Power scraper from scrap

[Braeden P]

This is going to be a long project I just made the crank shaft this is going to be a very basic power scraper fixed stroke and speed. I used mystery steel for this and it was scary the first part flew out and almost hit me so the second one i drilled the center hole first then face it. The last two pics are the first one the flew out

 

[benmychree]

How much stroke will it have?

 

[Braeden P]

I think 1/2 inch which is big I put a 1/4 inch piece of aluminum to make it off center

 

[benmychree]

I think 1/2 inch which is big I put a 1/4 inch piece of aluminum to make it off center

It will be fine for rough scraping, but not so good for finishing.

 

[rjs44032]

My understanding is that some of the brands of power-scrapers use parts that interchange with some jigsaws. So I would think a good starting point could be to repurpose a used one. I purchased one of these used off Ebay a few months ago shipped for< $35:



Variable speed motor assembly is already done. And reciprocating mechanism could be repurposed to suit proper direction and stroke.

Food for thought.

Best Regards,
Bob

 

[Janderso]

If a guy could change out the cam for different stroke lengths.....

 

[rjs44032]

This one's on Ebay right now here: Makita Jigsaw

Motor end looks similar to some power-scrapers I've seen.

Best Regards,
Bob

 

[Braeden P]

I have 5 dollars so i can’t buy stuff so I have to make it all from what I have and I can’t get a job because I’m 12 so I have to use what I have

 

[Braeden P]

If a guy could change out the cam for different stroke lengths.....

I am going to make one with a 1/4 inch stroke

 

[Janderso]

I am going to make one with a 1/4 inch stroke

Well, if you had to pick a stroke, A finishing stroke of 1/4" is a good option. IMHO