[vcf-midatlantic] Greenbar printout DONE!

[Dave McGuire]

On 2/28/21 2:02 PM, David Gesswein via vcf-midatlantic wrote:
>> Here are the printers I fought at VCF:
>>
>> Anyone familiar with the Diablo? It powers up, is very clean but the print-head won't budge. I wonder if there is a lock-down for shipping or something I couldn't find...
> 
> Did you try moving by hand with power off? Normally they will move with only
> some resistance when power is off. If not it may be dried oil like others
> said.

   Be very careful when doing this, and if you must do it, only move it 
very slowly.  Like any motor, the stepper motor that moves the head 
carriage will generate voltage when it's turned by hand.  This often 
fries stepper motor drivers.  Slower motion generates less voltage and 
is safer.  I did this accidentally on my pick-and-place machine last year.

               -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA