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Planer thickness

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Forum topic by unisaw posted 501 days ago 542 views 0 times favorited 6 replies Add to Favorites Watch
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unisaw

86 posts in 2730 days


501 days ago

I Have a delta 12 1/2 planer and need to plane two 12” red oak boards that I just resaw(ed) to 9/16”. I need to plane to 7/16”. I’ve never used the planer for anything less that 1/2”. Is there a minimum thickness for this planer? Nothing in the manual.

Thanks.


6 replies so far

View Ripthorn's profile

Ripthorn

734 posts in 1582 days


#1 posted 501 days ago

Most planers have a minimum thickness of 1/8”. You should be fine, but if you go too thin or with difficult woods, running it through on a backer board will help prevent potential destruction of the board.

-- Brian T. - Exact science is not an exact science

View Dallas's profile

Dallas

2854 posts in 1084 days


#2 posted 501 days ago

I’m not sure what model Delta you have but my 22-580 will go down to 1/8” easily.

If I want thinner than that I use double stick tape to make the piece thicker.

Look for your plane manual online if you don’t have it….. it should be free somewhere.

I haven’t paid for a manual in years. If I don’t have one with the tool I WILL get one.

-- Improvise.... Adapt...... Overcome!

View PaulJerome's profile

PaulJerome

47 posts in 1630 days


#3 posted 501 days ago

Typically on a lunchbox planer it’s about a 1/4”, however, what i do is use a planer sled. Simply use a nice flat piece of MDF that extends to the length of your infeed and outfeed tables. Put cleats on both ends to secure in place. Simply set the sled in your planer and run your stock as ususal. Works well! Hope this helps.

-- Paul, Central Illinois

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unisaw

86 posts in 2730 days


#4 posted 501 days ago

Great feedback. Time for a sled.

View runswithscissors's profile

runswithscissors

894 posts in 622 days


#5 posted 501 days ago

A reason for having a minimum thickness is that, as they encounter the leading end of the board, the knives tend to lift the wood (one of the reasons, amongst others, for snipe). If the wood is too thin, it can lift and shatter. The feed rollers can’t prevent this because the space between the infeed roller and knives is great enough to allow flexing.

7/16” certainly shouldn’t give you any problems.

View GT350's profile

GT350

265 posts in 578 days


#6 posted 501 days ago

I have a delta 12” and I think it stops at about 1/4”, I have a baseboard so I can go thinner but I have on occasion gotten little pieces flying out at me though. Your 7/16 should be no problem at all.

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