Re: Dan Mauch's 3 axis CNC controller board?
Posted by
David A. Forsyth
on 2000-04-10 01:49:09 UTC
On 9 Apr 00 at 7:27, CAD_CAM_EDM_DRO@egroups.com scribbled
furtively:
ppower supplies are cheap and effective, and it really makes your
components last longer, and prevents dry joints over time. 'dry
joints' in this case are caused by the expansion and contraction as
the temperature changes, which moves the leads in the PCB holes and
fatigues the solder till it cracks.
Living in South Africa
Flying power Kites
Chasing 3'6" gauge steam trains
http://www.ru.ac.za/departments/iwr/staff/daf/
furtively:
> Message: 9might I suggest that you fan cool that board? 12 volt fans from PC
> Date: Sat, 8 Apr 2000 22:20:32 -0700
> From: "Glen Benson" <benson@...>
> Subject: Re: Dan Mauch's 3 axis CNC controller board?
>
> Dan from California,
>
> I got one of Dan's 2 amp kits a couple of weeks ago. The assembly went
> very smooth. The only tip I could give is read the instructions and put the
> compnents in in that order. I almost started soldering things at will , that
> would have caused me some grief. One the board is assembled check for the
> correct voltages and adjust the pots. I had motors going within 3 hours if
> starting. The hbridge chips seem to run a little hot but I am using 2 amp
ppower supplies are cheap and effective, and it really makes your
components last longer, and prevents dry joints over time. 'dry
joints' in this case are caused by the expansion and contraction as
the temperature changes, which moves the leads in the PCB holes and
fatigues the solder till it cracks.
> steppers (the limit). If you have any questions feel free to ask. I will be--
> putting my experiences (newbie to CNC) on a website as I go, including my
> PIC DRO project, with plenty of pictures.
Living in South Africa
Flying power Kites
Chasing 3'6" gauge steam trains
http://www.ru.ac.za/departments/iwr/staff/daf/