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  1. #1
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    Default Simso's pan brake

    The PDf file that RC collated and put together has the sketch of the Folders ends which has the 25mm hole at co-ordinates 143,43.

    I had downloaded the autocad files of Simso's folder a long time ago.
    The "Folder end Piece" DXF file (dated 30/3/2007) was sent to laser cutter as downloaded.

    It came back looking good but I noted the 25mm hole seemed to be too low. Upon checking, the DXF file of the folder end piece I have, and which is the file I sent the cutters has the hole at 143,33.

    The other holes are correct.

    Has anyone built it with the holes being at at 143,33...if so any problems other than possibly having to increase canterlever lengths?

    Simso must have changed the folder end DXF file somewhere along the line to have the whole completed Autcad file showing it as 143,43.

  2. #2
    Join Date
    Apr 2009
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    Ballina N.S.W.
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    Default

    Hi eskimo
    I built one of these folders back in 2009, I still have the steel templates that I made up and just checked them, they show the 25mm dia at 143/43. I used the PDF that Richard made up.The folder works OK for the thinner sections.
    Bob

  3. #3
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    Default

    Yes i know Bob that the pdf has it at 43. But the dxf ( autocad) file that Simso posted has it at 33. And that is what i sent to the cutters so they could laser cut the ends. They just import the file into their lasercutter. If i had known the dxf file was incorrect i could have fixed it before they made them...too late now

  4. #4
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    Default

    Bob...what thickness could you fold...1.6 like Simso says?

  5. #5
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    Apr 2009
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    Default

    I found that a full width piece of 1.6mm is asking too much, it does handle 1.0mm. The problem is the angle of the fingers, you cannot get enough clamping pressure and it creeps. That is why I added the back up pieces to my fingers,this helps. If I was to build another one I would reduce the finger angles a lot and make the fingers from much thicker material. This would reduce the ultimate angle obtainable, but I think it would be worth it. When I read your original post I thought that Simso must of made a mistake with the 43 dimension. From memory I did also change the floor height a little as it did not align exactly, I did post about this at the time. I will have to look back at the original build post to find the exact change.
    Bob

  6. #6
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    Default

    Quote Originally Posted by krisfarm View Post
    I found that a full width piece of 1.6mm is asking too much, it does handle 1.0mm. The problem is the angle of the fingers, you cannot get enough clamping pressure and it creeps. That is why I added the back up pieces to my fingers,this helps. If I was to build another one I would reduce the finger angles a lot and make the fingers from much thicker material. This would reduce the ultimate angle obtainable, but I think it would be worth it. When I read your original post I thought that Simso must of made a mistake with the 43 dimension. From memory I did also change the floor height a little as it did not align exactly, I did post about this at the time. I will have to look back at the original build post to find the exact change.
    Bob
    Ta Bob

    I am beefing my build up.
    Ends are out of 16mm....but that hole is in the wrong spot...will keep on going and hope it doesnt affect anything to much that I cant get over.

    Am going to increase all 10mm stuff to 12mm. The finger holding angle across the top is going to be 12mm at least. I will need to get some larger angle and cut it down to suit of course.

    What thickness do you think the fingers should be at at what angle?..I was thinking to make em out of 12mm stuff

  7. #7
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    May 2011
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    Default

    Hi Richard,
    Any chance of some WIP report and pics PLEASE, look forward to reading it.
    Kryn
    To grow old is mandatory, growing up is optional.

  8. #8
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    Default

    My fingers were made out of 10mm I added 8mm backups to the smaller ones. The angle of the fingers is around 42 degrees. The fingers are rebated to add a positive stop and end up only being around 8mm thick. If I were to build it again I would use 16mm plate and look at changing the clamping angle to somewhere around 30-35 degrees. You will have to study the design and see where you can beef it up all round to fold 1.6mm.I have added a couple of pictures from my build, I have others if they help you. Edit I ran out of time so uploaded all the photos.
    Bob
    Attached Images Attached Images

  9. #9
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    Default

    Quote Originally Posted by krisfarm View Post
    My fingers were made out of 10mm I added 8mm backups to the smaller ones. The angle of the fingers is around 42 degrees. The fingers are rebated to add a positive stop and end up only being around 8mm thick. If I were to build it again I would use 16mm plate and look at changing the clamping angle to somewhere around 30-35 degrees. You will have to study the design and see where you can beef it up all round to fold 1.6mm.I have added a couple of pictures from my build, I have others if they help you. Edit I ran out of time so uploaded all the photos.
    Bob
    thanks Bob. I saw the reinforcing on the fingers in your original post in the Sticky.
    guess i will beef those up to.

  10. #10
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    Default

    Quote Originally Posted by KBs PensNmore View Post
    Hi Richard,
    Any chance of some WIP report and pics PLEASE, look forward to reading it.
    Kryn
    this is where i am at...ends & feet ready to weld
    20170324_175223.jpg
    And ready to weld....hopefully with minimal warping

    20170324_175240.jpg

    and for those who are wanting to know. The quote I got to cut the end from 16mm plate was about $106 for 1 off.
    I then asked for two and a new quote came back for $116 for both. Obviously setting up time is the killer, so getting a group buy might be the way to go.

  11. #11
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    Default

    Kryn has asked about the DXF and pdf files.

    I downloaded the autocad files a long time ago when it was posted on the WWF as a "sticky". they are not there now but I can send to anyone who wants them.

    the link to the pdf is available in both threads ie the one on the WWF and here in the MWF and was put there by RC a long time ago.
    here is that link.

    http://users.beagle.com.au/lathefan/panbrake.pdf






  12. #12
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    Default

    Quote Originally Posted by krisfarm View Post
    changing the clamping angle to somewhere around 30-35 degrees. Y
    Bob,
    is this angle of the finger edge or the angle of the finger when clamped onto sheet metal, (which would also mean having to change the position of the angle would it not)

  13. #13
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    [QUOTE=eskimo;1919842]Bob,
    is this angle of the finger edge or the angle of the finger when clamped onto sheet metal, (which would also mean having to change the position of the angle would it not)[/QUO

    The angle that measured is the angle that the angle iron makes with the bed in the clamped position and as the finger is bolted onto the angle iron it is the same. I just measured the angle on the end of the fingers and it is very similar 43 degrees. While I had the bender exposed I had a good look at. I think if you make up the bender and not attach the angle iron piece,then have a look at what angle to set the angle iron at. There is a little bit space but you may have to add a little more or add a triangle web piece in both ends of the angle. You could then set the angle iron to a much steeper angle and with a temporary
    thicker finger attached to check that it lands in correct position on the bed I am sure you would end up with a much better clamping. Hope you can follow my logic.
    Bob

  14. #14
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    Default

    Thanks for that, Eskimo. Have it bookmarked for future reference.
    Kryn
    To grow old is mandatory, growing up is optional.

  15. #15
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    Default

    What's the cost of the steel?


    Sent from my iPhone using Tapatalk

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