Hi Mac,
??? Can you provide some details on having the drill start
automatically when the handle is activated?? What did you use?? A
microswitch and a relay?? An aftermarket product?
On 6/25/2023 10:33 AM, mac campshure
via groups.io wrote:
Also I have my drills most set up so when handle is activated the
drill starts and whe n returned it stops and also have foot peddle
with reverse although most have that set as. Auto feature with
activation by stop.
Designing
and building for 50 years
?
I have quite a few serious drill press, B&S turrets ,
single spindle Alzmetal, Burgmaster , and Azuma Radial 10¡±
column .?
They all have vari pulley drive (reeves)or gear drive
with 2 speed motor .?
I would be inclined to use a two speed motor and use a
couple belt changes you only need 4 speeds is way more than
enough.
Two belt changes and high low speed on the motor mor
positive drive system that¡¯s what the big boys do talking
machines of course and a hell of a lot cheaper and problem
free.
Designing
and building for 50 years
?My prior drill press, a Powermatic PM2800B
with a single phase 1 HP motor with mechanical variable
speed with digital readout was nice. ?It was not too
powerful, which was good, but my larger Forstner drill
bits did not stop rotating when cutting wood. ?However,
I wanted a radial drill press where the table stayed
fixed and I could drill holes farther from the edge of
the wood, and I could adjust the distance chuck to wood
without the table shifting side to side like on a
standard drill press.
I went with a 3 phase vintage Delta Turner-Walker style
radial drill press that came with a smaller motor - a
0.5HP 1725 RPM motor.. ?A VFD was added. ?This was
discussed in a prior thread. ?
The VFD makes noise at all times unless the power supply
is turned off, and the larger Forstner bits stop turning
in wood, especially at lower speed.
Plan is to change to a ENC single phase 220V VFD along
with a Marathon 1 HP 1750PRM 3 phase motor. ?A friend
has a similar radial drill press but no VFD and does not
have this issue. He would have to change belts to adjust
speed as the tradeoff. ?I am hoping the upgrade will
give me the needed performance without the need for belt
changes.
When the change is made, I will provide feedback on the
performance.?
--
Michael Garrison Stuber
