]> 2026-05-26T15:08:17+02:00 Stuertz Infeed - Check GY Position Parallelism 0 en Draft How to check the parallelism of the Stuertz Infeed - GY axis position to backfence Hard 30 minute(s) It is important that the parallelism of the GY axis to the backfence is set and maintained along the length of the rack. This tutorial describes how to check this parallelism without the need for measuring equipment '''General Procedure''' #Find range of adjustment required #Zero GY axis to ensure range adjustment can be met #Move to straight edge resting points, Adjust rollers at these points #Use straight edge between resting points to adjust the other rollers to a fixed datum '''Potential Symptoms of a problem''' *Gripper cannot pick up offcuts *Gripper /profile end forced away from backfence *Accuracy problems *Gripper wobbles after it has released profile Use the laptop to enable you to control the Service screen whilst inside the infeed table <div class="icon-instructions caution-icon"> <div class="icon-instructions-icon"><i class="fa fa-exclamation-triangle"></i></div> <div class="icon-instructions-text">...You will be inside the danger area of the machine - ensure operators are aware of your situation</div> </div> The gripper setting jig is used to give an accurate and reliable zero to locate the gripper jaw to. Any piece of aluminium reinforcing box section will also work <br/> false en Stuertz_Infeed_-_Check_GY_Position_Parallelism_Screenshot_2023-01-31_070146.jpg none #Datum the machine and move GY axis to zero, GZ to 25 #Place the jig against the backfence and offer it up to the Gripper Jaw #If the GY datum is set correctly, the rear outer face of the jig should be just in contact with the rear serrated jaw #If this is not the case, set GY datum correctly If the backfence to gripper is different in this location, it will be visible by a gap or interference to the jig Move GY axis (in 0.25mm increments) to make it touch Log GX value vs the GY value in your table / spreadsheet <br/> There may be areas where the offset changes more than others - these deserve more detailed inspection with closer GX axis increments PASS The error should be within +/- 1mm along the rack In the given example of measurements, the overall range was 0 to +1.5mm Therefor the GY axis datum should be adjusted by+0.75mm so the error range will then be -0.75mm to +0.75mm(within tolerance FAIL If the error variance is outside this range, the backfence will need to be rest to correct this If you have the 2m straight Using the straight-edge, ensure the infeed rollers are 0-1mm behind the machining centre datum rollers . # With the GY at zero, move the GX axis to the last roller before machining centre # Check the gripper position relative to backfence # Check to see if this is within the adjustment range of the infeed roller <br/><div class="icon-instructions info-icon"> <div class="icon-instructions-icon"><i class="fa fa-info-circle"></i></div> <div class="icon-instructions-text">...If the roller has "run out" of adjustment, go back to step 1 and readjust the start point (and GY datum position) to give enough range to get both ends within the range</div> </div><br/> Ensure a zero GY position at datum Move the GX axis to a measure position Move GY axis to locate Log GX value vs the GY value in your table / spreadsheet Repeat for different GX axis positions PASS or FAIL Ensure infeed Datum roller aligns with backfence Find range of Adjustment 2025-03-31T13:05:01Z 2460766.0451505 Stuertz Infeed - Check GY Position Parallelism 0 false false 0 0 0 1 plainlist 3 [[:Dokit:DocOptions]] [[DokitEPIEnable::yes]] Stuertz Infeed - Check GY Position Parallelism# QUERYee7a61aae48f1c3f91d8e4d7736360be 0 0 plainlist 1 [[:Item:Gripper Setting Jig]] Stuertz Infeed - Check GY Position Parallelism# QUERYd6b44f465c878fd4fed882bcb8a0c9ca 0 0 plainlist 1 [[:Item:T0000448 2m Straight Edge]] Stuertz Infeed - Check GY Position Parallelism# QUERYb73c77303e56e459a4033de95f222a31