With the planer off, I lowered the cutter assembly just low enough that the
infeed roller exerted just a little bit of drag on the board as I manually
pushed it in. I ensured that the board was not tilted upward as I pushed it
When I continued to push it through, it stopped when it reached the outfeed
roller. I had to raise the assembly just under 1/32" to allow the board to
go under the outfeed roller.
Is the outfeed roller supposed to be lower than the infeed roller since the
assumption is that the board is thinner once the blades have removed some
I verified that the bed is coplaner with both the infeed and outfeed tables.
I then inserted my 6' planer sled and verified that it was flat and level.
The inserted board did the same thing: stopped when it hit the outfeed roller.
It needs to be where it will pull the material on through after passing
the cutterhead, yes, but not so low as to be a barrier.
I've never had one of the "lunchbox" small planers so I can't speak for
their precise adjustment processes, but every planer I've ever had or
used has detailed setup instructions that give precise measurements and
steps for adjustments.
They also have the outfeed rollers spring-loaded so to account for the
difference in thickness between taking off a thin shaving vis a vis a
But, the unloaded position has to be high enough the infeed rollers have
enough "oomph" to get it under the outfeed roller so it can do its job;
if it's too low or the infeed doesn't have enough grip, then you can
have the issue.
I've been told these little guys don't have it, but it's also possible
with a "real" planer that the pressure bar is too low and the board will
hit or drag on it.
Another alternative on the cast iron machines I'm used to is that the
rear bed rollers may be too high but I understand these guys don't have
What is the particular planer you have?
On Monday, January 28, 2019 at 12:28:18 AM UTC-5, dpb wrote:
Just to be clear, it's only a barrier with the planer off. When the board is fed into the
planet with the power on, it does not stop at the back roller.
The only adjustment given is an adjustment to prevent tapered cuts by ensuring
that the roller assembly is parallel to the bed in a side-to-side manner.
I will check that, but I don't think that that is what I am curious about. My question
in more about front-to-back.
Again, with the power on, the infeed roller has no problem pushing the board
hard enough for the outfeed roller to grab it. It's only with the power off that I
notice the board stop when it reaches the outfeed roller.
It is probably set up perfectly fine.
Most planer feed rollers are spring loaded and will have some vertical
give to them.
My guess is when you force the board under the front roller, it pushed
the roller up into the spring. When the board meets the back roller,
the difference in height is the amount of upward travel in the from
If you continued to force the board under the back roller, it would
likely raise up to the same height as the front.
"Playing is not something I do at night, it's my function in life"
On Monday, January 28, 2019 at 9:58:14 AM UTC-5, -MIKE- wrote:
Perhaps I'm not explaining my "test" very well. I am not forcing the board
under the front roller in the normal "infeed" sense.
I placed the board on the bed and slid it back and forth under the infeed
roller as I lowered the assembly. As soon as I felt the *slightest* amount
of resistance from the front roller, I stopped lowering the assembly. Like
zero resistance, then a 1/4" turn (1/64") and there's the tiniest bit of
drag. So little drag that all up and down motion is eliminated but I can
still push the board with my pinky.
Then when I push the board in farther, it come to a hard stop at the
I don't think so. I think the difference in height is much more than
Sure, but should I have to *force* it? It no longer takes just a pinky to
the get the board under the outfeed. It takes a considerable amount of full
hand push, so much that if the wheels on the cart weren't locked, I could
push it across the shop.
The outfeed roller is definitely lower than the infeed roller and that is
what my question is. Should it be?
See my response above...how could it possibly function unless it is
lower and by enough to still have sufficient friction force applied to
pull the material on through the planer _EVEN AT THE THICKEST POSSIBLE
I don't know what the limit stop is on these baby planers, it's 1/8" on
my PM180 so the outfeed has to be roughly that much lower or you would
have to adjust it on the fly for every significant cut thickness.
Even the little old Rockwell/Delta Model 13 is 3/32" to the stop bar...
Went and looked and I'd actually forgotten on the Model 13 both are set
the same height, only the compression spring is adjustable.
shows how a planer is designed to work and has some very useful
description of usage that is applicable for any.
Now I don't know about these little guys...well, gargle,gargle...oh!
there actually is a manual! It says right there
"The planer is supplied with planing blades mounted in the cutterhead
and infeed and outfeed rollers adjusted to the correct height."
Ergo, while there's no cross-sectional drawing as in the other manual,
it appears like with the Model 13 the position of the rollers is fixed
and you may/may not have an adjustable pressure spring or it may be
these are fixed, too...
Inspection of the way the thing is constructed should answer the
question, but I'm guessing there is no adjustment provided to change the
Now, here's a kni^h^h^hplaner! :)
It doesn't show the outfeed rollers; you're on your on to adjust as see
fit! I'm almost certain I remember they do have both compression spring
and height adjustment but I'll have go look to be certain; I've not had
to adjust it in years...one advantage of the mass--nothing flimsy to it...
On Monday, January 28, 2019 at 8:30:53 PM UTC-5, dpb wrote:
That's exactly what the manual for my planer says.
The thing is, they might as well have added the words "are supposed to be",
as in "infeed and outfeed rollers *are supposed to be* adjusted to the
That is basically the whole point of my question. I know what the manual
says but I don't if the guy/gal who put mine together did it right. Since I
don't know squat about planers, I have no idea if the engineer's idea of
"the correct height" is what my planer is actually set at. What does
"correct height" mean - both rollers the same distance from the bed or the
outfeed lower then the infeed roller by 1/32"?
In other words, just because mine came out the box the way it did doesn't
mean that it's set up correctly.
There is no adjustment on mine, so either uneven is right or it's screwed
up. That's what I'm trying to determine.
I figured that anyone who had a planer similar to mine (e.g. lunchbox)
could try my simple test and let me know what theirs does.
The company I shall call.
On Tuesday, January 29, 2019 at 12:35:18 AM UTC-5, dpb wrote:
Your supposition only holds true if the answer to your question is "yes".
The issue is that I don't know if "it works" or not.
Let's start from the beginning.
This is my first planer and my first use of a planer. I jumped right into
it. I built a planing sled so that I could flatten some twisted boards.
The sled is flat and level, my board is supported so that it doesn't rock.
(The end closest to the planer touching the sled, the far end shimmed and
I marked the full length of the board so that I would know when the entire
length had been planed flat. Supposedly, once all the marks are gone, I
should be able to flip the board over and it should lay completely flat on
the sled. The problem is that when I flip it over, the "far end", the end
that was shimmed, does not touch the sled. There is a gap between the sled
and that end of the board. (It's not the result of snipe. The gap extends
beyond the little area of snipe at the end of the board.)
This happened on 2 different boards, so it's either my technique, my sled,
or my planer. OK, so I made a smaller sled, tried a shorter board and got
the same results. That leaves my technique or the planer. My technique matches
what I've seen on youtube and read about, so I think that leaves my planer.
That's when the I started looking at the planer and seeing what I could
find out. That's when I tried my push test. That's when I found that the
back roller was presenting an obstacle. That's when I posted my question.
Short, already flat boards seem to plane down evenly, but to be honest I
haven't spent a lot of time doing that since I'm trying to flatten the
long twisted boards first and use the thinnest of the resulting boards as
my final thickness. Since one end keeps coming out screwed up, I'm simply
trying to determine what is causing the problem.
Having nothing to compare my planer/technique to, I came here looking for
That's what a planer does. Period. If it does that, it works.
I recommend to get some scrap stock of decent thickness, joint one face
flat and then run it through the planer several times.
It should subsequently measure identically the same thickness at all
If that test works, then there's nothing wrong with the planer itself at
all, everything has to be in the other part of the equation.
But trying to determine if the planer functions correctly with all that
in the mix without knowing it a priori is too many variables to control
to ever come to a conclusion as to the root cause of a problem.
As for whether the design has the outfeed rollers lower than the infeed;
chasing that is a pointless errand if it functions correctly; they will
have been shown to be immaterial.
And, keep the same orientation each pass -- several passes in the same
orientation will let you determine a very small misalignment that isn't
apparent on only one or two by compounding the error each pass. Wider
stock is better test material, too, of course...
On Wednesday, January 30, 2019 at 10:25:52 AM UTC-5, dpb wrote:
If I had a jointer, I would do that.
I'll have to have friend do that for me. Maybe even take the planer to his shop and compare
my results to his.
Nothing will happen until at least next week, so this is going on hold for a few days. Thanks
for the suggestions so far.
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