Hi Dale. I have a collar for my router and I have seen how Norm makes the plywood templates for cutting the mortis for a but hinge. It is true that the mortis will take the vertical component of force but a heavy door is going to have torque on it from it's center of mass being some distance from the hinges. I have seen doors in which the screws that hold the upper hinges have pulled out.
Regards. Max. K 4 O D S. Email: [EMAIL PROTECTED] Transistor site http://www.funwithtransistors.net Vacuum tube site: http://www.funwithtubes.net Music site: http://www.maxsmusicplace.com To subscribe to the fun with tubes group send an email to, [EMAIL PROTECTED] ----- Original Message ----- From: "Dale Leavens" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, June 15, 2008 8:55 PM Subject: Re: [BlindHandyMan] But hinges vs strap hinges. >I believe those are called 'T' hinges. > > The beauty of a but hinge is that it is countersunk into the edge of the > door and the edge of the frame so much of the weight is born by that > mechanical fixation and not the screws at all. > > It is usual to drive a long screw from at least one hole in the top and > bottom hinge right through the frame and into the building framing member. > a two or three inch long screw. Often you will have shimmed the door frame > vertical, do it at the hinge point and drive the longer screw through the > shims into the building framing member to secure the door frame and the > hinge vertical. > > They make hinge routing templates to use with a router. I have never owned > one but I have made my own templates for routing a very accurate cut-out > for the hinge. It makes locating them on the frame and the door more > accurate as well. > > If you get a hinge template kit I would be very interested in hearing how > you get along with it and how you like it. > > Those little trim routers are ideal for the job and I have seen Norm and > Tom Silver use battery powered routers too. Although I have two routers I > don't own either type. I would like to add both to my collection. > > T hinges and strap hinges do depend on the sheering force of the screws > however the forces on them can easily slightly twist or bend them in my > albeit limited experience. For some reason too, I find it difficult to > center their pivot point consistently along the edge of the door and when > you don't get it exactly right, the door doesn't work well.None of them > seem to work well for long, even the ones someone else installs.Maybe the > screws move sideways a little, I don't know. Obviously they are popular > choices for a lot of people, there must be a reason for that. > > > > > ----- Original Message ----- > From: Max Robinson > To: Blind Handyman > Sent: Sunday, June 15, 2008 8:30 PM > Subject: [BlindHandyMan] But hinges vs strap hinges. > > > I've been thinking about this question of hinges for the doors to my > shop. > A standard but hinge has the counter sinks drilled so the plates of the > hinge are between the two surfaces of the door and the frame as they come > together. On a heavy door the screws in the top and center hinge are in > tension which is usually not recommended. > > On a strap hinge which is mounted on the outside surface of the door and > frame the screws are mostly in sheer which is the condition in which they > are strongest. The hinges that were supplied with the lawn mower house > kit > and those used on the 3 foot wide shop built doors on the teddybear > cottage > are a kind of hybrid type looking like a strap hinge on one side of the > pivot and a but hinge on the other. These are surface mounted like a > strap > hinge. > > Regards. > > Max. K 4 O D S. > > Email: [EMAIL PROTECTED] > > Transistor site http://www.funwithtransistors.net > Vacuum tube site: http://www.funwithtubes.net > Music site: http://www.maxsmusicplace.com > > To subscribe to the fun with tubes group send an email to, > [EMAIL PROTECTED] > > > > > > > ------------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.524 / Virus Database: 270.3.0/1503 - Release Date: 6/14/2008 > 6:02 PM > > > [Non-text portions of this message have been removed] > > > ------------------------------------ > > Send any questions regarding list management to: > [EMAIL PROTECTED] > To listen to the show archives go to link > http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 > Or > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > The Pod Cast address for the Blind Handy Man Show is. > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > Visit The Blind Handy Man Files Page To Review Contributions From Various > List Members At The Following address: > http://www.jaws-users.com/JAWS/handyman/ > > Visit the archives page at the following address > http://www.mail-archive.com/[email protected]/ > > If you would like to join the JAWS Users List, then visit the following > address for more information: > http://www.jaws-users.com/ > For a complete list of email commands pertaining to the Blind Handy Man > list just send a blank message to: > [EMAIL PROTECTED] Groups Links > > > > > > > -- > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.524 / Virus Database: 270.3.0/1504 - Release Date: 6/15/2008 > 5:52 PM >
