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I would certainly replace that ugly flat-head screw on the collet with a proper grub screw.It must really unbalance the rotation and make runout even worse than whatever you get from the sleeve bearing in the motor.
Got this Eshed Scorbot VII from a local college surplus auction.
How are you meant to lock the shaft while tightening the chuck?
Quote from: McBryce on January 07, 2017, 09:41:43 pmHow are you meant to lock the shaft while tightening the chuck?It probably has so little torque that finger-tight is sufficient. Or you could use a pair of needle-nose pliers if you wanted to get it really tight.
Am I getting old? Am I channelling James May ?A Donnegan OptiVISOR (2.5x)
I actually have the same one James May pulled out. Love the Reassembler. Anyway, in the US, you find that particular one in Harbor Freight. It's probably not as good as a genuine Optivisor but it does work, and I need all the help I can get.
Did you get any extra tips?
Quote from: boffin on January 07, 2017, 10:56:42 pmAm I getting old? Am I channelling James May ?A Donnegan OptiVISOR (2.5x)Is there any irony to the fact that the first thing I ended up using it for, was fixing (replacing a screw) on my distance glasses ?
A bottle of flux.
It smells a lot better then my other flux Although.. I suspect the solder might not wet quite as good.Because it was cheap..
I use a pair of slim over the counter ~ 2 diopter glasses in front of my real glasses but part way down my nose - almost like a pair of half moon glasses. It works quite well for the fine stuff - usually on the desk and in the lower segment of the visual field but still allows me to look up (and above the extra pair of glasses ) at the DMM/PSU etc but I am then just looking through my real glasses. With 0603 I get out the microscope.
Quote from: Fortran on January 10, 2017, 12:23:56 pmA bottle of flux. Looks like mouth-wash, make sure you don't swap it!