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TTTRRRIIIEEEXXX TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,, IIINNNCCC...
PT3 Large Z Axis Ball
Spline Shaft Alignment
Procedure
Document No.: TR106xx Revision: 1.0 Date October 25, 2012
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Revision History
Revision Version Date Author Description 1.0 10/25/2012 J. Maier Created document
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Approvals
Jeff Maier Date
Tim Wright Date
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Table of Contents 1 Purpose ........................................................................................................................................... 5
2 Cause of Misalignment .................................................................................................................... 5
3 Required Tools ................................................................................................................................. 6
4 Alignment Check .............................................................................................................................. 7
5 Alignment Procedure ....................................................................................................................... 8
5.1 Flat Spring Removal .................................................................................................................. 8
5.2 Flat Spring Carriage Removal .................................................................................................. 12
5.3 Z Axis Ball Spline Shaft Alignment ........................................................................................... 18
5.4 Flat Spring Carriage Re-Attachment ........................................................................................ 23
5.5 Flat Spring Re-Attachment ..................................................................................................... 28
6 Final Test ....................................................................................................................................... 32
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
1 Purpose To provide instructions for vertically aligning the PT3 Large Z axis ball spline shaft to prevent binding
while rotating.
2 Cause of Misalignment Repeated use of the locking knob:
Can possibly push the ball spline shaft out of alignment.
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
3 Required Tools The alignment procedure requires a 3mm Allen wrench and a 30mm open ended wrench as shown:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
4 Alignment Check Loosen the locking knob and rotate the carriage a full 360° as shown:
If there is any misalignment present, the rotation will not be smooth and will bind at various points of
rotation. If this is the case, alignment is required.
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
5 Alignment Procedure
5.1 Flat Spring Removal The flat spring which helps to pull the ball spline shaft vertical must be removed. Locate the attachment
screw as follows:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Loosen the attachment screw with a 3mm Allen wrench:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
While loosening the screw, hold the spool the spring is attached to in order to prevent the spring
retracting suddenly as it is under tension. After the screw is removed, the assembly should appear like
this:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Hold the spring spool and allow it to gradually retract fully as shown:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
5.2 Flat Spring Carriage Removal Using the 3mm Allen wrench, loosen and remove the four spring carriage attachment screws as shown:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Page 14
TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Page 15
TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Page 16
TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Slide the spring carriage out as follows:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
5.3 Z Axis Ball Spline Shaft Alignment After removal of the flat spring carriage, the ball spline shaft and clamp are now accessible:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Using the 30mm open end wrench, loosen the large nut holding the clamp and shaft in place:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
The clamp and shaft are now free to move. Grasp the clamp and slide the shaft to approximately the
center of its possible travel:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Rotate the carriage a full 360° as before:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Move the shaft loosened previously and rotate the carriage until the motion is smooth and does not
bind in any portion of the rotation. Once the correct shaft position has been achieved, use the 30mm
wrench to tighten the nut and clamp the shaft in place:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
5.4 Flat Spring Carriage Re-Attachment Replace the flat spring carriage:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Page 25
TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Insert and tighten all four screws with the 3mm Allen wrench:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
5.5 Flat Spring Re-Attachment Unroll a portion of the flat spring and guide it into position as shown:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Pull the end of the flat spring out far enough to insert the screw:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Insert the 3mm Allen wrench into the screw head. Use it to guide the end of the spring back to the block
on the vertical shaft. Be aware that the spring is under tension at this point and will pull upwards.
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Once the screw is in place and the thread started, tighten it all the way down:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
6 Final Test Rotate the carriage a full 360° with the clamp both all the way up and all the way down:
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TTTRRRIIIEEEXXX
TTTEEECCCHHHNNNOOOLLLOOOGGGIIIEEESSS,,,
IIINNNCCC...
8030 Bracken Pl SE
Snoqualmie, WA 98065
www.triextech.com
Verify that carriage rotation is smooth with no binding.