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  1. #121
    Join Date
    Aug 2010
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    Near Bendigo, Victoria, AUS
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    72
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    This is where I got to last night. I'll cut it off and finish it tonight....
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  2. #122
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    Aug 2010
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    Near Bendigo, Victoria, AUS
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    Quote Originally Posted by simonl View Post
    No problems Joe.

    I haven't made that part yet.

    I see what you mean about the clearance inside the end of the tool.

    I'm going to have to make the attachment part (part that the clamp assembly attaches to) as a part that slides onto the round shaft and extends out a little before terminating into a flat surface that will have the two threaded holes at 10mm centres.

    The other option would be to completely cut/machine off the end shroud part that extends past the oil seal.

    Simon

    Sent from a galaxy far far away
    You saw how I made mine (27/2/22) above, haven't you? I'm going to use the end shroud as a protective cover and additional support for the blade clamp. I hope to have mine going by next weekend.....
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  3. #123
    Join Date
    Aug 2011
    Location
    Melbourne
    Posts
    4,779

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    I just had another look Joe.

    I saw you removed the bottom part to allow room to move.

    I'll be interested to see the finished product.

    Simon

    Sent from a galaxy far far away
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.

  4. #124
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    831

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    This is my candidate for a scraper conversion, it is a 30 year old Milwaukee Sawzall that use a Wobble Shaft to drive the Reciprocating shaft back and forth. I have already done some minor modifications to allow the handle to be flipped over, that is why the lettering on the side is upside down.

    Sawzall.jpg

  5. #125
    Join Date
    Aug 2010
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    Near Bendigo, Victoria, AUS
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    72
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    That's the perfect shape!
    Being as old as that probably means that all the insides are steel rather than powdermetal.
    Good luck and keep photos coming!
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  6. #126
    Join Date
    Aug 2011
    Location
    Melbourne
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    That looks like a little ripper!

    Can't wait to watch your progress.

    My power scraper project will have to wait a week or so. I just come out of hospital to fix a hernia. I. A bit delicate ATM!

    Simon

    Sent from a galaxy far far away
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.

  7. #127
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    Jul 2010
    Location
    Melbourne
    Posts
    9,088

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    A little late on this as you guys seem to be almost there with the insides.
    On mine I used different thread sizes on the adjuster so you know which way you adjusting the stroke(as the slide is at 90 to the travel it doesn't move), but given it would seem your min speed is pretty slow you can likely just watch if your on the four stroke or the back stroke.

  8. #128
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    Aug 2011
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    Melbourne
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    Thats a good point Stu. I hadn't thought of that!

    ATM I have nuts for the spacer as I am yet to make the spacer so I can actually see inside and know which way it's facing.

    I guess I can just buzz the motor slowly and watch the stroke movement to identify which side is which?

    I would have to mark the direction of rotation on the case as well.

    Simon

    Sent from a galaxy far far away
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.

  9. #129
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
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    72
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    You make a very good point, Stew! I think I might use a black grubscrew one one side and a stainless steel grubscrew the other. It would be super annoying accidentally adjusting the pivot the wrong way...
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  10. #130
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    72
    Posts
    3,102

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    Finished my blade holders. Next to mount them on the Makita....
    IMG_20220319_220020_499.jpg IMG_20220319_220006_187.jpg

    Speedy recovery Simon!
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  11. #131
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    Jul 2010
    Location
    Melbourne
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    Perhaps you could add a spring loaded stop that you "run into" that lines things up the way you want them?

    (this assumes, 1. you can run the motor fairly slowly. 2. that the operator isn't an idiot)

  12. #132
    Join Date
    Aug 2011
    Location
    Melbourne
    Posts
    4,779

    Wink

    Quote Originally Posted by Stustoys View Post
    Perhaps you could add a spring loaded stop that you "run into" that lines things up the way you want them?

    (this assumes, 1. you can run the motor fairly slowly. 2. that the operator isn't an idiot)
    First point is manageable.......

    Simon
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.

  13. #133
    Join Date
    Aug 2011
    Location
    Melbourne
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    Quote Originally Posted by jhovel View Post

    Speedy recovery Simon!
    Thanks Joe.

    6 weeks off work and no heavy lifting. It's only day 3 and I'm already going crazy!

    Simon
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.

  14. #134
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    Aug 2011
    Location
    Melbourne
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    I'm just going to write myself a procedure;

    Buzz the motor until it finishes the retracting stoke (all the way in) and then turning both Allen keys to the front increases the stroke.

    Edit: I just looked at my previous photos I posted. The above idea actually won't work. I'll have to buzz the motor until it's halfway along the inward retracting stroke AND then turning the Allen keys rearward increases the stroke.

    What could possibly go wrong?....... Hmmmm. I think I'll organise some kind of visual identification like Joe.

    Simon
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.

  15. #135
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
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    831

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    The first real bit of progress towards turning the old Sawzall into a Scrapezall, a new shaft to replace the fixed angle wobble shaft. The original shaft has a 14 degree angle on the wobble journal that produces 3/4" of reciprocation.
    The new shaft will allow adjustable stroke from zero to about 3/8",if I can reverse engineer all the angles and dimensions required to make the rest of the wobble mechanism, from some scaled up photos I got from the internet.

    Wobble Shafts.jpgWobble Shaft Mounted in Bearing Support.jpg

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