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Posted: Sat Jan 25, 2014 4:55 pm
by keakap
dusty wrote:...How about the issue involving the band saw as an SPT? Does anyone still experience the knocking noise (associated as I understand) with rapid speed changes being made by the PowerPro computer. Was this ultimately determined to be nothing more than loose power hubs?
In my case with the band saw, the solution- 100% of the solution- was simple reprogramming, thanks to Wes et all at SS over the phone.
Nothing physical involving anything else.
Posted: Sat Jan 25, 2014 8:16 pm
by charlese
artlinux wrote:Dusty, there seem to be 4 issues I believe:
- Radio Frequency Interference (resolved after some rebuilds)
- Heat related shutdown after extended shaper operation at high speed
- Setscrew loosening in several places due to motor pulses
- Bandsaw issues
These are gathered in my memory from several threads and more details are available there.
GOOD JOB WITH THIS POST, ART! THANKS!:D
artlinux Nailed the 4 issues!!!!\ Art has been reading!
There are no other issues that I know of.
Posted: Sun Jan 26, 2014 1:58 am
by skou
artlinux wrote:Charlese
"My first PowerPro omitted radio interference to AM bands. Therefore I could check if the machine was left on by turning on the car's radio. My re-built PowerPro offers absolutely NO radio interference."
Charlese, I think that might be "emitted."
steve
Posted: Sun Jan 26, 2014 3:36 am
by JPG
charlese wrote:GOOD JOB WITH THIS POST, ART! THANKS!:D
artlinux Nailed the 4 issues!!!!\ Art has been reading!
There are no other issues that I know of.
Weren't there some pulleys with off center holes?
Now I'm confused
Posted: Sun Jan 26, 2014 11:46 am
by drl
As I have posted earlier in another post, I too have the RI problem. So yesterday I took a cheapy Radio Shack battery powered radio into the shop. Absolutely no static or pulsing interference on the AM band what so ever. I turned both radios on. The AC powered radio had the interference and the portable did not. Appears the PP is introducing some AC noise into the line. But that would not explain the other posts about hearing interference in their car radios. So I am dazed and confused. FYI
Regards,
Dwight
Posted: Sun Jan 26, 2014 12:37 pm
by dusty
drl wrote:As I have posted earlier in another post, I too have the RI problem. So yesterday I took a cheapy Radio Shack battery powered radio into the shop. Absolutely no static or pulsing interference on the AM band what so ever. I turned both radios on. The AC powered radio had the interference and the portable did not. Appears the PP is introducing some AC noise into the line. But that would not explain the other posts about hearing interference in their car radios. So I am dazed and confused. FYI
Regards,
Dwight
Maybe you need to check the FM Band.
Battery and AM...no noise
Battery and FM...???
110VAC and AM...noise
110VAC and FM...???
Date?
Posted: Sun Jan 26, 2014 8:02 pm
by danr
drl wrote:As I have posted earlier in another post, I too have the RI problem. So yesterday I took a cheapy Radio Shack battery powered radio into the shop. Absolutely no static or pulsing interference on the AM band what so ever....
Hmmm, what date did you get your PP? Got mine mid 2013 and have interference on all AM radios. SS indicated that they have a partial fix ready. May be that they have it implemented on newer orders and rebuilds.
You did your test on the AM band, right?
Dan
mistakes acknowledged
Posted: Sun Jan 26, 2014 8:44 pm
by charlese
JPG40504 wrote:Weren't there some pulleys with off center holes?
Yes. To my knowledge only two
found out of the total sold. I think maybe both of these were the original shipment. (at least mine was).
----------------------------------------------------------------------------------------------------------------------------------------
Charlese, I think that might be "emitted."
Thank you Steve! What a lot of difference a change of a vowel makes.
Posted: Mon Jan 27, 2014 10:27 am
by drl
Per Dusty's request:
Maybe you need to check the FM Band.
Battery and AM...no noise
Battery and FM...??? No noise
110VAC and AM...noise
110VAC and FM...??? No noise
And to answer Dan's question I purchased my PP July 12, 2012. I chose the complete factory completed headstock upgrade.
Doesn't really clear anything up does it?
Regards,
Dwight
Posted: Mon Jan 27, 2014 12:32 pm
by dusty
drl wrote:Per Dusty's request:
Maybe you need to check the FM Band.
Battery and AM...no noise
Battery and FM...??? No noise
110VAC and AM...noise
110VAC and FM...??? No noise
And to answer Dan's question I purchased my PP July 12, 2012. I chose the complete factory completed headstock upgrade.
Doesn't really clear anything up does it?
Regards,
Dwight
The strange thing about this interference is that some shops seem to be sensitive to conductive emissions (through the 110 VAC connection) while others appear to be sensitive only through radiated emissions (like car radios).
I suspect that the contradictions stem from the fact that there are several (many) people reporting and there are no ground rules for testing. Everyone making the observation a little bit different.