Why is the concentricity different with each installation of the probe? Because your chuck spring clip is not 100% upright. Every time the probe is installed, even if the concentricity is set to 1 wire, there are still deviations when the probe is removed and reinstalled. Note: Option (edge finder) for the entire set How to distinguish the three wires? The red wire is VCC, the black wire is GND, and the white wire is IO. So your chuck is AAA and accuracy (concentricity less than equal to 0.005), as many chucks in China have wrong standards, it is recommended to use a high precision gauge or tungsten steel rod to check the table after installing the chuck. Pay attention to concentricity. Place the dial gauge at a distance of 50 mm from the chuck, which is approximately the distance between that of our probe and the root of the tool handle. › See more product details; Product description Doengdfo Why am I obviously an AAA chuck, and the concentricity is still bad? That's because you bought a virtual label lining. Under normal circumstances, the error cannot exceed 0.02, if the spindle jumps by 0.01, the AAA chuck cannot exceed the cutter and the table tool holder, the error cannot exceed 0.02 and the error must not exceed 0.03. There is a slight angle deviation between the center of the collet and the center of the spindle, which is increased by the length of your tool holder. Usually use a calibration knife to measure the root of a router cutter, and you cannot see a big error, but since the pin of the probe is about 50mm away from the tool holder, the error can be further enlarged. Therefore, be sure to choose high-precision chucks, which is more than a price difference of ten. Type: Color: as picture show Material: Metal Package includes: 1 x Edge Finder Only the above package content, other products are not included. Note:Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.; Product description Doengdfo Why am I obviously an AAA chuck, and the concentricity is still bad? That's because you bought a virtual label lining. Under normal circumstances, the error cannot exceed 0.02, if the spindle jumps by 0.01, the AAA chuck cannot exceed the cutter and the table tool holder, the error cannot exceed 0.02 and the error must not exceed 0.03. There is a slight angle deviation between the center of the collet and the center of the spindle, which is increased by the length of your tool holder. Usually use a calibration knife to measure the root of a router cutter, and you cannot see a big error, but since the pin of the probe is about 50mm away from the tool holder, the error can be further enlarged. Therefore, be sure to choose high-precision chucks, which is more than a price difference of ten. Type: Color: as picture show Material: Metal Package includes: 1 x Edge Finder Only the above package content, other products are not included. Note:Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.; Doengdfo Why am I obviously an AAA chuck, and the concentricity is still bad? That's because you bought a virtual label lining. Under normal circumstances, the error cannot exceed 0.02, if the spindle jumps by 0.01, the AAA chuck cannot exceed the cutter and the table tool holder, the error cannot exceed 0.02 and the error must not exceed 0.03. There is a slight angle deviation between the center of the collet and the center of the spindle, which is increased by the length of your tool holder. Usually use a calibration knife to measure the root of a router cutter, and you cannot see a big error, but since the pin of the probe is about 50mm away from the tool holder, the error can be further enlarged. Therefore, be sure to choose high-precision chucks, which is more than a price difference of ten. Type: Color: as picture show Material: Metal Package includes: 1 x Edge Finder Only the above package content, other products are not included. Note:Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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