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BG111737201 30/10/2021
Comments (3)

BG111737201 you can always use an L shaped aluminium fence that can accomodate at the top a metal stick on ruler. one example is : . Various lenghts are available but I found that for me 400mm is good enough.

2022-03-03 12:28:16 Helpful (1)
Answers (2)

BG111737201 Irecently received mine and is also not square. I wonder how they mark them as accurate according DIN875/0.

BG891416541 28/12/2021
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BG111737201@JunhanYu ifthe headpiece doesn't sit inside the channels it will never be in the same place in relation to the tracks. So the dimension markers are no longer true and certsinly no guarantee on perpendicularity. the problem is not the groove on the headpiece but the bowing of the track in the sectional plane as it brings the channels closer. In theory one can force tightening the screws on the headpiece but could shear the thread which will render the whole bit useless. Banggood asked me to consider a full refund but I need to confirm the potential cost for return to China from England. It would be much better for them to arrange a collection as it is likely they have a courrier business rate account. I'd much prefer for Banggood to send a pair of track segments as replacement.

BG111737201 17/12/2021
Comments (7)

Q: why doesnt it say din 875 or grade 0 on the square in photo?

Asked by wiked2 on 2020-11-10 06:37:15

BG111737201 It is claimed to be accurate as a lab standard (German standard for precision - watch on YT channel hoodked on wood). However I found for mine to be completely inaccurate.

2021-12-26 05:52:00 Helpful (0)
Answers (4)