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Large hole divider - free metalworking plan

Download this plan in PDF (Adobe Acrobat) format with high resolution pictures - Pages 12; 1,69Mb

Large Hole Dividers.jpg
    Make precise items by the measurements given on particular 2D drawings. The measurements are given in millimeters, and the measurements in inches are given in brakes (1 inch = 25, 4 mm).    
   Do not forget to chamfer the edges on items 1,2 and 4. This way you will avoid injuries that can happen on very sharp edges. It should become a rule when you work with metal items that are being made by cutting, milling or turning.       
   The Fixed Holder (item 2) and the Vertical Bar (item 3) have to be tempered in order to harden them and besides that, these two items have to be made out of the quality steel with high hardness.

 Parts List
 Parts List.jpg
 
 


2D DOCUMENTATION

Assembly Drawing
 assembly.gif
 
 1. Bar
 1_Bar.gif
 
 2. Fixed Holder
 2_Fixed Holder.gif
 
 3. Vertical Bar
 3_Vertical Bar.gif
 
 4. Movable Holder
 4_Moving Holder.gif
 
 Standard Parts
 Standard Parts.jpg
 
 ASSEMBLAGE INSTRUCTIONS
 1.  The Bar (item 1) has a thread M8 on one of its ends. Screw the Fixed Holder (item 2) on it, but be careful, not to screw the item until the end – it should not cover the hole with a thread M10 on the same end of the Bar.
 
large_hole_divider_1.jpg
large_hole_divider_2.jpg
 large_hole_divider_3.jpg  
   
 2. Screw the Movable Holder (item 4) in the Handle Man (item 6) and pull this subassembly on the subassembly made in the previous step.
 large_hole_divider_4.jpg  large_hole_divider_5.jpg
 large_hole_divider_6.jpg  
   
  3. Screw the Handle Woman (item 5) on the Vertical Bar (item 3). Then screw this subassembly on the Fixed Holder (item 2 from the subassembly made in the previous step).
 large_hole_divider_7.jpg  large_hole_divider_8.jpg
   
     This subassembly serves to mark the circles on the objects with metal surface; but if you want to mark the circumference on some wood surface, simply put the pencil instead of this subassembly.
 large_hole_divider_9.jpg  large_hole_divider_10.jpg
   
   Instructions for drawing the big circumference   

   Set the distance between the sharp ends of Vertical Bar (item 3) and Movable Holder (item 4) to match the circle radius you planned to draw. After that, tighten up the Handle Man (item 6) to secure that the sharp end will stay at the wanted radius. Stick the sharp end of the Vertical Bar (item 3) into the material. This point will be the center of your circumference, which you need to draw with the sharp end of the Movable Holder (item 4).          
      
 large_hole_divider_11.jpg
   


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