BOSS Rapids Clarification-WAS BRIDGETTE

Tim,
First of all, I am extremely impressed that you got your rapid rates up
that high. There will be some worried people pretty soon if we can show
that the Gecko's work reliably at those speeds. This is some seriously
exciting news. This would literally blow the lid off the BOSS retrofit
market, if you could prove repeatability and reliability. The fastest I
have been able to attain with a G201 was 60 IPM.

BUT, there are a couple of clarifications that need to be made first.
The original BOSS machines were not as slow as you mentioned. BOSS
3,4,5 machines all with 1:1 ratio from (motor to screw) were from the
factory with .001" resolution and 120 (thats one hundred and twenty) ipm
rapid rates. The BOSS 6 was a 2:1 ratio and had .0005" resolution with
the same rapids, around 120 ipm. As far as I know they all have 5TPI
leadscrews except for the Europe exports which were metric.

So now we need some clarification about your experiments. First, do you
have 1:1 or 2:1 belt reduction? Second, what "mode" did you get the
fastest speed rates? In other words what do the numbers you posted on
the G210 correspond to? Full step, half step? If you are doing full
step to get these speeds then it kind of defeats the purpose of a
microstepping drive. The way I understand it if you can get it that
fast in full step mode then you should be able to go FASTER in 10x
microstep mode UNLESS you can't output the steprate fast enough. So we
also need to know if you were stalling the motor or running out of
controller speed?

Here are the settings for the BOSS machines. I really need to know
which one you were using.

1:1 Full step = .001"
1:1 Half step = .0005"
1:1 10x Microstepping = .0001"
2:1 Full step = .0005"
2:1 Half step = .00025"
2:1 10x Microstep = .00005" (50 millionths)

Thanks for the info!!!!!!
Joe Vicars