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When to change the blades on a lunchbox planer?

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Forum topic by DocSavage45 posted 03-07-2016 01:38 AM 738 views 0 times favorited 28 replies Add to Favorites Watch
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DocSavage45

7703 posts in 2306 days


03-07-2016 01:38 AM

Topic tags/keywords: question walnut maple planer milling

Hey Lj’s ! another ignorant question. LOL! And I usually get great answers that save me time.

I’ve been using my early model Delta 12 inch lunchbox planer to mostly mill pine and fir in rehabbing construction materials. I’m now seriously into hardwoods that I have gathered or cut from logs.

I was planing some walnut and maple today. Seemed pretty slow going? I was doing many passes to get my resawn lumber smooth and even. Yes I used my joiner as well.

When I attempted to cut a little deeper than my previous passes I ended up with a burn mark from the planer slowing down. Then I backed off.

I have never honed or replaced or sharpened the 12 inch blades. I don’t believe I have a lot of wear and tear on the blades to warrant that BUT I MAY NEED TO DO SO?

Your input regarding this type of planer and blades is appreciated

-- Cau Haus Designs, Thomas J. Tieffenbacher


28 replies so far

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a1Jim

115202 posts in 3040 days


#1 posted 03-07-2016 02:17 AM

Sounds like you already described dull blades Tom, not sure if your blades are reversible, if not sometimes sharpening blades cost more than replacement blades.How often you sharpen blades depends on how good the blades are and what kind of use .It seems that planning soft wood can dull blades even faster.Like all cutting tools it’s important to make sure your blades are clean and free of pitch.

-- http://artisticwoodstudio.com Custom furniture

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TheFridge

5765 posts in 949 days


#2 posted 03-07-2016 02:26 AM

Tear out, cuts not looking as good, or planet laboring. Some of the usual symptoms I go by.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View CharlieK's profile

CharlieK

467 posts in 3256 days


#3 posted 03-07-2016 02:39 AM

HI Tom,

It sounds like it could be dull blades or maybe you were just asking more of that little planer than it has to give!

-- Adjustable Height Workbench Plans http://www.Jack-Bench.com

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DocSavage45

7703 posts in 2306 days


#4 posted 03-07-2016 02:47 AM

Charlie, Jim, Fridge,

I’ve got replacement blades. I’ll have to find them as I purchased them when I bought the planer.

guess I will have to check for how clean the blades are.

I also seem to have dulled my bandsaw blades. LOL!

Thanks!

-- Cau Haus Designs, Thomas J. Tieffenbacher

View PhilBello's profile

PhilBello

389 posts in 1430 days


#5 posted 03-07-2016 02:55 AM

Tom, I have a 12” Makita, the blades on that are reversible, not sure about Delta, I know that if I try to cut deep mine will bind, I just keep making multiple shallow passes, it is a pain, but these machines were not made for more.

-- If you want the rainbow, you got to put up with the rain - Steven Wright

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DocSavage45

7703 posts in 2306 days


#6 posted 03-07-2016 03:18 AM

Hey Phil,

Due to the hours I have not put on the planer I’m thinking your experience suggests although it’s tedious and time consuming there might be some life in the blades.

Thanks!

How is your router doing?

-- Cau Haus Designs, Thomas J. Tieffenbacher

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Monte Pittman

22006 posts in 1801 days


#7 posted 03-07-2016 03:26 AM

I have 7 sets of blades that I change. Running with dull blades wastes time and energy.

-- Mother Nature created it, I just assemble it.

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hotbyte

842 posts in 2439 days


#8 posted 03-07-2016 03:27 AM

On my Ridgid, it would not hold depth even with height lock engaged. They were so dull that trying to plane some oak I guess instead of cutting into wood it pushed the cutter assembly up. Flipped blades and it cut amazingly well.

View USAwoodArt's profile

USAwoodArt

243 posts in 405 days


#9 posted 03-07-2016 03:35 AM

Tom, if you are planing hardwood it will not plane as deep as softer wood. Another factor is the width of the wood you are planing.
I would bet that changing the blades will make a big difference if you have not replaced them previously. It will also be a good learning experience changing them for the first time…and you can have the old blades to clean and practice your sharpening skills.

-- Wood for projects is like a good Fart..."better when you cut it yourself"

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DocSavage45

7703 posts in 2306 days


#10 posted 03-07-2016 03:38 AM

hotbyte,

Thanks!

-- Cau Haus Designs, Thomas J. Tieffenbacher

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DocSavage45

7703 posts in 2306 days


#11 posted 03-07-2016 03:40 AM

Greg,

Sounds like another vote for replace the blades. LOL! And you make a good point for that maintenance regime you were talking about in the other forum topic.

-- Cau Haus Designs, Thomas J. Tieffenbacher

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pintodeluxe

4854 posts in 2276 days


#12 posted 03-07-2016 03:41 AM

When I was running HSS blades, I had to change knives every 250-300 b.f.
Sometimes I would wax the beds and get another run out of them (if they weren’t nicked). I was always surprised that the dull knives didn’t look much different that the new ones.

Imagine the feed roller pushing the lumber through the blade. As the knives get dull the feed rollers have to work harder and harder to force the wood through. Eventually the rollers slip and leave black marks on the boards.

A fresh waxing and new blades always solved my feed problems.
Good luck.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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DocSavage45

7703 posts in 2306 days


#13 posted 03-07-2016 03:42 AM

Monte,

Your the man with the mill. & blades. Another vote for replacement.

Thanks!

-- Cau Haus Designs, Thomas J. Tieffenbacher

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DocSavage45

7703 posts in 2306 days


#14 posted 03-07-2016 03:46 AM

Wille,

Thanks for the experience and the tip!

-- Cau Haus Designs, Thomas J. Tieffenbacher

View gfadvm's profile

gfadvm

14940 posts in 2153 days


#15 posted 03-07-2016 03:57 AM

No one has mentioned it but the SOUND tells me when my blades are dull. It gets exponentially louder when the blades get dull. I do get my “disposable” Ridgid blades sharpened and it costs $25 a set to sharpen (both sides). A new set is $30 BUT my resharpened blades cut better and last longer than new ones.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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