Quote from: i_ron on January 14, 2009, 09:03:49 PM
Better to be safe than sorry....

Butt you could run each at say 1600 and record the output with the same coil

Or you could send a motor and rotor to the PM and/or the defense minister and ask them to run
it up to an over speed condition for you, as to certify it was safe?

Ron

THE PROBLEM IS;

IF THE GOVERNMENT SAYS IT'S SAFE - YOU CAN BE DAMN SURE IT'S NOT LIKE:
THALIDOMIDE,
VACINES,
FLUORIDE,
RENDERED MEAT PROTEIN,
BOVINE GROWTH HORMONE
ETC.

AND ON THE OTHER HAND - IF THEY SAY IT'S DANGEROUS IT'S BECAUSE SOMEONE WHO'S FINANCIAL INTERESTS ARE THREATENED ARE PAYING THEM TO SAY IT - SO IT CAN BE BANNED - LIKE VITAMIN C OR KILLED LIKE NATIVE CANADIANS.

AND THAT'S THE SORRY TRUTH.

QuoteBut you could run each at say 1600 and record the output with the same coil

I_RAN EACH COIL FROM 1400 RPM AND NOTED THE BEST ACCELERATION.

T

@ iRon
How are you getting such clean holes in the Lexan?  Are you using Forstner bits? Coolant? Flame polishing?  or are you just sandwiching your Lexan between a couple of scrap sheets? Enquiring minds want to know.
You are certainly impressing us all with your  wunderbar Schön fabrication skills.

Quote from: derricka on January 14, 2009, 10:21:06 PM
@ iRon
How are you getting such clean holes in the Lexan?  Are you using Forstner bits? Coolant? Flame polishing?  or are you just sandwiching your Lexan between a couple of scrap sheets? Enquiring minds want to know.
You are certainly impressing us all with your  wunderbar Schön fabrication skills.

Thank you! 

Lexan actually machines quite nicely without the chipping and shattering of plexi.

But the secret is the home made mill, lol, I don't have a picture of a lexan disc in the mill but what I
do is go around with a spot drill and mark the 18 holes... then put it in the drill press and spade drill
it, in my case to 1 1/8th... then back in the mill and bore it to the final size with a boring bar and single point tool set to the final size of the 1 1/4 cup plus 3 or 4 thou for clearance...

Aren't you glad you asked? LOL

Ron

PS: Steven... I should have said, I have to ship it air freight so the slots are to make it lighter, OK?

Quote from: i_ron on January 14, 2009, 11:26:30 PM

But the secret is the home made mill, lol

Great picture Ron.
Ditto for a good chuckle, because I also happen to making a home made mill. Four days ago, I bought a compound slide table on sale for 99 bucks at Busy Bee. I am going to bolt this onto my drill press.  If I get really ambitious, I might even bolt on some bicycle gears and a couple of stepper motors I took out of my old inkjet printer.  Dirt cheap CAM (if I succeed!).

Quote from: derricka on January 15, 2009, 01:22:03 AM
Four days ago, I bought a compound slide table on sale for 99 bucks at Busy Bee.

Small world... that slide came from Busy bee, the head is an old Fiat differential, a little more rigid
than a drill press. Hard to compete though now with the price of equipment... my toy lathe that I made
did me for years but last spring I bought a 300 by 914 lathe from House of Tools... wow what a treat!
Less than 3k bux on sale, but I am lucky in that my wife understands the need for more toys...

Good luck

Ron