, 04:55 PM
Registered User
 
Nickp's Avatar
 
Join Date: Dec 2012
Country: United States
First Name: Nick
Posts: 3,360
 
Default

Excellent point, Charles...not so obvious until it's needed...

Nick

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Points to Ponder...

LEARNING - the decision you make to know and
understand more about some thing.

TIME - the thing that gets in the way of learning.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Nickp is offline  
post #3 of 13 (permalink) Old 03-01-2019, 05:21 PM Thread Starter
Moderation Team
 
Cherryville Chuck's Avatar
 
Join Date: Sep 2010
Country: Canada
First Name: Charles
Posts: 14,869
 
Default

I hadn't thought about it before.
DesertRatTom likes this.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
Cherryville Chuck is offline  
Sponsored Links
Advertisement
 
post #4 of 13 (permalink) Old 03-01-2019, 07:49 PM
Forum Contributor
 
DesertRatTom's Avatar
 
Join Date: Jul 2012
Country: United States
First Name: Tom
Posts: 15,630
 
Default

Good thoughts. Is it rigid enough to stay vertical with hard wood? Been thinking about getting the DP attachment beause I just won't use a mortising machine that much.

The more I do, the less I accomplish.
DesertRatTom is offline  
post #5 of 13 (permalink) Old 03-01-2019, 08:58 PM Thread Starter
Moderation Team
 
Cherryville Chuck's Avatar
 
Join Date: Sep 2010
Country: Canada
First Name: Charles
Posts: 14,869
 
Default

That's white birch that's 30 years old I'm using it on Tom so yes. Once the points enter the wood the top isn't going to move. A dedicated mortiser will set you back around $500, the attachment was $130 I think, but 25 years ago roughly. BJ used to say why have another machine taking up room when you already have a DP. That was my sentiment too but now I realize that the DP has far greater range so to me that makes the attachment an even better deal. The attachment takes 5 minutes or less to mount BTW. There is a clamp ring on the yoke that fits on the base of the quill, above the chuck. Mine was a Delta attachment for a Delta DP so no issues with fit but it came with a bushing for a different size quill and it sounds like the two sizes are pretty standard.
Danman1957 and DesertRatTom like this.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
Cherryville Chuck is offline  
post #6 of 13 (permalink) Old 03-02-2019, 12:28 AM
Forum Contributor
 
Herb Stoops's Avatar
 
Join Date: Oct 2014
Country: United States
First Name: Herb
Posts: 7,346
 
Default

Quote:
Originally Posted by Cherryville Chuck View Post
That's white birch that's 30 years old I'm using it on Tom so yes. Once the points enter the wood the top isn't going to move. A dedicated mortiser will set you back around $500, the attachment was $130 I think, but 25 years ago roughly. BJ used to say why have another machine taking up room when you already have a DP. That was my sentiment too but now I realize that the DP has far greater range so to me that makes the attachment an even better deal. The attachment takes 5 minutes or less to mount BTW. There is a clamp ring on the yoke that fits on the base of the quill, above the chuck. Mine was a Delta attachment for a Delta DP so no issues with fit but it came with a bushing for a different size quill and it sounds like the two sizes are pretty standard.
Are you using square tenons in the spreaders instead of round?
Herb
Herb Stoops is offline  
post #7 of 13 (permalink) Old 03-02-2019, 01:13 AM Thread Starter
Moderation Team
 
Cherryville Chuck's Avatar
 
Join Date: Sep 2010
Country: Canada
First Name: Charles
Posts: 14,869
 
Default

Quote:
Originally Posted by Herb Stoops View Post
Are you using square tenons in the spreaders instead of round?
Herb
Yes. I used a 1/2" chisel and overlapped the holes to about 3/4" long so I cut some rectangular stock to match. If it's a little tight it only takes a minute to hand chisel out one end. None have been too loose yet but if they are I use paper or cotton cloth to tighten them up if needed. Cotton and paper will both absorb the glue and become part of the joint.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
Cherryville Chuck is offline  
post #8 of 13 (permalink) Old 03-02-2019, 07:10 AM
Registered User
 
Stoneface's Avatar
 
Join Date: Dec 2008
Country: United States
First Name: Frank
Posts: 200
 
Default

I have the opportunity to purchase a usd Delta mortising machine for $150 with 4 drills. New it is $352 without drills. I cannot justify the great buy. I have the drill press attachments and works for what I need.

Frank

Frank
Stoneface is offline  
post #9 of 13 (permalink) Old 03-02-2019, 08:08 AM
Registered User
 
smitty10101's Avatar
 
Join Date: Oct 2004
Country: United States
First Name: smitty
Posts: 135
 
Send a message via Yahoo to smitty10101
Default

those of us with Shopsmith's or other multi-tools don't have the floor as a limit!!!
It's the wall that's the limiting factor.

just sayin'

smitty
smitty10101 is offline  
post #10 of 13 (permalink) Old 03-02-2019, 10:37 AM
Forum Contributor
 
DesertRatTom's Avatar
 
Join Date: Jul 2012
Country: United States
First Name: Tom
Posts: 15,630
 
Default

Thanks,I'm going to look into that. I have a WEN DP, which is identical to the Jet, so I can probably get the one for the JET. Sounds like it would be a good idea to contact the manufacturer to be sure. Thinking about it, I suspect I'll want the chisel bits in 3/8ths and one half inch.

I recently bought the Rockler round mortise and tennon jig that uses the pre made tennons, but I'd like to be able to make through tennons as well.

The more I do, the less I accomplish.
DesertRatTom is offline  
Reply

Quick Reply
Message:
Options

Register Now



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

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

Password:


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

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
For Sale: PC Dovetail Jig & Delta DP Mortise Attachment greenacres2 Woodworking Classifieds 7 02-15-2014 08:53 AM
Question About Chisels Jerry Bowen Tools and Woodworking 36 12-29-2012 09:21 AM
Type Of Mortise Chisel To Square Slot Gaia Tools and Woodworking 50 08-29-2011 02:17 PM
Cross Slide Vise for Benchtop Mortiser Michael H Tools and Woodworking 29 10-21-2009 09:27 AM
TS / Router / Mortise Combo PART1 kolias Jigs and Fixtures 1 05-04-2009 06:52 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 On
Refbacks are On

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