As a prerequisite for teaching myself to scrape, in this film I make a carbide sharpener by modifying an inexpensive sanding tool. Created by InShot:inshotapp.page.link/YTShare
Hello everyone. In this film we look at the preliminaries to starting scraping. Primarily devising a means to sharpen the carbide scraper blade. To do this I modify a simple sanding machine. Here is the link to Mat Look's channel ruclips.net/video/GlOwwqdX734/видео.html And Impractical Machinist ruclips.net/video/8tCHqWVB7bE/видео.html
That will work. I made one based on Mat Look’s design, what lets is down is the donor grinder, I adopted Stefan Gotteswinters idea of using magnets to hood the diamond disk on the platen and drive pins. I too have a bit of wobble on the disc it can make the grinding a little tiresome. You can use WD40 as a lubricant or IPA helps refine the finish. You will develop you own way, what the aficionados seem to like to see is an absence of scratches in the scrape mark, this is a result of having a finely ground sharp edge to the blade. A wider radius helps when starting out as it’s easier to control.
Hello Tony. Thank you for your kind interest and comments. When I set about looking for a way to sharpen these blades, I wanted something where the method of fixing the diamond discs would be quick and easy and the hard part, ie the angled table, was already there. Also I didn't want the speed to be fixed by a set mechanical ratio. Adapting this simple sander gives me all that. I can also modify the electronics if I find it is too fast. Thank you for your advice on sharpening I will heed it.
Hi Ade. Thank you so much for your kind words. The bench vice is one of two I have. It is an ex MOD world war 2 era Swindens. When I got it, it was in a bit of a state. I refurbished it and painted it up with zinc rich primer then Harrison blue/grey. My other vice is also ex MOD but is a Record. One of the things that attracted me to using this Lidl sander as a carbide sharpener was the vacuum port. Also the built in tilting table and the very quick means of changing the discs over. Essentially it was 90% there. All I needed to do was add the locating feature. Even I could do that!
Hi Carl, they are some nice tools you have there. All my scrapers are manufactured from old files, but I'll be interested to see how the carbide one goes. Great effort on modifying the disk sander. I'm looking forward to seeing the surface gauge unveiled too.
G'day Carl. Great modification, that little tool looks to be ideal for the job. Just two things 1) I believe carbide dust is extremely nasty stuff to breathe, so that vacuum port will come in very handy 2) with the 5 degree bevel, try to arrange it so that the table is sloping the other way, and the grinder is pushing into the cutting edge, rather than off the cutting edge, this will reduce fracturing of the edge and give you a sharper and more durable edge - from everything I've read/heard. Great video. Looking forward to more! (I'm on the same journey) Cheers, Craig
Hello Craig, great to see you and thank you for commenting. Both your points are well made and taken on board. I should have mentioned the vacuum port. It was one of the reasons that attracted me to using the sander. That and the ease of mounting the discs. Also I can modify the electronics to give slower speed but undiminished torque. I should have known about the direction of grinding, thank you for that. The table slopes both ways so easily achievable. Thanks again for your interest and comments.
Came here to mention the potential issues with carbide dust, happy to see it was already addressed. I personally have not done any scrapping since I was an apprentice back in the mid 60's, and even that was only an introduction, so I'm looking forward to getting a refresher :)
@@paulhammond7489 Always great to see you and receive a comment. Understand the issues with carbide dust, thank you for reiterating. I meant to mention the vacuum cleaner port on the sander, it was one of the things that attracted me to modifying it. Thanks again for your interest and support. It may be some time before I get to do any scraping, but rest assured I will get to it. And it won't really be a tutorial, because I know nothing about it!
@@carlwilson1772 It's certainly an art, we were only taught the bare minimum for increasing oil retention on ways on machine tools etc. It was a very brief part of our craft apprentiship. I look forward to watching your progression over time, but you have already built a good foundation regarding tooling for the task.
Great job Carl that MOD Scribing Block must be as rare as Hens Teeth🤣🤣👍👍 Might the cutter shaft be hardened i have come across this in the past, on some??? BFN Kev
Yes I think it will be and as I've now learned the way forward is to try to find a Clarkson holder that will fit my mill(s). Thanks for the comments and interest, it is much appreciated.
I think you might want to tilt your table to the opposite side of 90 degrees. I was recently told that you want to sharpen the carbide from the outside to the middle, as sharpening it the opposite can cause the carbide to chip, even microscopically.
Hello and thank you very much for watching my film and commenting. Thanks for the advice, I've heard this from others now and will most definitely do it that way.
@@carlwilson1772 I just went through a crash course in machine scraping and have been trying to figure out a way to sharpen carbide myself I have an old treadmill motor that can run pretty slow that might be the right candidate.
Nice looking hand scraper, its easier to sharpen the carbide blade whilst its held in the scraper, my first, and several scapers were old hand/flat files with a little forging of the end. I did braze a Stellite bit on a 14" file for heavy duty work. It was many years later i had access to a Sandvik carbide bladed shop made version. Love that surface guage, and great modification of the lidl special. That should work very well 👌 Yes, Mat, of Look Creations does great hand scraping of boh flat and cylindrical geometry
Thanks my friend, as ever your support is much appreciated, as is your knowledge. Mat Look is without doubt the person I would cite as my inspiration in this. I watched all of his films during various periods in isolation during the covid times. Then last year I had the pleasure of finally meeting him and getting to see his shop and machines. He is a true gentleman.
Hello Carl, Interesting video and that seemed to work well... Neil from Nell's mechanical mancave did a similar conversion. I got the same hand scaper from Kurt for my scraping project. I look forward to watching more on this project. It will be interesting to see the turning the between centrer mill cutter. Take care. Paul,,
Paul, thank you so much for your support, I really appreciate it. The sharpening arrangement works well. I'd no idea @Nell's Man Cave did the same. I am not going to try to machine those cutters now. I'm going to try to find a Clarkson chuck that will take them. I will look for an int30 one as I will be using them in my Harrison Mill. I think the Mill drill would have a seizure if I tried. Workhorse though it is. Thanks again!
Hello everyone. In this film we look at the preliminaries to starting scraping. Primarily devising a means to sharpen the carbide scraper blade. To do this I modify a simple sanding machine.
Here is the link to Mat Look's channel
ruclips.net/video/GlOwwqdX734/видео.html
And Impractical Machinist
ruclips.net/video/8tCHqWVB7bE/видео.html
That will work. I made one based on Mat Look’s design, what lets is down is the donor grinder, I adopted Stefan Gotteswinters idea of using magnets to hood the diamond disk on the platen and drive pins. I too have a bit of wobble on the disc it can make the grinding a little tiresome. You can use WD40 as a lubricant or IPA helps refine the finish. You will develop you own way, what the aficionados seem to like to see is an absence of scratches in the scrape mark, this is a result of having a finely ground sharp edge to the blade. A wider radius helps when starting out as it’s easier to control.
Hello Tony. Thank you for your kind interest and comments. When I set about looking for a way to sharpen these blades, I wanted something where the method of fixing the diamond discs would be quick and easy and the hard part, ie the angled table, was already there. Also I didn't want the speed to be fixed by a set mechanical ratio. Adapting this simple sander gives me all that. I can also modify the electronics if I find it is too fast. Thank you for your advice on sharpening I will heed it.
All good ideas there Carl. I cant take my eyes off your bench vice , What a beauty Dust extractor on carbide , nasty stuff for the lungs . Cheers Ade.
Hi Ade. Thank you so much for your kind words. The bench vice is one of two I have. It is an ex MOD world war 2 era Swindens. When I got it, it was in a bit of a state. I refurbished it and painted it up with zinc rich primer then Harrison blue/grey. My other vice is also ex MOD but is a Record. One of the things that attracted me to using this Lidl sander as a carbide sharpener was the vacuum port. Also the built in tilting table and the very quick means of changing the discs over. Essentially it was 90% there. All I needed to do was add the locating feature. Even I could do that!
Thanks Carl, very interesting as usual.
Mitch
Thank you Mitch, it is excellent to hear from you, I hope you are well!
Hi Carl, they are some nice tools you have there. All my scrapers are manufactured from old files, but I'll be interested to see how the carbide one goes. Great effort on modifying the disk sander. I'm looking forward to seeing the surface gauge unveiled too.
G'day Carl. Great modification, that little tool looks to be ideal for the job. Just two things 1) I believe carbide dust is extremely nasty stuff to breathe, so that vacuum port will come in very handy 2) with the 5 degree bevel, try to arrange it so that the table is sloping the other way, and the grinder is pushing into the cutting edge, rather than off the cutting edge, this will reduce fracturing of the edge and give you a sharper and more durable edge - from everything I've read/heard. Great video. Looking forward to more! (I'm on the same journey) Cheers, Craig
Hello Craig, great to see you and thank you for commenting. Both your points are well made and taken on board. I should have mentioned the vacuum port. It was one of the reasons that attracted me to using the sander. That and the ease of mounting the discs. Also I can modify the electronics to give slower speed but undiminished torque. I should have known about the direction of grinding, thank you for that. The table slopes both ways so easily achievable. Thanks again for your interest and comments.
@@carlwilson1772 it will be good to see the electronics modifications. I also take an interest in that kind of work 👍
Came here to mention the potential issues with carbide dust, happy to see it was already addressed. I personally have not done any scrapping since I was an apprentice back in the mid 60's, and even that was only an introduction, so I'm looking forward to getting a refresher :)
@@paulhammond7489 Always great to see you and receive a comment. Understand the issues with carbide dust, thank you for reiterating. I meant to mention the vacuum cleaner port on the sander, it was one of the things that attracted me to modifying it. Thanks again for your interest and support. It may be some time before I get to do any scraping, but rest assured I will get to it. And it won't really be a tutorial, because I know nothing about it!
@@carlwilson1772 It's certainly an art, we were only taught the bare minimum for increasing oil retention on ways on machine tools etc. It was a very brief part of our craft apprentiship. I look forward to watching your progression over time, but you have already built a good foundation regarding tooling for the task.
Hi Carl great video as usual and mod of a Lidl special buy.
Thank you my friend, I'm glad you enjoyed it. Great to see you.
Great job Carl
that MOD Scribing Block must be as rare as Hens Teeth🤣🤣👍👍
Might the cutter shaft be hardened i have come across this in the past, on some???
BFN
Kev
Yes I think it will be and as I've now learned the way forward is to try to find a Clarkson holder that will fit my mill(s). Thanks for the comments and interest, it is much appreciated.
Another interesting vid Carl, the scribing block still looks like some bit of alien tech awaiting resurrection 😆. Keep up the good work.
Thanks Col! I really appreciate your comments and support. The scribing block does look like something unearthed by archaeology!
I think you might want to tilt your table to the opposite side of 90 degrees. I was recently told that you want to sharpen the carbide from the outside to the middle, as sharpening it the opposite can cause the carbide to chip, even microscopically.
Hello and thank you very much for watching my film and commenting. Thanks for the advice, I've heard this from others now and will most definitely do it that way.
@@carlwilson1772 I just went through a crash course in machine scraping and have been trying to figure out a way to sharpen carbide myself I have an old treadmill motor that can run pretty slow that might be the right candidate.
@@MyLilMule Sounds like an excellent plan.
Nice work. We shared this video on our homemade tools forum this week 😎
Thank you for your kind words and for sharing my film. I appreciate it very much indeed.
Nice looking hand scraper, its easier to sharpen the carbide blade whilst its held in the scraper, my first, and several scapers were old hand/flat files with a little forging of the end. I did braze a Stellite bit on a 14" file for heavy duty work. It was many years later i had access to a Sandvik carbide bladed shop made version.
Love that surface guage, and great modification of the lidl special. That should work very well 👌
Yes, Mat, of Look Creations does great hand scraping of boh flat and cylindrical geometry
Thanks my friend, as ever your support is much appreciated, as is your knowledge. Mat Look is without doubt the person I would cite as my inspiration in this. I watched all of his films during various periods in isolation during the covid times. Then last year I had the pleasure of finally meeting him and getting to see his shop and machines. He is a true gentleman.
Hello Carl,
Interesting video and that seemed to work well... Neil from Nell's mechanical mancave did a similar conversion. I got the same hand scaper from Kurt for my scraping project. I look forward to watching more on this project. It will be interesting to see the turning the between centrer mill cutter.
Take care.
Paul,,
Paul, thank you so much for your support, I really appreciate it. The sharpening arrangement works well. I'd no idea @Nell's Man Cave did the same. I am not going to try to machine those cutters now. I'm going to try to find a Clarkson chuck that will take them. I will look for an int30 one as I will be using them in my Harrison Mill. I think the Mill drill would have a seizure if I tried. Workhorse though it is. Thanks again!
Here
I disadvantaged you with the time zone. Good to see you.