Page 10 of 11 FirstFirst ... 567891011 LastLast
Results 136 to 150 of 164
  1. #136
    Join Date
    Aug 2011
    Location
    Melbourne
    Posts
    4,763

    Default

    Hopefully I'll get back into it next week. I got sidetracked with a separate side project which I'm happy to have finished.

    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.

  2. #137
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    70
    Posts
    2,999

    Default

    I finally compled the tasks given to me by "a higher authority" in my household...
    So I got back to the Makita scraper and pretty well finished it.
    A couple more adjustments to fiddle with and make a wrist strap for it.
    It works very well and the adjustment is no more inconvenient than the Biax one.
    I ended up scrapping the single screw adjustment as it was not confining the eccenter reliably enough. I was able to cut my dovetail and follow my original 2-screw design that Simon implemented too.
    In retrospect, this is a very doable project but I wish I had taken a bit more care and patience. A few too many "that'll do for a prototype" moments that now annoy me a bit....
    IMG_20220428_161209_201.jpg
    IMG_20220428_164832_367.jpg
    IMG_20220428_180601_404.jpg
    IMG_20220428_180613_030.jpg
    IMG_20220428_180718_818.jpg
    IMG_20220428_180726_707.jpg
    IMG_20220428_183329_625.jpg
    IMG_20220428_183350_993.jpg
    IMG_20220428_183405_775.jpg
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  3. #138
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    70
    Posts
    2,999

    Default

    You beat me to fixing it, Stu. I tried uploading the photos with Tapatalk, but it made a mess and wouldn't let me fix it....
    I've edited the previous message on the laptop and put them in the right order too.
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  4. #139
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    70
    Posts
    2,999

    Default

    If anyone is interested, I'll make same new drawings of what the design should look like, given the 'mistakes' I made.
    The major issue - already addressed by Simon - is my choice of size for the eccentre dovetail and disk: It should be as big as possible within the limitations of the Makita crownwheel construction, not the dimension of the boss on it. That limited everything for me.
    Secondly, the height of the dovetail I made is too shallow for proper fixing of the eccentre bearing pin. It came loose in mine despite the pressfit and Loktite I used. That actually damaged the bearing rollers! I ended up TIG welding it onto the little slide to hold it there reliably.
    Giving it extra height comes at the expense of a thicker spacer plate in the housing. Simon addressed that successfully. Theoretically, that would also allow a steeper angle for the dovetail, which in turn makes the side more robust.
    Lastly, the choice of the donor saw is likely to be important: Simon's model Makita is better designed than mine, though mine is a current model and his is a previous version. The reduce the two thrust plates on the crownwheel to just one - and I have misgivings of that reducing the lifespan.
    My version (and Simon's too, I believe) has variable speed by trigger pressure, but no way of setting the speed nor keeping it running continuously at anything but flat out without a finger on the trigger. Both are a nuisance. I'll try and find an alternative Makita variable speed switch off a different tool. I'll report if I find anything that is a straight swap or simple to fit.
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  5. #140
    Join Date
    Aug 2011
    Location
    Melbourne
    Posts
    4,763

    Default

    Nice work Joe,

    I should get off my butt and finish mine. Too many other distractions!

    Being trigger mounted, the variable speed for our purpose is a total PITA

    Something like a jigsaw rotary speed dial would be the go. I'm not sure if there is room for one in the casing though.

    Next option is just a plug in speed controller.

    Ok, that's it. I'm back in the game. I'll start either today or Monday and wrap this thing up!

    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.

  6. #141
    Join Date
    Aug 2011
    Location
    Melbourne
    Posts
    4,763

    Default

    Joe,

    Also, how did you manage to fit the rubber boot back on after the addition of the spacer?

    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. #142
    Join Date
    Sep 2009
    Location
    Newcastle
    Posts
    290

    Default

    The ozito has a dial for variable speed

    And has a trigger lock on

  8. #143
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    70
    Posts
    2,999

    Default

    Quote Originally Posted by simonl View Post
    Joe,

    Also, how did you manage to fit the rubber boot back on after the addition of the spacer?

    Simon
    I used a little rubber grease on the tight bits. But it fitted on with a little stretch.
    I think it would accommodate 1/4" as well.
    I discovered today that I haven't cut any holes for adjustment yet...
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  9. #144
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    70
    Posts
    2,999

    Default

    Makita uses a little thumb wheel in the trigger on some of their tools to set the speed. I can see lots of those kind of trigger switches on AliExpress.
    I'll take the original switch out in the next few days and see what I can find at either the local Makita service centre or there.
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  10. #145
    Join Date
    Apr 2012
    Location
    Healesville
    Posts
    1,902

    Default speed control

    A possible solution could be to fix the legs of a saddle to the handle at each side of the switch and have a bolt or knob in the centre of the saddle that screws down onto the switch to control the speed?

  11. #146
    Join Date
    Aug 2011
    Location
    Melbourne
    Posts
    4,763

    Default

    Hey guys,

    Soon I'll have to address this variable speed issue as well.

    But, in the meantime I will share my saddle clamp that is mostly done, just need to drill & countersink the hole.

    Big thanks to you Joe for supplying the drawings. I rarely work to drawings, mostly all in my head. But having drawings does make it easier, even with simple workpieces, and following a drawing is fun!

    Cheers,

    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.

  12. #147
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    725

    Default

    Adjustable stoke/wobble assembly is nearly finished, just need to drill and tap 2 holes for adjustment screws and a few other details then I will start work on the blade holder etc. The video shows the assembly in the maximum stroke position (11mm).

    https://youtu.be/cIwPQBDOYc0

  13. #148
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    70
    Posts
    2,999

    Default

    Quote Originally Posted by Techo1 View Post
    Adjustable stoke/wobble assembly is nearly finished, just need to drill and tap 2 holes for adjustment screws and a few other details then I will start work on the blade holder etc. The video shows the assembly in the maximum stroke position (11mm).

    https://youtu.be/cIwPQBDOYc0
    I'd love to see your work! The video is labeled "private" according to YouTube and I can't access it....
    Please make it public.
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  14. #149
    Join Date
    Nov 2017
    Location
    Geelong, Australia
    Age
    55
    Posts
    2,120

    Default

    I can see the video.

    Steve

  15. #150
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    725

    Default

    Quote Originally Posted by OxxAndBert View Post
    I can see the video.

    Steve
    I always have trouble posting photos and videos, it looks like I got it right on the second attempt.

Page 10 of 11 FirstFirst ... 567891011 LastLast

Similar Threads

  1. Biax anyone?
    By jhovel in forum METALWORK GENERAL
    Replies: 0
    Last Post: 29th Oct 2015, 04:37 PM
  2. Biax flaker anyone?
    By jhovel in forum EBAY, GUMTREE, and other off forum sales sites
    Replies: 0
    Last Post: 23rd Jun 2014, 01:58 AM
  3. What's a new Biax worth (to you)?
    By Michael G in forum METALWORK GENERAL
    Replies: 7
    Last Post: 11th Mar 2013, 12:28 PM
  4. Group or link all Group Buys into a sub-forum such as Member Deals
    By Bitslong in forum FORUMS INFO, HELP, DISCUSSION & FEEDBACK
    Replies: 1
    Last Post: 24th Jun 2009, 12:10 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •