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Magnet tech question


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#1 JewelryMonk

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Posted 10 February 2018 - 10:34 AM

I am new here and new to T-Jet tinkering. Question:
What is better, a magnet that is loose in the chassis, or one that is tight? I have noticed a pretty big sweep in chassis and magnet combos.
Thanks in advance.
Doug
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#2 bbr

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Posted 10 February 2018 - 11:08 AM

tight, with even air gap to the armature


Mike Low
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#3 JewelryMonk

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Posted 10 February 2018 - 01:44 PM

Thanks Mike. How do I measure the air gap when it is put together.
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#4 gotboostedvr6

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Posted 10 February 2018 - 02:59 PM

this should do it

 

training-with-visual-aids-radio-news-oct


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#5 Benno - SAC

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Posted 11 February 2018 - 03:47 AM

Thanks Mike. How do I measure the air gap when it is put together.


Use pieces of piano wire with different diameters.
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#6 Klenkes

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Posted 11 February 2018 - 12:06 PM

Magnets should be tight. I use adhesive tape glued to the backside of the magnets. Simply add layer by layer until the magnet is fixed.

Unfortunately you will not be able to measure the air gap once the T-Jet is assembled. You have to open the gearplate to get access.

 

You may find a good instruction how to "finetune" the T-Jets here: https://sites.google...-pancake-part-1


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#7 Mark Johnson

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Posted 29 April 2018 - 01:55 AM

they tech em with a .700 dia slug  dont shoot  for smaller than that 







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