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Planer stutters after newly sharpened blade

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Forum topic by Clobby posted 11-08-2016 03:10 PM 846 views 0 times favorited 21 replies Add to Favorites Watch
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Clobby

16 posts in 720 days


11-08-2016 03:10 PM

Topic tags/keywords: planer stutters

I just bought a used planer, that had some knicks in the knives. It worked great other than the knicks, no issues whatsoever. I brought the knives to a tool grinding shop that professionally sharpens all sorts of blades. Got them back, they looked great, not as sharp as my chisels but should do great for the planer I thought.

Long story short, the planer now stutters when planing. It feeds just fine with no blade contact, and I’ve reset the knives height using the included gauge with the planer 3 times. All dust/debris has been cleaned out, no obstructions from what I can see. I’m at a loss.

Could the blades be too dull? No idea what else it could be. I’ve recorded the issue so you can see it yourself, but be aware the audio is loud!

Youtube video

Imgur Link to Pics of result

-- Wood working newbie, IT Pro for 15 years, ask away for computer help to help repay all the noob wood working questions.


21 replies so far

View Redoak49's profile

Redoak49

3530 posts in 2136 days


#1 posted 11-08-2016 03:35 PM

Are the feed rolls slipping. How is the surface finish.

On my planner, DW735, the blades need to be the proper width as there is no adjustment for width like on my 15” planer where you set the paperweight. I think you should measure the blade width as after grinding they may be too narrow.

View Bill White's profile

Bill White

5072 posts in 4108 days


#2 posted 11-08-2016 03:43 PM

+1 on checking the feed rollers. How are they driven? Chain, belt?
Bill

-- bill@magraphics.us

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Clobby

16 posts in 720 days


#3 posted 11-08-2016 03:57 PM

Could the feed rollers work fine when the knives aren’t cutting but it’s just being fed through like in the first pass , but once the cutter head is doing its job start stuttering?

Not sure on whether it’s chain or belt driven, its the same planer as Matthias Wandel uses, just different branding if anyone has any idea.

-- Wood working newbie, IT Pro for 15 years, ask away for computer help to help repay all the noob wood working questions.

View Clobby's profile

Clobby

16 posts in 720 days


#4 posted 11-08-2016 03:58 PM


Are the feed rolls slipping. How is the surface finish.

On my planner, DW735, the blades need to be the proper width as there is no adjustment for width like on my 15” planer where you set the paperweight. I think you should measure the blade width as after grinding they may be too narrow.

- Redoak49

Width as in is it still exactly 12.5” wide? Or you mean the thickness(I think its about 3/16” thick blade). I’m not sure how/why the 12.5” would have an effect, maybe someone can elaborate?

Also, could I only install one knife to see if I can rule out one side of the cutter head, or is that a bad idea?

-- Wood working newbie, IT Pro for 15 years, ask away for computer help to help repay all the noob wood working questions.

View OSU55's profile

OSU55

1866 posts in 2137 days


#5 posted 11-08-2016 05:17 PM

Try cleaning the planer bed with solvent such as mineral spirits and then apply furniture wax (any wax w/o silicone). Sand down any raised metal on the bed – I use 600 grit, then buff with steel wool and wax. I find the bed getting sticky to be much more of an issue than feed rollers, but check them if there is still a problem. I clean the rollers with denatured alcohol.

View Aj2's profile

Aj2

1729 posts in 1946 days


#6 posted 11-08-2016 05:31 PM

Sounds like something is striking the wood in the cutting circle other than the knife edge.
Could be the heal of the bevel?
Are your knives indexed or did you set the knife height?

Aj

-- Aj

View HokieKen's profile

HokieKen

6296 posts in 1286 days


#7 posted 11-08-2016 05:32 PM

This may be a dumb question but, you don’t have the knives in backwards do you?

-- Kenny, SW VA, Go Hokies!!!

View Redoak49's profile

Redoak49

3530 posts in 2136 days


#8 posted 11-08-2016 05:35 PM

Blade length is 12.5, blade thickness 3/16” , and blade width is what. The distance from the locating holes to the tip of the blade is important. If you ground too much off during sharpening then it may not cut properly. In addition all blades need to be the same.

It would be helpful to list the brand and model. This is is always true when asking help on a machine problem.

View mrbob's profile

mrbob

182 posts in 717 days


#9 posted 11-08-2016 06:37 PM



This may be a dumb question but, you don t have the knives in backwards do you?

- HokieKen

Not a bad thought.

View Clobby's profile

Clobby

16 posts in 720 days


#10 posted 11-08-2016 06:43 PM

This may be a dumb question but, you don t have the knives in backwards do you?

- HokieKen

Not a bad thought.

- mrbob

I’m starting to think this honestly, I thought I put them in correctly, but the blades were off for about a week, and I could have put them in backwards. Does the cutterhead spin with or against the direction of the rollers?

-- Wood working newbie, IT Pro for 15 years, ask away for computer help to help repay all the noob wood working questions.

View Aj2's profile

Aj2

1729 posts in 1946 days


#11 posted 11-08-2016 07:27 PM

Does the cutterhead spin with or against the direction of the rollers?

- Clobby

Are you sure you want to pursue woodworking on your own?

Aj

-- Aj

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Clobby

16 posts in 720 days


#12 posted 11-08-2016 07:30 PM



Are you sure you want to pursue woodworking on your own?

Aj
- Aj2

Awesome reply mate, very helpful!

-- Wood working newbie, IT Pro for 15 years, ask away for computer help to help repay all the noob wood working questions.

View diverlloyd's profile

diverlloyd

3121 posts in 2005 days


#13 posted 11-08-2016 07:58 PM

Have you checked the blade tightness? The blades should be flat side down.

View Clobby's profile

Clobby

16 posts in 720 days


#14 posted 11-08-2016 07:59 PM

I’ll check on all these suggestions tonight when I get home from work, I have the same planer as Matthias Wandel so I just followed his guide, so after double-checking his site, im 95% sure blades are on correctly, tightened down as much as he said to do, but I’ll double-check all tonight and reply back with what I find.

-- Wood working newbie, IT Pro for 15 years, ask away for computer help to help repay all the noob wood working questions.

View HokieKen's profile

HokieKen

6296 posts in 1286 days


#15 posted 11-08-2016 08:20 PM


Does the cutterhead spin with or against the direction of the rollers?

- Clobby

The cutterhead spins opposite the rollers. The rollers move the board through while the cutterhead turns in the opposite direction to cut against the travel. The flat (unbeveled) face of the knives should be leading in reference to the rotational direction of the cutterhead.

-- Kenny, SW VA, Go Hokies!!!

showing 1 through 15 of 21 replies

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