DIY - CHEAP power scraper

As always, Thanks for watching!

[daveharriman]

I am a retired machine tool fitter of 50 years experience, and I must say your hand scraping is very good indeed, you are not far off with you tecnique, and I love you enthusiasm to learn, your adaption of the saw to make a machine scraper is mindblowing! the stroke is a bit long for me, but you had to work with what ypu've got. My hat's off to you, thankyou for uploading, cheers Dave from the UK

[normesmonde]

Thank you. 55 years I have been a machinist and a trainer and have never encountered anyone as talented as you.

[fredericrike]

As always, Ca Lem, your narratives with little if any dialog are most informative. Also, you continue to amaze us with your ability to salvage wonderful tools and capabilities from what many of us would deem scrap. The refurbishment of the Sawzall was terrific! The tool holder made from a combination of freehand work and careful machining was enlightening. Continued success to you and your family!

[tuksen]

Негода негодует!! Механическое шабрение это техноЕРЕСЬ!!
А по серьезному - отличная приспособа!!

[dalejones]

That’s what I like about you. You are not afraid to try anything and your imagination is roaring. Thanks for sharing

[waiakalulu]

Ca Lem, you are such an inspiration to us all. Your never ending efforts to perfect new skills is something to behold. Thank you so much for these awesome videos! Your hand work and creativity never cease to amaze us. Wishing you great fortune and success in all that you do!

[АлександрКоняхин-пь]

7:43-7:52 I'm a band sawyer! I know the safety rules like my own three fingers! 😜
Exellent work! 👍

[stalthyone]

Robin is a treasure trove of information and I’m glad you’re learning from the best. Keep up the great work Cà Lem!

[jeffreysmith]

This video just changed the value of old reciprocating saws !

[randynovick]

Man, I always enjoy watching your experiments. It's like I can see you learning as you go ... I can almost hear the wheels turning in your head! Very much a pleasure to see. Thank you!

[hinz]

Nice work!
Biax blades are a little bit thinner and have rubber pad where the blade gets screwed in, so if the blade feels to hard, try a thinner blade and put a layer of rubber, like from bicycle tube between blade and the mounting mechanism.

[brettbaldwin]

You're ingenuity and hard work are an inspiration. I'm sure everything in your shop will be scraped to dead flat in short order. You are a truly impressive person.

[chrisburbank]

Just continuously blown away at your skill and innovation. the work quality is awesome! I'm a retired tool and die maker.

[KaneDesign]

Been watching for a while now, love how you show us your learning process and the obstacles you have to overcome. Awesome little power scraper you made :)

[Woloszow]

06:57 - when pressing something in ball bearing, or pressing bearing in hole - always try to not put balls under load when you do it, or lifespan of baering will be shortened. When you put shaft inside of bearing - always force inside ring, do not hammer/press the outside one. And viceversa - when you press bearing into hole, always press against outside ring.

[ScrapDMX]

Hi, Nice ingenious project.
I've tried learning myself scraping too, and even took some classes. I don't know about robin's technique but here are some tips for 'straight' scraping:
- I see recurring lines through the scrape marks in the hand scraping, this can mean your blade has a (micro) chip in the edge, check with a magnifier. The edge needs to be finely ground with a sharp edge. Grind with the wheel rotating into the cutting edge to prevent chipping/fractures, preferably with diamond wheel, and hone with a very fine wheel. Watch out for the grinding dust, it is bad for your health, wear a good mask for very fine dust. Test the cutting edge on your finger nail it should dig in and not slide.
- For normal scraping you can remove(grind) the sharp points from the side of the blade, It prevents you from scratching up the workpiece, and there is no downside (not sure if this is no problem for robin's technique too)
- I don't see any chips being made. Only scraping the blue off does nothing, you should really be able to make chips.
- When running the machine try to have a bit of force down on the blade. For A biax you aim for about 2 KG on the tip if you put it on a scale.
- The blades for the machines also have a bit of spring. If the holder in your machine is too stiff you can mill out a section along the length about 5 - 10 mm wide, perhaps 0, 5 - 1 millimeter deep, maybe it helps.
These are just some tips, hope you have fun learning it. If you want to read about it find the book 'Machine Tool Reconditioning' by Edward F. Connelly (You might be able to find a pdf somewhere online)

[trumanhw]

Beautiful work. Clearly a very very smart guy.
YOU are the kind of guy I wish were coming into the US.

[artmckay]

That old sawsall was so well built! Amazing! I wish that power tools today were as well built as those old timey tools, they lasted forever....
Ca Lem, it is always a pleasure to watch a genius at work! You have an amazing mind and equally amazing skills!
Thank you so much for sharing your work with us. You inspire us all! :)

[gregrutherford]

Being a Machinist myself I look forward seeing what your next project will be thanks for all the great ideas.

[LeeSmith-dxgg]

I’m always just blown away by your talent! You are amazing! Also, thanks for the crash course on how to use the scraper. Keep doing what you do!