on my 8″r/d jointer I can’t get a tight fit for glue up on any piece longer than three feet and the longer the board the larger the gap ,the gap is in the center and tapers to each end any suggestions?
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Replies
Sorry you are not getting any help. Everybody must be out doing something else. You may think I am a butt for what i am going to say next but keep in mine I don't own a power jointer and just use hand planes to joint my planks so I have no actual experience setting up a jointer.
But if I were in your predicament I would:
Read your manual and follow it. No doubt it will help.
No manual? Look up the manual for your machine on line at the site for your manufacturer.
Search the Fine Woodworking data base of magazine articles here. I know there are articles that relate to your problem.
Search these past threads in this chat room. I know there are threads that also will help.
Good Luck !
roc
Give me six hours to chop down a tree and I will spend the first four sharpening the axe. Abraham Lincoln ( 54° shaves )
thank you for getting back to me
len
Your jointer needs to be set up properly and you have to use the correct technique as the operator. How did you set the blades? Did you check the tables for being coplaner? Are you changing your pressure from the infeed to the outfeed table as the board starts to progress? If the tables are parallel, it's usually the height of the blades in relation to the outfeed table. The knives should be a knat's whisker higher than the outfeed table. I set the knives flush and then lower the table just a very slight amount. A blade from a combination square, held on the 8" mark will move 1/16" as I turn the cutterhead.
Beat it to fit / Paint it to match
will try the whisker bit thanks
The jointer looks so simple yet is very technique-dependent. You do have to be very sure that it is set up right but also that you are using it right. It is easy to apply too much pressure to the wood or to put pressure in the wrong place. See the link below for my Jointer Basics story that might have a couple things in it that will help you.
http://www.newwoodworker.com/basic/usejntr.html
Tom Hintz
Because there is always more to learn!
Thanks for the site to look at
Once you verify that the infeed and outfeed tables are co-planer, You need to set the outfeed table to the proper height. It sounds like yours is too low. I use a magnetic jig to accomplish this. You can also use a short piece of flat stock as a jig. Lower the outfeed table so it will not touch the stock. Run the jointer and pass the jig stock over the knives keeping it firmly down on the infeed table. Joint about 8 to 12 inches and then stop. Raise the outfeed table until it touches the piece of stock. I recommend the magnetic jig. remove the springs from behind your jointer knives if so equiped, and re-set the knives with the jig. I find it to be a huge time-saver and produces perfect results every time.
I made the magnet jig ,mags from Radioshack, works great
Thanks
FWW #142 has a jointer tune-up article by John White. You can access it online here if you're an online subscriber. It covers a couple of shop-made aides in addition to the usual tune-up tips, and some techniques for old worn jointers.
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