Doug Miller wrote:

In article , "James"
wrote:
Hi Group, I just flipped the blades in my 735 planner. These cannot
be sharpened can they?

Yes, they can, although "honed" might be a better word. There's not
enough metal there to allow for heavy grinding, but they can be
lightly ground. I use a Tormek grinder, with their planer-knife jig.
The Tormek doesn't remove metal very fast, so it's easy to get a good
edge without accidentally going too far. I've had my DW735 for over
four years, and use it a lot -- but I'm still on the first set of
knives (and the fourth resharpening). It appears that the fifth
resharp will probably be the last one, and then I'll have to get new
blades.

I run some really old hard oak thru mine and wore a dip in them so I
suspect that there isn't enough edge left. Jim

--

In article , "James" wrote:
Doug Miller wrote:

In article , "James"
wrote:
Hi Group, I just flipped the blades in my 735 planner. These cannot
be sharpened can they?

Yes, they can, although "honed" might be a better word. There's not
enough metal there to allow for heavy grinding, but they can be
lightly ground. I use a Tormek grinder, with their planer-knife jig.
The Tormek doesn't remove metal very fast, so it's easy to get a good
edge without accidentally going too far. I've had my DW735 for over
four years, and use it a lot -- but I'm still on the first set of
knives (and the fourth resharpening). It appears that the fifth
resharp will probably be the last one, and then I'll have to get new
blades.

I run some really old hard oak thru mine and wore a dip in them so I
suspect that there isn't enough edge left. Jim

Depends on how much of a dip. According to DeWalt technical support, the
discard dimension is 7/8" (0.875") width. In my experience, you can get away
with going even smaller, but not by much (maybe another 0.010).

Also, to avoid that problem in the future, vary the position of the boards
when you feed them through so you're not wearing the same section of the blade
every time -- or skew them diagonally so that the entire blade is used on
every pass.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.