LumberJocks

DW734 - After blade sharpening how do I set the blade height?

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by Furniture4Fun posted 01-07-2015 09:02 PM 1820 views 0 times favorited 8 replies Add to Favorites Watch
View Furniture4Fun's profile

Furniture4Fun

6 posts in 697 days


01-07-2015 09:02 PM

The sharpener has told me if he were to sharpen the blades for my DeWalt DW734 I need to set the depth gauge so the blades are all at the same height. How is this done on the DW734? Thanks!


8 replies so far

View bigblockyeti's profile

bigblockyeti

3668 posts in 1182 days


#1 posted 01-07-2015 09:49 PM

You can’t, the depth of the blades is controlled by dowels they are secured onto during installation. If they are all being sharpened to exactly the same dimension from these locating dowels then all will be well. The only thing that will be off is your material removal gauge before the infeed roller. If the blades are not all sharpened exactly the same then they will not be doing the same work, you might have one or two performing the bulk of the material removal and one or two doing little or nothing depending on how different the three are.

View OSU55's profile

OSU55

1056 posts in 1451 days


#2 posted 01-07-2015 10:14 PM

As stated above. Unless the blades have large nicks, it’s pretty easy to hone them yourself using a shopmade jig like this http://lumberjocks.com/projects/70287. If I remember correctly, there is only about a 0.100” of the end of the blade protruding when installed in the cutterhead, so not a lot of material can be removed. You can verify before removing the blades. These are referred to as disposable blades for this reason.

View unbob's profile

unbob

718 posts in 1365 days


#3 posted 01-07-2015 11:05 PM

Your sharpener was probably thinking of larger planers, I don’t know if this would work setting knives on the small machines.

View MrUnix's profile

MrUnix

4211 posts in 1660 days


#4 posted 01-07-2015 11:28 PM

Your sharpener was probably thinking of larger planers,

Doubt it.. the Dewalt has fixed position blades, so sharpening them reduces their height and you can’t adjust them to compensate AFAIK. Larger machines or any that have normal knives are not a problem because you can keep adjusting the knife height until they just get too short to be usable. The above responses are correct.. they are considered disposable knives and not designed to be re-sharpened (although there isn’t anything stopping you from doing so). Once material is removed, they will not be the same height, so the depth gauge will be slightly off (by the amount of material removed). It also will mess with the knife height/feed roller/chip breaker alignment I imagine.

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

View Furniture4Fun's profile

Furniture4Fun

6 posts in 697 days


#5 posted 01-08-2015 12:26 PM

Thank you all. It’s a good planer, however if I’d had this knowledge I’d have bought a planer than had adjustable blade height. So I will continue to buy disposable blades sold by DeWalt. Thanks!

View bigblockyeti's profile

bigblockyeti

3668 posts in 1182 days


#6 posted 01-08-2015 01:14 PM

If you have knifes without nicks that need to be ground out and whomever you have sharpening your blades is good, you should be able to get each side sharpened once essentially doubling the life of the blades. You don’t have to stick with just those blades made by DeWalt either, there are other makers that are usually less expensive. If you really want to get away from HSS knives all together, Byrd makes a helical cutterhead for around $400.

View Furniture4Fun's profile

Furniture4Fun

6 posts in 697 days


#7 posted 01-08-2015 01:17 PM

Who else makes blades other than Powertec which I’ve read are of low quality?

View Furniture4Fun's profile

Furniture4Fun

6 posts in 697 days


#8 posted 01-08-2015 01:20 PM

The Byrd stuff looks great but the machine ran me about $400. If I were going to get a helical cutterhead I’d probably go to a larger machine. As a furniture hobbyist the DeWalt is my second planer in 20+ years. The first was a Ridgid which I disliked. I like the DeWalt 734 and would be hard pressed to justify replacing it.

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com