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Forum topic by generic posted 02-25-2015 03:11 AM 860 views 0 times favorited 10 replies Add to Favorites Watch
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generic

103 posts in 1065 days


02-25-2015 03:11 AM

Topic tags/keywords: g1021 planer

I recently picked up a used Grizzly G1021 planer that looked to be in pretty good shape. I went through the manual, checked all the settings, turned the dispoz-blades and tried running some cherry and black walnut through it. What looks like small shallow tearouts in the walnut are amplified in the cherry and it looks/feels rough with protrusions. Looking at the troubleshooting section of the manual, it looks like it is what grizzly calls mechip marks. Knives catching the chips and drag them across the lumber being planed.

I have adjusted the chip deflector as recommended and to one extreme then the other. Nothing seems to get rid of the issue. I have it connected to a HF dust collector, no loose chips on the boards when the exit, quarter turn passes (less than 1/8 – closer to 1/16 passes), sharp knives.

Has anyone had this issue? Any suggestions on a remedy?

Thanks in advance,

Eric


10 replies so far

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generic

103 posts in 1065 days


#1 posted 02-25-2015 03:20 AM

I forgot to include that I have running the wood through in both directions and get the same results. The wood is not highly figured and on my old DC-33 I never had this issue.

Thanks.

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runswithscissors

2192 posts in 1492 days


#2 posted 02-25-2015 04:35 AM

I have seen the phenomenon, and it often means that the chip chute has become clogged with chips, so the DC can’t clear them away. Or it could be the DC hose, or anywhere in the system, like with a full bag.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

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generic

103 posts in 1065 days


#3 posted 02-25-2015 01:18 PM

I have had that myself, but this time there is no backup of chips in the chute.

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firefighterontheside

13520 posts in 1323 days


#4 posted 02-25-2015 01:37 PM

Next I would try cleaning the rollers to make sure they are not sticky and holding onto chips. It may have been used to plane a bunch of pine. It may be that this planer cannot take off as much material without chipping. You may have to make sure to leave enough wood that you can finish up with small passes to clean up the marks.

-- Bill M. "People change, walnut doesn't" by Gene.

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generic

103 posts in 1065 days


#5 posted 02-26-2015 12:20 PM

I checked the rollers. They look clean. As far as the depth of cut, the machine has a limiter on the front that only lets you take up to 1/8” cuts. I am taking approximately 1/16” passes.

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HornedWoodwork

222 posts in 681 days


#6 posted 02-26-2015 04:38 PM

Could it be that your blades are (I know this is insulting but bear with me) installed upside down? Or is it possible that they were installed on top of sawdust on their posts? I’m driving at gaps under the blades that would allow chips to get trapped under them. It’s also possible that they are being blown back up into the column. Is it possible that the dust shoot is getting pressurized when the machine is running? If that is the case the chips would not move away from the column fast enough and could be getting recycled back up into the cut. Or the chips could be bouncing off of the dust chute and recycling that way.

-- Talent, brilliance, and humility are my virtues.

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generic

103 posts in 1065 days


#7 posted 02-27-2015 03:45 AM

I am not insulted at all. I ask the dumb questions all the time. ;) The knives are the quick change blades and I made sure that I blew the slots out before I reinstalled. I know they are installed in the right direction as I installed the first one backwards (wasn’t paying attention) when rotating the blades and had to take it out and flip it. Plus I double checked that last night. As far as chips getting blown up into the column or the chute being pressurized, I don’t know how I would tell. I have it connected to a HF dust collector and never had an issue with my delta DC-33.

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SirIrb

1239 posts in 697 days


#8 posted 02-27-2015 06:31 PM

Want to sell the DC 33? I really have been wanting one.

My guess was covered with your second post. You get the problem running the wood both ways.

-- Don't blame me, I voted for no one.

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generic

103 posts in 1065 days


#9 posted 02-27-2015 06:45 PM

Sorry I advertised it on CL the day after I got this one and it sold within two hours. I would say I should have asked for more, but I got more that I paid for it when I bought it 5 years ago.

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SirIrb

1239 posts in 697 days


#10 posted 02-27-2015 07:00 PM

DAH!

-- Don't blame me, I voted for no one.

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