Homemade sawmill bandsaw blade sharpener DIY plus tips for building one
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- Опубліковано 12 вер 2024
- First part of the video shows the sharpener I just built grinding a blade for the first time, then working properly after some mods. If you're thinking of building one the latter part of the video has some comments on what worked well and tips on what to avoid.
In response to a number of requests I just posted a video with an image of the cam • Cam for homemade bands...
this is the best diy video I have wached for a long time. Everyting is clear and written purely help to who wants to build one. It is like you used high level of empathy skill here.
Great great info. Sometimes images are worth a 1000 words, but in the case of DIY, the words are so important. The descriptions were invaluable! I'm gathering ideas from others to make my own as you probably figured out!
I'm pleased you got some value out of it. I often use youtube and forums to get ideas on how to build or repair things, so this was my way of giving back. Good luck with your build.
Phil, awesome job. After watching this you have convinced me I can do it myself. Thanks Man
Good luck with building a sharpener.
I'm envious of your sawmill.
One thing I have learned after sharping quite a few blades is you should always start sharpening just after the blade join, and do not sharpen over the join. This is because with some blades the tooth spacing over the join is inconsistent which messes up the sharpener.
@@phildiver2225 Good to know, thanks for the info.
Thanks so much for explaining this. I’ll try to make one too. I may use a hand crank to make things easier for me.
Great build, and thanks for sharing the information.
No problem 👍
Thank you for this video
Спасибо! Видео очень информативно и понятно!
Great video ! Just wondering how far your centre hole in cam is from where u bolted on you advance arm ? I have 7/8” pitch blades and can’t get my blade to advance enough thanks
Hi Ryan, I'm out of town this week. I'll measure it when I return home and post a reply.
Have you looked at my other video with closeup of the cam.
Hi Ryan, the advance arm crank pin is 16mm / 5/8" radius (32mm / 1 1/4" diameter) on the cam.
That gives the blade advance arm about 32mm travel, which is more then enough for a 22mm 7/8" pitch blade.
The cam overall is 113mm diameter at the largest point so there is plenty of room if you decided to move the advance arm crank pin out to a larger diameter to get more travel.
This video shows you the cam close up ua-cam.com/video/lu6yb1ZWXwU/v-deo.html
The centre hole is 19mm / 3/4" diameter. The crank pinhole is 8mm / 5/16" diameter.
Thanks Phil appreciate it . I will definitely use these measurements in my build !
I think I am going to attempt this build, I will be using steel for the cam as the environment it will be used in may be very humid and I would be concerned with wood swelling or cracking due to drastic humidity swings. Do you think it would be an easy substitution? Aside from steel being harder to shape than wood
Hi Charles. Nice to hear from you. Yes, steel for the cam would work OK but I think you will find it very difficult to shape accurately. I made my cams out of good quality 9mm (3/8") plywood that was made from some sort of hardwood and it seems very stable. I suggest you consider that type of plywood or maybe a piece of plastic sheet like polyethylene. Good luck with your build.
@@phildiver2225 plastic might be a good alternative or maybe I can find some teak plywood or something. It would be used in the winter in Arkansas and the summer in southeast Alaska, both very damp places. Had intended on powder coating all steel parts to protect from salt environment of Alaska
Hi Phil, I am going to try and build one how far off center is the pusher arm on the cam? Thanks for sharing your build.
The crank pin that drives the pusher arm is 16mm (5/8in) from the centre of the drive hub the cam is mounted on. That gives 32mm travel for the pusher arm. That dimension is not critical provided you have enough travel to push the blade forward then withdraw the pusher back well past the next tooth before the next push forwards. My Blades have 22mm (7/8") tooth pitch so 32mm pusher travels is plenty Good luck with your build. If you need more advice just ask.
Hi Larry. I just had a look at the video of your mill. I'm envious! Mine is a home-made car tire bandsaw mill. It works ok but is very sensitive to even slightly dull Blades which cause it to wander resulting in wavy cuts. Hope you have success making a sharpener. Regards Phil
@@phildiver2225 thank you
I got the plans for the mill from TexasBen5 on youtube the mill is very sturdy and cuts ok But I have to buy the blade guides from Cooks then it should cut very good I keep tearing the bearings out on my homemade guides Thanks again for your help if you want to see pics of the saw mill being built send a friend to me on facebook hundred of pics on the build Might be under Lawrence Downes
👍👍👍
hello I have been building my own sharpener for a few nights already , I am almost done or already done. I am going to post videos later on. But, I have a question. First of all let me tell that I made the cam of metal and I really don't know how, but it worked perfect . I put the center of the arm approximately 16 mm off the center of the motor axle and it gave me the advance that I wanted. So here is m Q ? what determines the advance of the arm? or basically if I want to sharpen blades that have different teeth pace do I have to make a new cam? How i make the cam match the teeth pace? Soooryy if is too much
Hi, I am very impressed that you made it so quickly in a few evenings, but much more impressed that you made a metal cam and got it right first time. Well done. My experience is that I had to make a different cam for each type of blade. I have 2 brands of blade. The tooth profile is only slightly different but I couldn't use the same cam to sharpen both types because one cam didn't fully grind the gullet out. I'd appreciate if you could let me know the link to your video of your sharpener. Thanks
@@phildiver2225 ua-cam.com/video/igbHJ2IQ80c/v-deo.html this a copy of the link for my sharpener, it is not finished yet. However I have a Q: I tried today to sharpen a blade and the machine did not was falling the same way on every teeth , like in some of then was very accurate but on some other felt on top of the tooth and in others off the tooth or far away after the tooth passed the grinding disk. The only reason that I see for this is that the blade is bad quality, I know is Chinese, but on the other hand I was thinking that they must use a machine like this or somewhat similar to make the blade , so no reason for the teeth to be at different distance one from each other. unless they weld the carbide manually.
@@phildiver2225 where can I get grinding disks online?
@@lenador8619 I have purchased aluminium oxide grinding disc's from local suppliers and from AliExpress. It appears in your video that you are sharpening blades with tungsten tips so you might need diamond grit grinding wheels.
Do you have a diagram of the cam you are using for purchase?
Hi, I could trace an outline of the cam and add a scanned image of it if you really want it. However, you need to be aware that the cam only suits the tooth profile for the blades I have. Your blade tooth profile is probably different. At 3 min 24 sec in the video I have put guidance on how to make you own cam. Let me know if you still want an image of the cam. Good luck.
brother plz i want imagine i tried lot of times but i failed plz
Just posted a video with an image of the cam ua-cam.com/video/lu6yb1ZWXwU/v-deo.html
Hi phil can please send me video of how you make cam
Hi, I don't have a video of making the cam - only the pics in this video.
I could trace an outline of the cam and add a scanned image of it if you really want it. However, you need to be aware that the cam I made only suit the tooth profile for the blades I have. Your blade tooth profile is probably different. At 3 min 24 sec in the video I have put guidance on how to make you own cam. Good luck.
@@phildiver2225 Hi Phil, your post is awesome, I built a bandsaw blade sharpener based on watching your video, I am having a issue in getting the cam profile correct, would you share with me a scanned image of your cam ? I think I could fine tune one to fit the profile of my blade in the event it wasn't exact, but it sure would get me close to where I need to be.
@@davidlacount2568 Just posted a video with an image of the cam ua-cam.com/video/lu6yb1ZWXwU/v-deo.html
Just posted a video with an image of the cam ua-cam.com/video/lu6yb1ZWXwU/v-deo.html
Excellent, subscribed! If you want more subs, feel free to embed your video on our homemade tools forum; looks like you're one of us :-)
220 a blade , yikes!, 10 pack is 240, not on sale