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Page 2 of 2 The parts making up the frame are placed in the assembly fixture.  STRETCHER BARS
The stretcher bars are used to hold everything in position whilst the frame is screwed together.
 FRAME PARTS IN JIG
 STRETCHER BARS ADDED
 FRAME TURNED UPWARDS AND END BOARDS ATTACHED
The end boards are shaped to the contour of the landscape on the completed layout.
 FINISHED FRAMES LINED UP AND LEVELLED
 LEVELLED FRAMES DRILLED FOR JOINING BOLTS
Once the frames have been checked to ensure they are all properly aligned and levelled the holes are drilled for fixing bolts to hold them together. Notice that after the holes have been drilled large washers are attached to the frames. Doing this prevents washers being lost in transit and ensures the wood isn't damaged when tightening the bolts.
 FINISHED FRAMES BOLTED TOGETHER
Notice the patternmakers dowels in the end of each board. These align the sections perfectly when joining two boards together and make it much easier to put the bolts through.
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