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[photo444]

I just have tried again.
RA: 144*4=576, a1=576*200*32=3686400, 
DEC: 90*6=540, b1=540*200*32=3456000.
The gear ratio: RA=4 DEC=6
From Parked Position (DEC=90) to Mu UMa (41:30) gave my DEC reading of 56:00
The controller commanded 48:30 but the mount moved 34:00
From Mu UMa (41:30) to Jupiter (14:48) gave the DEC reading of 38:00
The controller commanded 41:30-14:48=26:42 but the mount moved 56-38=18
Now I pressed PARK to Home Position, DEC reads 90:00.

I entered right gear information (576:1 <- 144, 4 and 540:1 <- 90, 6), it still gives less movements than demands.

The ratio of 4 comes from 60/15, and 6 comes from 90/15.

Paul

[TCWORLD]

Well the good news is that I have worked out why you can't open EQMOD during the AstroEQ configuration using the Arduino Mega - basically I switched to using Processing IDE 2.2.1 and that uses a different serial library which buggers up control of the DTR line (to reset the Arduino). It doesn't affect the AstroEQ boxes I presume because of differences in the bootloader.
Anyway, that will be fixed in the next release of the Utility (over Christmas some time).

Paul, I'm going to have a look with an oscilloscope and the Arduino Mega I have to see if there is anything wrong with the firmware causing your setup to not move the right distance.

[photo444]

Fixing "Can't connect EQMOD' is very useful. It will prevent power cycling of the unit before usage.

I will be looking forward to hearing your finding over Mega 2560 firmware; I am expecting too much this Christmas! 

Many thanks, Tom,
Paul