Search found 1496 matches

by RFGuy
Fri Jul 23, 2021 10:56 am
Forum: Woodworking Tool Review
Topic: New Shopsmith DC-6000 Dust Collector
Replies: 219
Views: 13372

Re: New Shopsmith DC-6000 Dust Collector

What would you expect it to look like? Is it not just a squirrel cage blower sized to fit the space available? Dusty, Sorry, I mis-spoke. Technically it is not a squirrel cage blower fan. I was just commenting on how it looks like a standard off-the-shelf blower fan. In other words, it doesn't look...
by RFGuy
Thu Jul 22, 2021 11:43 am
Forum: Maintenance and Repair
Topic: Prem Caster upgrade fail
Replies: 6
Views: 162

Re: Prem Caster upgrade fail

Sorry this happened to you. I haven't had mine that long, but so far mine are doing well. I have to ask when did you have your epoxy floor put in? Was it before/after you put these casters on? Just wondering if one of the chemicals involved in the epoxy floor might have come into contact with the ca...
by RFGuy
Wed Jul 21, 2021 6:55 pm
Forum: Woodworking Tool Review
Topic: A Fixture Board Strategy for Machining Small Parts
Replies: 16
Views: 406

Re: A Fixture Board Strategy for Machining Small Parts

Steve, Thanks. I am really enjoying this thread and seeing some of the ways you have been able to utilize the WoodAnchor system. Since you brought up the ProStop Digital Fence System , I have been eyeing them for some time now. I would very much be interested in getting your opinion on this company/...
by RFGuy
Wed Jul 21, 2021 12:00 pm
Forum: Maintenance and Repair
Topic: New owner questions
Replies: 10
Views: 239

Re: New owner questions

I do live near the coast so it’s always humid, but not so much that it’s salty . I’ll still be sure to keep everything protected though, I’m well familiar with rust damage. It isn't just salty environments. I live in the desert with a fairly dry shop, far from any ocean. I am the original owner of ...
by RFGuy
Wed Jul 21, 2021 9:33 am
Forum: Community
Topic: PowerPro Input Power
Replies: 22
Views: 464

Re: PowerPro Input Power

I haven't designed motor drives, so I will defer to Dennis here. However, I do have some experience with power management circuits, so from my experience what I see in the latest plots from David is what looks like about a 22.5kHz switching harmonic riding on top of the input current waveform (it is...
by RFGuy
Tue Jul 20, 2021 2:40 pm
Forum: Community
Topic: PowerPro Input Power
Replies: 22
Views: 464

Re: PowerPro Input Power

Regardless, the rough calibration seems to indicate that the current measurements are generally valid. So I still can’t figure out why the peak inrush current was only 15A. It didn’t look as if the current probe was saturating, either. I’m probably assuming something about the input circuitry that ...
by RFGuy
Mon Jul 19, 2021 12:23 pm
Forum: Community
Topic: PowerPro Input Power
Replies: 22
Views: 464

Re: PowerPro Input Power

Is this in reference to the discussion on switch arcing ( https://forum.shopsmith.com/viewtopic.php?p=285853#p285853 ) thread? Keep in mind if you are trying to measure in-rush current that probe impedance can affect your ability to capture this transient. The actual transient could be even larger t...
by RFGuy
Mon Jul 19, 2021 11:43 am
Forum: Community
Topic: PowerPro Input Power
Replies: 22
Views: 464

Re: PowerPro Input Power

David,

I always enjoy looking at o-scope plots, particularly color ones like this, but I guess I am missing the goal here. Maybe I missed the relevant thread (or I am just dense), but just curious what you intend to measure on the PowerPro with this setup and why. Intrigued...
by RFGuy
Sun Jul 18, 2021 11:41 am
Forum: Maintenance and Repair
Topic: A detective job for Saturday
Replies: 30
Views: 621

Re: A detective job for Saturday

JPG wrote: Sun Jul 18, 2021 11:36 am Only problem is, some are half wave. :rolleyes: :D
😂
by RFGuy
Sun Jul 18, 2021 11:33 am
Forum: Maintenance and Repair
Topic: A detective job for Saturday
Replies: 30
Views: 621

Re: A detective job for Saturday

Now forum members have become "rectifiers" as well....will the re-definition of technical terms ever end?
;)