8" delta jointer - Woodworking Talk - Woodworkers Forum
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post #1 of 16 Old 08-12-2018, 02:33 PM Thread Starter
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8" delta jointer

Just got an old 8 inch delta jointer. trying to find the small springs in the cutter head that hold up the knives.. springs are about 3/32 in diameter and about 5/8 inch long.. any help in this area is really needed.. Thanks ahead of time Mike
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post #2 of 16 Old 08-12-2018, 02:38 PM
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My local hardware store has what must be two hundred different spring configurations. If Delta doesn't have them does your local hardware store?

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post #3 of 16 Old 08-12-2018, 02:40 PM
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X2 on the hardware store

There is no app for experience
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post #4 of 16 Old 08-13-2018, 12:32 AM Thread Starter
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Nothing like a spring selection in this little towns hardware store.. at least not that small.. small as the lead on a pencil.. diameter is 3/32 outside and 5/8 long.. finally found a 12 inch long spring that is 3/32 dia.. in the united kingdon.. for $4 and $9 shipping. going to try cutting off 6 pieces.. and see if that will work..
Thanks for the comeback, guys
Mike ;-)
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post #5 of 16 Old 08-13-2018, 08:05 AM
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A jointer needs to be balanced. You need to either use actual replacement parts or if you use hardware store springs replace all of them with hardware store springs.
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post #6 of 16 Old 08-13-2018, 09:23 AM
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I would use OEM parts. Look here for your springs.


https://www.ereplacementparts.com/

Don in Murfreesboro, TN.
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post #7 of 16 Old 08-13-2018, 11:11 AM
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Or toss all the springs and use a couple bar magnets to hold the blades while tightening

There is no app for experience
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post #8 of 16 Old 08-13-2018, 01:43 PM Thread Starter
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Ereplacement parts is a great site.. use it all the time.. no such luck on the springs.. tho ;-(
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post #9 of 16 Old 08-13-2018, 01:46 PM Thread Starter
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Thanks will give that a try.. i made a couple of jigs from plywood with magnets.. two magnets on the bed and one for the blade, will give this a try.. ;-)
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post #10 of 16 Old 08-13-2018, 01:47 PM Thread Starter
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Thanks.. there are No springs in the knife head.. any more.. so would install them all if i find them.. they are sure tiny little buggers.. ;-)
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post #11 of 16 Old 08-13-2018, 05:36 PM
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Somebody in it's younger life probably loosened the blades and the springs went flying everywhere, and they resorted to the old way


I have used springs a couple times but they can be a PITA too

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post #12 of 16 Old 08-13-2018, 08:37 PM
where's my table saw?
 
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Here's what I did once

I bought a jointer that had no elevation set screws. I removed the cutterhead and took it to a machine shop where they drilled and tapped for flat head hex screws. You could adjust the screws to change the height of the blade and use the gib screws to secure it.

Cost me about $40.00, and well worth it.

You can have the small holes drilled out to accept larger diameter springs which are more available, OR depending on your machinist skills, do it your self on a drill press with a depth stop.

The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
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post #13 of 16 Old 08-15-2018, 06:36 PM Thread Starter
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pretty new to all this.. using the old method of setting the knives.. (i made a couple of magnetic jigs to hold the blades)..
How high above the knife head or knives should the outfeed table be. an old manual i down loaded said 1/2 inch above the bearing block for the cutter head..
but if i do that.. the blades when bottomed in the cutter head are just a bit above the outfeed table.. maybe about 1/16" above..
so what would be a good gauge or place to start with the outfeed table..
Thanks
Mike.
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post #14 of 16 Old 08-15-2018, 06:37 PM Thread Starter
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with no manuals, so you tube and such.. i fully understand the PITA.. ;-)
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post #15 of 16 Old 08-15-2018, 07:52 PM
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That's way too high ...

The outfeed table when used in that manner, will determine the height above the cutterhead that the knives protrude. They are typically from 1/8" to 3/16" above the cutterhead. Old speaker magnets work well for this purpose since they are very powerful and will hold the blades level with the outfeed table. BUT, you will need the kind that are flush on the bottom/magnetic side.

A flat piece of plywood, MDF, or Plexi with rare earth magnets counter bored in two straight line across, will work also. One line is to hold the blades, the other is to hold it to the table. The Plexi will allow you to see what you are doing when tightening the gib screws if needed.

some articles on setting jointer knives:
http://forums.finewoodworking.com/fi...jointer-knives

If you had the springs this way would work:
https://www.joewoodworker.com/jointerknives1.htm

The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
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post #16 of 16 Old 08-16-2018, 06:59 PM Thread Starter
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These are the Jigs i made... for setting the knives.. found a picture on the internet.. and kind of copied the idea..
"woodnthings" .. and i took your advise and raised the outfeed table almost an 1/8th of an inch above the knives...
I was able to find a part for holding the head at top dead center.. seems to work.. (shown, bright shinny part in the picture)
Getting closer to getting this ole gal running..
Thanks for all our help !!!!
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