ShopBot PRSalpha, Инструкция по сборке

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Section 3: Gantry Installation • May 2, 2016
© Copyright 2016 ShopBot Tools, Inc. page 3-6
Mount the X-Axis Stop Blocks and Proximity Targets
Assemble X-axis mechanical stop blocks using the X-axis
mechanical stop, 1/4-20x1/2 Hex Cap Screws, and 1/4-20x3/8
Socket Head Set Screws.
Assemble the X proximity switch targets with the 1/4-20x3/8 Socket
Head Set Screw, T-nut, and 5/16-18x3/4 Hex Cap Screw.
Caution: The mechanical stop blocks will not stop the gantry from rolling off the end of the rails
until the motors have been attached to the end plates. Use caution when rolling gantry near the
end of the rails, or place a clamp at the end of the rails to prevent the gantry from rolling off the
end of the tool.
The X-axis mechanical stop blocks prevent the gantry from leaving the rails. One goes at each end of
both side plates. They must hit on both sides of the gantry at the same time. Orient the bolts vertically
in the top two slots on the side rail. The stop block should just clear the geared track below the rails.
Leave stop blocks loosely attached, they will be adjusted and tightened in Section 10.
The X-axis proximity switch targets provide should be positioned so that the X proximity switch just
clears the stop blocks by 1-2 mm (approximately 1/16”). They should be placed at each end of the
back rail (opposite from the control box side). The targets will be centered under the proximity switch
when the pinion is butted against the stop block.