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What is a Parallelogram Jointer?

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Forum topic by Bohaiboy posted 10-27-2017 03:38 PM 344 views 0 times favorited 4 replies Add to Favorites Watch
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Bohaiboy

73 posts in 1633 days


10-27-2017 03:38 PM

In layman’s terms vs a non Parallelogram Jointer?

-- Tim, Houston, TX area


4 replies so far

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henigail

12 posts in 1676 days


#1 posted 10-27-2017 03:53 PM

Parallelogram makes it easier to adjust the tables and get them coplanar, compared to the old dovetail ways which require shimming. It’s a convenience feature, not a necessity. But given the insignificant additional cost, would be a priority for me if buying a new jointer.

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smitdog

310 posts in 1944 days


#2 posted 10-27-2017 04:05 PM

It refers to how the beds are raised and lowered. A lot of older jointers the beds attach to the jointers by sliding up and down on a dovetail ways or “tracks”. The parallelogram jointer tables are attached basically by a system of bars on pivot points to the base. It essentially makes it “easier” to level the beds to each other since you shim under the tables at the connection points rather than trying to figure out how to shim the dovetail ways.

Dovetail Ways

VS. Parallelogram

-- Jarrett - Mount Vernon, Ohio

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dubois

36 posts in 1670 days


#3 posted 10-27-2017 04:34 PM

That is interesting. This parallelogram system you often see on old Swedish machines in particular from Jonsereed and Stenberg for example.

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Bohaiboy

73 posts in 1633 days


#4 posted 10-27-2017 04:40 PM

Got it, thanks for the drawing smitdog.

-- Tim, Houston, TX area

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