I had a worn out slitting saw blade of exactly the thickness I needed. In this video I grind deeper gullets and sharpen the lands to make the saw useable again.
Thanks John! The comment on the photography amazes me, given that I film these with a Samsung A15 phone. Its early days for me doing videos, phone for a camera and freebie software for editing and an ordinary laptop to run the software on!
@@Jan_Raap With care you won't break it! No key on the arbor so if it wants to slip, let it. Listen to the cut and stop the feed if the sound changes... quickly! Use lots of oil or coolant and make sure the gullets don't get clogged, because I'd never do that... yeah, right😳
It's probably more important to keep the teeth on a perfect circle from center than to keep them evenly divided. In fact, it may be better to have them spaced unevenly to avoid resonance and the resultant chatter. It would also help when grinding the teeth to "back up" the sides of the saw blade with thick "washers" on each side to stiffen up the saw and stop it from vibrating while being ground.
Yup, can't disagree with either of your points. I did think at the time about supporting the sides with thick washers as it was singing away (the video doesnt show the worst of it), but was keen to get on with it instead of having to make something else to sharpen this to do the project I needed to get done.
@@tonyray91 Thanks! The unimike was the perfect measuring tool for the radius dresser. I still haven't got round to using the dresser for the project I intended it for!
@@angelramos-2005 I expect they can be saved. HSS doesnt go soft when it goes blue. Its usually a question of how bad are they and how much effort youre willing to put in to bring them back to life. In this case, the saw was the perfect width, I didnt have another sharp one, so it was worth the effort. Thanks for watching!
@@Rustinox Go on! You know you want one🤣. Seriously though, a surface grinder will do all that the tool and cutter grinder will do, and more. Thanks for watching.
If you put the finger on any other tooth (e.g. opposite side) would it make any big difference? With everything ground on the dividing head first I assumed the finger can be put anywhere, so you do not block the view with it.
Hmm, it might work. However, to get every tooth to cut, they all have to have a cutting edge on exactly the same outer diameter. If you're taking a chip load of 1 thou per tooth, you want to be significantly more accurate than 1 thou. Many factors add to the error here and to reduce it the way suggested in the Union Tool & Cutter Grinder manual is to keep the indexing finger close to the edge of the tooth being ground. I'm not disagreeing with your suggestion, but wiser heads than mine might have tried and dismissed it in the past.
Another well put together video Robert, thanks.
Excellent setup, explanation, and results 👌.
Photography was spot on. Thanks for sharing.
Regards John.
Thanks John! The comment on the photography amazes me, given that I film these with a Samsung A15 phone. Its early days for me doing videos, phone for a camera and freebie software for editing and an ordinary laptop to run the software on!
Interesting! I particularly like your mic attachment for the radius dresser. 👍
I need also to add that the pictures are really good and the point of view spot on...
Great video, explanation. Very interesting ang helpful.. Very satisfying to have a very sharp cutter! Thank you for sharing. Quite enjoyable..
Thanks for watching. Glad you found it interesting!
Thanks for explaining the process.
Seems like it is lengthy hard work sharpening a slitting blade I will probably shatter on the first use😅
@@Jan_Raap With care you won't break it! No key on the arbor so if it wants to slip, let it. Listen to the cut and stop the feed if the sound changes... quickly! Use lots of oil or coolant and make sure the gullets don't get clogged, because I'd never do that... yeah, right😳
Mate I have just put you onto my virtual shelf of video encyclopaedias. Looking forward to many more videos from you. This video was great.
@@user-oq7xg8jo5g Thanks. I'm glad you liked it!
It's probably more important to keep the teeth on a perfect circle from center than to keep them evenly divided. In fact, it may be better to have them spaced unevenly to avoid resonance and the resultant chatter. It would also help when grinding the teeth to "back up" the sides of the saw blade with thick "washers" on each side to stiffen up the saw and stop it from vibrating while being ground.
Yup, can't disagree with either of your points. I did think at the time about supporting the sides with thick washers as it was singing away (the video doesnt show the worst of it), but was keen to get on with it instead of having to make something else to sharpen this to do the project I needed to get done.
Wow! A master class, thanks a lot for your time in this vid: it could save it for others👌🖖👍
Very clear, and very expert, and wow!
Nice to see the Unimike fix and the radius dresser coming in to use. Look forward to the next video.
@@tonyray91 Thanks! The unimike was the perfect measuring tool for the radius dresser. I still haven't got round to using the dresser for the project I intended it for!
A fine set of teeth afterwards👌....good enough to make a Hollywood dentist envious 😂
@@howardosborne8647 🤣
Another good video. Thank you Robert. That saw looked to make short work of the material in the demo. Look forward to the next update 👍🇳🇱
@@alungiggs Glad you enjoyed it. There should be something a bit different next week.
I'm not an engineer, but, man you're good.
Indeed! competence in spades.
@@davidcorner1174 Thank you! I do my best, and just like most mortals, sometimes things go wrong😳
Very nice work sir
Thanks v. much!
Good work,Robert.I got a few burnt HSS slitting saws.I just wander if they can be saved.Thank you.
@@angelramos-2005 I expect they can be saved. HSS doesnt go soft when it goes blue. Its usually a question of how bad are they and how much effort youre willing to put in to bring them back to life. In this case, the saw was the perfect width, I didnt have another sharp one, so it was worth the effort. Thanks for watching!
Thanks for the video. Cheers.
@@thigtsquare950 You're welcome!
Very interesting indeed. I suppose now I need a surface grinder...
@@Rustinox Go on! You know you want one🤣. Seriously though, a surface grinder will do all that the tool and cutter grinder will do, and more. Thanks for watching.
Of course you do Rusti, look forward to seeing you restore it on your channel!
I vote for you to get a surface grinder Rusti 👍
good vid as always
@@graedonmunro1793 Thanks! Hopefully my editing is getting better.
If you put the finger on any other tooth (e.g. opposite side) would it make any big difference? With everything ground on the dividing head first I assumed the finger can be put anywhere, so you do not block the view with it.
Hmm, it might work. However, to get every tooth to cut, they all have to have a cutting edge on exactly the same outer diameter. If you're taking a chip load of 1 thou per tooth, you want to be significantly more accurate than 1 thou. Many factors add to the error here and to reduce it the way suggested in the Union Tool & Cutter Grinder manual is to keep the indexing finger close to the edge of the tooth being ground. I'm not disagreeing with your suggestion, but wiser heads than mine might have tried and dismissed it in the past.