Search found 193 matches

by kaleun96
Sat Jul 18, 2020 9:36 am
Forum: General Discussion Forum and Community Announcements
Topic: On Lockdown
Replies: 252
Views: 17486

Re: On Lockdown

but indeed we don't know the actual overcounting number. But as I say, it's not really important at this time. Whether it's 5% or 10% of the total doesn't change the fact that some states are doing far worse this month than they were last month. It will inflate the mortality rate for those that cou...
by kaleun96
Sat Jul 18, 2020 7:53 am
Forum: General Discussion Forum and Community Announcements
Topic: On Lockdown
Replies: 252
Views: 17486

Re: On Lockdown

Here's another investigative report from the same news agency that uncovered the under-reporting of negatives in Florida. Apparently no matter how people die, as long as they test positive for the virus, they are listed as having died from it. I'd read this in other reports as well but this one is ...
by kaleun96
Fri Jul 17, 2020 2:22 am
Forum: General Discussion Forum and Community Announcements
Topic: On Lockdown
Replies: 252
Views: 17486

Re: On Lockdown

IMO we need to respect the rights of those who don't want to wear masks when they are not sick. If we could only make sick people wear masks I'm sure that would go a long way to curbing the spread but of course the problem is that we can't and don't know across the entire US who is sick and who is ...
by kaleun96
Thu Jul 16, 2020 1:25 pm
Forum: General Discussion Forum and Community Announcements
Topic: On Lockdown
Replies: 252
Views: 17486

Re: On Lockdown

] But all the shutdowns were supposed to do was flatten the curve. We did that. We won. Even if the curve goes as high as before, we still won because that is far lower than the many more who would have died had we let the virus peak naturally, completely overloading the system. I'm curious about y...
by kaleun96
Mon Jul 13, 2020 5:01 am
Forum: Equipment Discussions
Topic: Godox 150W Video LED Light
Replies: 8
Views: 3547

Re: Godox 150W Video LED Light

I did find the output slightly higher with the "snoot" lined with bright aluminum foil than without. However, the "snoot" does not concentrate the output as you indicate, basically just blocks the light from spreading. I gave it another go yesterday, lining the snoot with the aluminium tape again (...
by kaleun96
Sun Jul 12, 2020 3:35 am
Forum: Equipment Discussions
Topic: Godox 150W Video LED Light
Replies: 8
Views: 3547

Re: Godox 150W Video LED Light

Nice to stumble across this thread again as I just picked up the Godox SL-60W. While not as the same as this one, it's good to know Godox's claims hold up and to have some data on the output with different attachments. The "snoot" was a standard black anodized aluminum Bowens type ~200mm snoot with ...
by kaleun96
Mon Jul 06, 2020 1:31 am
Forum: Equipment Discussions
Topic: Trinamic parameter tuning
Replies: 5
Views: 1144

Re: Trinamic parameter tuning

Can the Stallguard value be found by starting low so that the motor stalls and then increasing the vale until it moves? I think I've found that the behaviour is different depending on whether you are going clockwise or anticlockwise! I've noticed this too, one direction runs slightly slower than th...
by kaleun96
Tue May 19, 2020 8:50 am
Forum: Equipment Discussions
Topic: A peek inside the THK KR20
Replies: 6
Views: 769

Re: A peek inside the THK KR20

The THK KR20 linear actuator is not news to many of us. However, it may be interesting to peek inside and see a little of how it is built, especially since disassembling your KR20 just to see what is inside is "not recommended" (for good reasons). http://savazzi.net/photography/THK_KR20_inear_actua...
by kaleun96
Sat May 09, 2020 12:17 am
Forum: General Discussion Forum and Community Announcements
Topic: On Lockdown
Replies: 252
Views: 17486

We will also have empirical data on that, from Brazil and Sweden. I'm not sure how much mitigation there was in either place. Weren't both places essentially business as usual? In any event, a decent model would be able to calculate the historical results in both places, though impact due to variat...
by kaleun96
Fri May 01, 2020 12:48 pm
Forum: General Discussion Forum and Community Announcements
Topic: On Lockdown
Replies: 252
Views: 17486

I may never go back to Starbucks I think you'll be doing yourself a favour! Better yet, buy an espresso machine. They can be a bit pricey but the economics of it are made easy for me living in Stockholm. The average Latte or Flat White will run you $4.50 so it can take less than a year or so before...
by kaleun96
Sat Apr 18, 2020 4:08 am
Forum: Equipment Discussions
Topic: CANON EOS M6 Mark II
Replies: 109
Views: 11646

I got a surface mounting kit awhile back since many of the components I work with are SMD types, so shouldn't have a problem with the setup. Can't recall the StepStick V1.4 layout, is there a SMD resistor, maybe an 0603 or 0805 type? Yeah couple of SMD resistors on there. Let me know if you'd like ...
by kaleun96
Fri Apr 17, 2020 1:13 pm
Forum: Equipment Discussions
Topic: CANON EOS M6 Mark II
Replies: 109
Views: 11646

I started experimenting with the Motion Controller mode of the TMC5160 this week. Wow. Not only is the performance amazing, it seems to be so much easier to control and calibrate than relying on software control (i.e. via SPI). I could plug in some starting values and off it went. Using SPI really i...
by kaleun96
Fri Apr 17, 2020 3:21 am
Forum: Equipment Discussions
Topic: Controlling Motorized rigs - Arduino or Raspberry Pi?
Replies: 11
Views: 2422

GUI: The Arduino is limited in processing power, and graphic libraries to build an on-screen GUI with buttons, sliders etc. are very basic or not available. In practice, the Arduino is usually limited to a text display of 2 or 4 lines. The Pi is a much better choice to build a relatively complex GU...
by kaleun96
Sun Apr 12, 2020 5:18 am
Forum: Equipment Discussions
Topic: Computer screen
Replies: 19
Views: 3408

Re: Computer screen

I bought a new monitor not too long ago and these were the things I was looking for (not an expert on any of this btw): Resolution: QHD (2560x1440) or FHD (1920x1080)? Go for QHD where possible otherwise you'll be looking to upgrade again in a short amount of time. Monitors have come a long way in t...
by kaleun96
Tue Apr 07, 2020 2:32 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Roman Denarius of Hadrian
Replies: 1
Views: 1172

Roman Denarius of Hadrian

A bit different from the usual subjects, I took this quick stack of 12 photos while testing out a setup.

I recommend checking out the high res. version to zoom in on the "flow lines", marks from the die when the coin was struck.
High res. version
Image