Need to hang two homemade closet doors at my daughter's place. We are stuck with hinges that have radius-ed corners. Don't want make a template for the router. Want to chisel the relief the old fashioned way. Any tricks you guys can suggest when it comes to the rounded corners.
All I can think of is to scribe the radius with a box cutter blade and then possibly nibble away at the corner with one of the rounded lathe (wood turning) tools.
Also: The jambs are mdf. Any special advise on chiseling mdf???

All advise appreciated. (note: that's a total of sixteen corners)
Thanks

Ivan Vegvary

On Monday, October 13, 2014 6:58:17 PM UTC-10, Ivan Vegvary wrote:
Need to hang two homemade closet doors at my daughter's place. We are stuck with hinges that have radius-ed corners. Don't want make a template for the router. Want to chisel the relief the old fashioned way. Any tricks you guys can suggest when it comes to the rounded corners.

All I can think of is to scribe the radius with a box cutter blade and then possibly nibble away at the corner with one of the rounded lathe (wood turning) tools.

Also: The jambs are mdf. Any special advise on chiseling mdf???



All advise appreciated. (note: that's a total of sixteen corners)

Thanks



Ivan Vegvary

IMHO I would bite the bullet and make a jig and use a laminate trimmer. I would not suggest trying to chisel MDF.
Just my 2 cents,
Gene

On Monday, October 13, 2014 9:58:17 PM UTC-7, Ivan Vegvary wrote:
Need to hang two homemade closet doors at my daughter's place. We are stuck with hinges that have radius-ed corners. Don't want make a template for the router. Want to chisel...

If you have the right gouge, just strike in on the scribe line. If you
only have straight chisels, do it sloppy. A few mm of gap won't hurt the
mechanics (it's important to mortise, though, accurately, so the hinge
plates won't twist and squeak). If you can see it well enough, you can
freehand a router around the curves.

Also: The jambs are mdf. Any special advise on chiseling mdf???

Large dutchman of something nicer (oak?) Perhaps you lied
earlier, when, referring to MDF, you suggested you wanted to chisel it.

An old technique was to heat the hinges cherry-red, then press them into
the wood; disable the smoke alarm first. When it has cooled,
you just brush away the char, and voila! Instant any-shape-of-hinge mortise!

Sadly, MDF jambs are seen more and more these days. I hate them. Just can't stand them. But sometimes when I trim out a project, they are there... and since one of my hats is a "trim" carpenter... I use what is on site. I don't like them because they aren't rigid enough to keep the jamb from deflection, are more prone to movement due to humidity than wood, and worse, they take double the amount of time to shim them properly when hanging as you need twice the shims.

So, bad news. MDF comes in all types of densities, resin bases, and prep methods. Cutting with hand tools is tough. Cutting and maintaining the depth you need to properly set a hinge is almost impossible with a chisel.

Porter Cable to the rescue! I bought this gadget several years ago and have used it to hang a couple of hundred (I do mean that literally) doors. The double headed nails are long gone, replace by fine threaded sheet metal screws. It works well if you are patient, set your router right, and do a few test cuts to make sure you understand the setup and use of the template. And it even comes with a "perfect fit" router bit matched to the jig and will cut a nearly perfect radius for almost all hinges.

I dismissed this as a plastic piece of crap when I saw it, but my old commercial rep told me to try it, and bring it back if I didn't like it. Now it is a permanent fixture in my door kit with the attending router, hole saw kit and 1" paddle bit for latchsets and deadbolts.

http://www.amazon.com/PORTER-CABLE-5...hinge+template

These are also available at some Home Depot stores, which is where I bought mine.

Robert

"Ivan Vegvary" wrote in message

Need to hang two homemade closet doors at my daughter's place. We are
stuck with hinges that have radius-ed corners. Don't want make a
template for the router. Want to chisel the relief the old fashioned
way. Any tricks you guys can suggest when it comes to the rounded
corners.

All I can think of is to scribe the radius with a box cutter blade and
then possibly nibble away at the corner with one of the rounded lathe
(wood turning) tools.

If you have a lathe chisel that fits the radius, you are home free, no
scribing needed. If not, scribe and use a flat chisel to cut into the
scribe cut horizontally using the point of the chisel.

Also: The jambs are mdf. Any special advise on chiseling mdf???

Best advice I know of: replace it.

All advise appreciated. (note: that's a total of sixteen corners)

Personally, I'd make a template...a few pieces of 1/4 ply, some glue and
all done. Even easier, saw out an opening the size of the hinge leaf from
a piece of 1/2" ply. In either case, use a router bit the correct diameter
and your template can have square corners.


--

dadiOH
____________________________

Winters getting colder? Tired of the rat race?
Taxes out of hand? Maybe just ready for a change?
Check it out... http://www.floridaloghouse.net

On 10/13/2014 11:58 PM, Ivan Vegvary wrote:
Need to hang two homemade closet doors at my daughter's place. We are stuck with hinges that have radius-ed corners. Don't want make a template for the router. Want to chisel the relief the old fashioned way. Any tricks you guys can suggest when it comes to the rounded corners.
All I can think of is to scribe the radius with a box cutter blade and then possibly nibble away at the corner with one of the rounded lathe (wood turning) tools.
Also: The jambs are mdf. Any special advise on chiseling mdf???

All advise appreciated. (note: that's a total of sixteen corners)
Thanks

Ivan Vegvary

I moved 2 doors to the opposite side of the openings in a neighbors
home, not the same builder thank goodness.

The jams were MDF. I marked the locations with a pencil around the
hinge, used a utility knife to score the out line, and a sharp chisel to
remove the material. This was not a problem but must be VERY careful
not to go too far. IMHO it was easier than chiseling wood as there was
no grain to contend with. Ultimately a freehand trim router may have
been better for removing the material after marking and scoring.
Tedious on both counts.

Leon wrote:


The jams were MDF. I marked the locations with a pencil around the
hinge, used a utility knife to score the out line, and a sharp chisel
to remove the material. This was not a problem but must be VERY careful
not to go too far. IMHO it was easier than chiseling wood as
there was no grain to contend with. Ultimately a freehand trim
router may have been better for removing the material after marking
and scoring. Tedious on both counts.

Agreed in my experience with chiseling mdf. Both a blessing and a curse.
It does chisel easily from the standpoint of there being no grain, but it
does take a nice sharp chisel and a careful hand. Almost more of a paring
than a real chisel work.

--

-Mike-

On 10/14/2014 9:51 AM, Mike Marlow wrote:
Leon wrote:


The jams were MDF. I marked the locations with a pencil around the
hinge, used a utility knife to score the out line, and a sharp chisel
to remove the material. This was not a problem but must be VERY careful
not to go too far. IMHO it was easier than chiseling wood as
there was no grain to contend with. Ultimately a freehand trim
router may have been better for removing the material after marking
and scoring. Tedious on both counts.

Agreed in my experience with chiseling mdf. Both a blessing and a curse.
It does chisel easily from the standpoint of there being no grain, but it
does take a nice sharp chisel and a careful hand. Almost more of a paring
than a real chisel work.



Yeah! LOL. I did not use a hammer at all, strictly hand power.