I was gunna do mine freehand but now realise how important that rest is for a nice grind.
@Ammed_KN6STX4 жыл бұрын
Thank you Rob, for another informative video!!! Keep them coming.👍🏻
@watermain484 жыл бұрын
CBN wheel sure looks like the way to go. Thanks Rob.
@TheThriftyWoodworker4 жыл бұрын
Wow, that was very helpful. Easy to follow and I think I can do this.
@Yhacooljer19823 жыл бұрын
Thanks for this video.. I also use bench grinder to sharpen cuticle nippers, nail cutter..👆😉
@winstonmatthews68152 жыл бұрын
awesome cool insights!
@michaelwilwand80364 жыл бұрын
How about a Japanese chisel that has a hollow grind on the back side. What if you start to get close to the part on the back that is hollowed out?
@FiveFifteen3 жыл бұрын
Hi Rob. Thanks for showing this. Very helpful! Question - I realized after a while that I had the angle set wrong on my honing guide and I had put a 37 degree bevel on the blade of y #4 smoother. Should I start over and regrind it? Can I do anything from this point? I actually have 3 bevels on it now.. the 25-degree original, a 30-degree secondary and this 37-degree tertiary. Thanks for any advice!
@discerningx3375 Жыл бұрын
@RobCosman Do you have any videos on resetting primary bevel on curved chisels? I have a box of damaged chisels (I am a wood carver). While I can reset the bevel freehand, it's never quite right, particularly on a v tool or out cannel gouge). It makes sharpening them time and again more labor intensive. I need a process to reset. Thanks in advance!
@harrisreichenbaum27753 жыл бұрын
Rob - I am repairing some old Stanley 750s. On one of them, a previous owner put a bevel on the back side. When restoring this, would you first regrind the primary bevel and then flatten the back or vice versa? Thank you
@droneforfun53844 жыл бұрын
Hello Rob. Beeing a bit familiar with how the hardening of the steel works, dont you think that you will loose some of the hardening by grinding the chisel dry? the tip becomes very hot which affects the steel. Have you considered this? Or is the idea that when you continue to sharpen the edge with the wet stones you will remove the affected steel? Thank you for excellent videos and craftmanship.
@RobCosmanWoodworking4 жыл бұрын
With no metallurgy background I can only speak from practical experience, no difference in edge retention after the process compared to before.
@scottlouis77854 жыл бұрын
I`ve been fighting getting one of those wheels, I think it`s a loseing battle
@RobCosmanWoodworking4 жыл бұрын
surrender!
@josiahfaulkner703 Жыл бұрын
Wouldn’t that chisel now have a hollow point on its first bevel?
@stevendavis6759 Жыл бұрын
Rob great video what is the brand name of the protractor that you used and where can I buy it?thanks
@laurencelance5864 жыл бұрын
Also works great on plane blades!
@tailspins14 жыл бұрын
Thanks Rob. I have trouble doing the 17 degree chisel with same set up. Any suggestions?
@stevebosun74104 жыл бұрын
Hi Rob, what dia is your CBN wheel. I only have a 6" bench grinder, so I'm concerned about the effect of the concaved face on tip durability. Should I be concerned, or perhaps increase the effective angle by a few degrees, say 27 deg?
@RobCosmanWoodworking4 жыл бұрын
Steve Bosun mine is an 8” wheel, which I definitely recommend. The 6” grinders, like you point out, creates too much of a hollow. I would bump it up to somewhere between 26-28°, depending on the chisel.
@JackMoskowitz4 жыл бұрын
Can you provide a link to the tool rest that you are using, please?
@RobCosmanWoodworking4 жыл бұрын
Jack Moskowitz robcosman.com/products/wolverine-grinding-jig
@michaelsallee75344 жыл бұрын
ouch, don't let the dog have it again. :)
@JeremyB84194 жыл бұрын
What’s the alternative to having a bench grinder? A very low grit stone? Was considering buying a low grit diamond stone.
@RobCosmanWoodworking4 жыл бұрын
possible but takes a while
@jaritiukuvaara93193 жыл бұрын
I used very coarse diamond stone for grinding handplane blades and it took several hours. It was so frustrating that I ended up getting a bench grinder.
@JeremyB84193 жыл бұрын
@@jaritiukuvaara9319 bought a cheap 180/220 grit one from Woodcraft last week. Haven’t tried it out yet, though. Tried with a 330(?) grit one, and took me like 6 hours to still not take it from 25 to 20 degrees.
@jaritiukuvaara93193 жыл бұрын
@@JeremyB8419 I had DMT D8XX 8-inch Dia-Sharp Continuous Diamond - Extra-Extra-Coarse. I was able to return it.
@Driver100114 жыл бұрын
Great demonstration! Does the Wolverine tool rest have angle stops to take the guess work out of it?
@woodworkerroyer84974 жыл бұрын
No. It does come with a plastic guide jig, but as he said, that may not help if the chisel has a taper. Also, their marketing really only shows turning tools, so I'm not sure if the jig even has the correct angles for normal chisels or plane blades.
@Feathercraft2754 жыл бұрын
The angle is affected by the distance of the tool rest from the wheel and the angle of the tool rest, so presets wouldn't really apply. The way Rob did it works and is simple enough that even I can do it. The Wolverine set up is nice for this operation and the lathe work that drove its invention. That said, I wish I had even half of Rob's eye/hand skills when it comes to the grinding and so much more, but I get by and get better.
@LegoMan-cz4mn4 жыл бұрын
How do I flatten the back of a vintage beat up chisel?
@RobCosmanWoodworking4 жыл бұрын
elbow grease and a flat aggressive stone
@mylesjohnston87594 жыл бұрын
The Atoma 140grit diamond stone is a good place to start
@LegoMan-cz4mn4 жыл бұрын
@@mylesjohnston8759 that looks interesting! Its like a metal lapping plate with a layer of tough diamond grit sandpaper, do you have experience with it?
@mylesjohnston87594 жыл бұрын
Lego Man 12345 12345 I do with the slightly less course Atoma. However i hear it is very good. For what your looking for
@LegoMan-cz4mn4 жыл бұрын
@@mylesjohnston8759 I will do some research, thank you!
@casacustoms4 жыл бұрын
So I am confused about stropping. I've been told to never strop chisels and I was told to always strop. What's the right answer?
@RobCosmanWoodworking4 жыл бұрын
I don’t, no need if 20 seconds on the stone produces an edge that you can’t see room for improvement.
@hashimchohan63204 жыл бұрын
hey ! how do you regrind your dull router bits ??
@RobCosmanWoodworking4 жыл бұрын
If and when, I use a flat diamond stone, Trend.
@brucebellows77724 жыл бұрын
Will 3600 rpm ruin the CBN wheel ?
@jasondoust49356 ай бұрын
No. Just keep the pressure light. We used a 3600rpm 8" grinder in a college wood room and it was fine. One of the best things we invested in while I was there, as teenage boys are not nice on chisels and I'd do a lot of re-grinding.
@johngoold12182 жыл бұрын
Who makes that protractor?
@lennyrosen703324 күн бұрын
I have a protractor that looks like Rob's. It is made by General. I got mine at Ace Hardware.
@Keth.S4 жыл бұрын
I was just wondering Rob if you have ever used a whet stone grinder such as tormek for regrinding and sharpening chisels. I have both a bench grinder and tormek have to say the would prefer the tormek, but that's much opinion. Just wondering if you have used them before.
@RobCosmanWoodworking4 жыл бұрын
I find the Tormek too slow for me, i get why folks feel safe using it but my type "A" doesnt fit!
@Keth.S4 жыл бұрын
@@RobCosmanWoodworking I agree with them being slow, but I prefer tormek as I use it for my woodturning tools, leaves them a finer cutting edge. Thanks for the reply