How to change Jointer Knives (and make a magnetic jig)

Its finally time to change my jointer knives. I have been putting this off for quite some time. I made a simple magnetic jig to hold the knives at the proper height. It worked pretty well and now my jointer is ready to go and cutting great.
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Please remember when using tools of any type, there is the potential for injury. Work at your own risk, be safe, wear your safety gear, and most of all, have fun!

[@runforrestrun1965]

My little jointer or buzzer as we call them sometimes here in NZ, has little springs below the blade backer so need to be careful not losing them as they can easily fall out and get lost. I use magnets too but mine are rectangular magnets and simply bigger so they span the gap by themselves and reach both the infeed and outfeed tables. Still, even when the new blades are held up, when I tighten the nuts the jointer rotates a bit so it’s not perfect but with patience so far I have found this to work quite well. I double check with a board with two lines marked on it…first line is the edge of the outfeed table, push the board which rotates the blades and see if at top centre the position is at the second line.

[@ralph8309]

Great video. Helped me change my knives much more easily than expected. My planer/jointer is 13 years old and like a couple of others, the three little springs are loose and need to be removed as each blade is removed. Thank you, thank you!

[@NAOSANT]

I have one w springs under the knifes too. Did you get rid of the springs? I want to make this jig and throw out the springs.

[@Marrio49]

I like your homemade magnet jig. Point; as long as you have all three knives at the same height across the table all you have to do to illuminate that snipe was to adjust your outfeed table minutely until there was no snipe. Remember your knives have to be all the same height and parallel to the outfeed table. I’ve done that for over 50 years so I know it works. Best to you

[@costasmedici7078]

Thank you bro for this video, very helpful ,stay warm

[@djmattpositive]

super useful. using your build as template for building a similar jig and inspiration for not throwing (pushing) the machine out a window (into a corner). i know it's been four years since this video was posted but perhaps the next project should have been a woodworkers take on a DIY hands free overhead camera tripod/mount?

[@hoss1003]

Great dedication, with it being that cold in your shop. Next project needs to be a heater.

[@homebuiltshop]

I have a small one but when its single digit temps, it cant keep up. So then I freeze. Lol.

[@KSFWG]

Nice jig to accomplish a sometimes, somewhat difficult task -- made even more difficult when done in freezing temps!

[@homebuiltshop]

It was so cold that day. I think my hands are still frozen. Lol.

[@twoweary]

This is the best video I’ve seen so far on this topic. Thanks for posting. Update 2 years later. I made this jig and it works great. I almost wish I used slightly weaker magnets ( I guess I could have recessed them a bit deeper into the wood, next time). It could be different planers work differently ( I can’t imagine how though). In my experience the knives should always be level with the outfeed table ( as you mentioned).

[@clfields0524]

Great video. I’ve been putting this chore off. Making your jig to assist in getting this done.

[@homebuiltshop]

It seems like everyone puts it off. Its tedious for sure but take your time and you'll get it.

[@MwgaGeorge]

That was a very good jig and fairy easy to make. My knives need to be changed, but always been a bit weary to do it because of the set up for the new knives. But after watching your vid, I'm gonna have a go at it. Thanks for a very informative vid. :)

[@giovannipetitti1588]

Good Idea 👍👏👏👏👏👏👏👏

[@homebuiltshop]

Thanks. It seemed to work good.

[@reynaldovalle1773]

God bless you family and friends .Can you put on a small wood stove there I remember when my shop was cold it isn't Fun☹☹☹ . Keep those videos coming I enjoy him especially the last part .😂😂😂😂👍

[@homebuiltshop]

Thank You. I wish I could install a wood stove. It would be great. The heater I have in there cant keep up when it is single digit temps. Spring is coming.

[@reynaldovalle1773]

@@homebuiltshop I used to have one in my workshop it was Natural Gas and I had it hanging up from the ceiling on the on the wall I bought it at Home Depot we should have best I know how it feels.. you know they have some real small wood stoves maybe you can look into that I don't just a thought so you can keep warm good luck..👍

[@johnhostetter5919]

Great Job!

[@moisesrobles7884]

Thanks for the info

[@justmethenetherlands2218]

if you can fixate the shaft with the planer knives somehow it becomes a lot easier

[@user-lk2cs3ts1b]

Ролик мне пондравился всем большое спасибо,буду так выстовлять ножи.

[@firdausmohd4400]

What kind of glue are you use?

[@bbruuse]

Thank Ya Thank Ya Thank yA I'LL USE THE MAGNETS YEA YEA YEA....

[@chemcody5119]

Nice jig Jeff. Don't you just love working in cold weather?

[@maerck3]

If you didn't snug those blades down or forgot to could one of those blades come flying off when you turn that on?

[@homebuiltshop]

Well my friend, I suppose something bad would happen if you forgot to tighten them up. Hopefully you have the guard back on before you turn it on. I think something would become jammed up pretty quick. I hope I never do that.

[@srairmand]

I think the jig don't have to be that tall. The ones they sell are shorter in height. It would help with installing.

[@tatangmubarok3171]

what is the size of the magnet?

[@js3217]

So why don't you just make the jig with a larger magnet, a larger block of wood, and clamp them in place so the head doesn't move at all while you're re-tightening the bolts?

[@binnsbrian]

Do you sharpen to old ones?

[@homebuiltshop]

You can. I am not going to sharpen these. There are too many nicks in them. I think I'll make a small knife or something from them.

[@HighlineGuitars]

I know what you mean about working around cameras. Drives me crazy sometimes.

[@homebuiltshop]

Me to, I'm usually OK, but this was tedious and the camera was distracting me.

[@RSteve-gd8kj]

Dude, wear your gloves for installation. I’m typing with my middle finger as I had to have 5 stitches on my index finger and cut a slice off my thumb. Tightening knife #2 of 3. Job isn’t finished yet as my hand needs to heal before I very hesitantly will tackle the job. Bummer!

[@TheOrcasRule]

Hmmm.... Now I just need to find some strong magnets laying around...

[@timconnell4570]

Old speakers have magnets and people throw them out all the time 😁

[@philquinn73]

The jig I bought was useless

[@binnsbrian]

Hope you didn't buy it from Jeff. LOL

[@homebuiltshop]

Doh! Sorry about that. P.S. I wasn't really my jig. lol.

[@homebuiltshop]

Did you get one of the pricey models?

[@philquinn73]

@@homebuiltshop it was plastic with 2 metal bars , the plastic pieces had two magnets and adjusted in and out on the bars. The magnets wouldn't hold the knives

[@user-xf8rj4hg3w]

لماذا لا تكون بترجمه فظيوهاتكم إلى اللغه العربيه لأن معظم متابعينك كن من الدول العربية الرجاء اعاده هذا الفديو بالترجمة إلى أن اللغه العربيهWhy don't you translate your rudeness into Arabic, because most of your followers are from Arab countries. Please repeat this video by translating it into Arabic