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Thread: Belt sander

  1. #1
    Nick Jonkman's Avatar
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    Belt sander

    Many years ago I built me a real belt sander. The bed is 4 ft. long and 8 in. wide. The motor is 1 1/2 HP 120 Volt. Actually this was the proto type of about a half dozen I built for others. As you can see you don't have to dis-assemble any thing to replace the belt. The controls are all on the back side. The yoke supporting the movable drum slides on a shaft and a bell crank pulls it in and out via a screw and knob. Also the tracking is controlled by a single screw and knob. Back in the mid 80s I built a spoon rack with a pendulum chime clock in the center of it for my wife who passed away in 86. I swore I would not build anything like that again unless I had a decent belt sander. With this sander I can true up the edge of a board, door, panel or anything else I need sanded square or true or flat. The fence is square to the belt and the vertical cleat is also square to the belt so I can sand the end of pieces by supporting them vertically. I have used up about a 1/2 dozen belts over the years. Most of them finally let go on the joint. By the way I also have graphite cloth cemented to the platen to reduce friction on the belt. I don't know what I would have done without it all the years as I am using constantly.
    You may notice that I used only 3 legs which was OK but found the the stand seemed to have jellyness to it. It would jiggle when you hit the end on the side so I added braces until that was eliminated. Subsequent versions got 2 legs spaced about 6" apart on the end and only 2 braces which solved that problem. They also received a 12 in. disc on the back side with a tilting table. Machine sits on 3 casters so it can be rolled around out of the way.
    By setting the fence at an angle I can feed long boards across it and it will sort of self feed by controlling the speed it pulls on the board.
    Nick
    Belt sander-p1050991.jpg Belt sander-p1050992.jpg

  2. The Following 7 Users Say Thank You to Nick Jonkman For This Useful Post:

    Jon (02-25-2018), LMMasterMariner (02-26-2018), nashty1 (02-26-2018), Paul Jones (02-26-2018), rlm98253 (02-24-2018), rossbotics (02-24-2018), Seedtick (02-24-2018)

  3. #2
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    Outstanding design and build.

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    jjr2001's Tools
    Very nice looking sander.

    Cheers, JR

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    Hi, could you send us some more photos. I made one, but it is not as functional as I expected. Thanks Hentie

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    Jon
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    More for belt sander builders: Homemade Belt Sander

  7. #6
    Nick Jonkman's Avatar
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    Quote Originally Posted by Hentiev View Post
    Hi, could you send us some more photos. I made one, but it is not as functional as I expected. Thanks Hentie
    Here are a few more detail photos as well as a sketch of how it works. It is really fairly simple. Also a picture of the swivels and bell crank template. They are use as a pair with the swivels between them. I should have some of those pieces left unless I threw them in the scrap pile. The bed frame is 1 1/2" angle 1/8" thick The bed is a bent up channel of 16 gauge steel. The tension I did not sketch in as it is fairly obvious. The drums were made from 4" well casing and have a slight crown.
    I also have several bed channels and shields left as well., Nick
    Belt sander-p1060012.jpg Belt sander-p1060014.jpg Belt sander-p1060006.jpg Belt sander-p1060008.jpgBelt sander-p1060018.jpg Belt sander-p1060001.jpg Belt sander-img039.jpg

  8. The Following 3 Users Say Thank You to Nick Jonkman For This Useful Post:

    Jon (02-27-2018), nashty1 (06-17-2018), Paul Jones (02-27-2018)

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    Thanks Nick Jonkman! We've added your Belt Sander to our Sanding category,
    as well as to your builder page: Nick Jonkman's Homemade Tools. Your receipt:





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