Voltmeter confirmed a dead bulb; I went ahead and sacrificed a Jansjo lamp for the cause; an ugly hack but it seems to work just fine! I had to file down the housing to fit - needed about 2 mm on both width and depth, the Jansjo could handle that with no problems. A few parts removed (bulb socket, ...

I'll take one also.

Best,

The latest SOTA wafer lithography machines evidently cost well north of $100M US

Of course you need a backup and probably operate more than one line

Best,

Amazing work, and really like the intended end results for producing meta-materials. Very clever for DIY home-brew photolithography!! He's using a smaller range than the 12 bit DAC can deliver, probably 9~10 bits for driving the Piezo Stage. However doesn't need much range since this is used for pos...

My brother sent this, I just redid with our rations

Best,

During these trying times many are driven to drink or smoke

Stay save and sound.

Best,

JW sent this to me, thought some folks might be interested. Note the use of the Piezo Stage :D First is video 1, be sure and watch 2 & 3. https://www.youtube.com/watch?v=_w0Z2Y5vaAQ https://www.youtube.com/watch?v=MdRwiI6VLmk https://www.youtube.com/watch?v=ebv_9cmLNqo More on the Zeiss S-Planar Len...

Hello Mike, I have been using the YN660 for some years for all my stacks. The only one problem is the cover of the battery :-) Everything else has worked in the perfect way up to now. BTW, I use the flashes 430EXII too but in the ETTL mode (not for macro). BR, ADi Hi, You must have some good really...

I am also quite happy with Godox flashes but not with RF triggers (RF is working fine I think but I do not like the trigger unit). I like and often use optical triggering. Fuji has a great little flash that works without batteries, I wish Sony also has something similar so I do not need to use any ...

Hi Mike, But what about the price :-( You can get YN660 for $70 :-) https://www.ebay.com/itm/YongNuo-YN660-2-4G-Flash-Wireless-Transceiver-Integrated-for-Canon-Nikon-Olympus/262605707354?hash=item3d2485185a:g:urkAAOSwfl9XAztG BR, ADi Maybe you get what's it's worth :shock: Generally when I was usi...

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...

Nice article, I wouldn't think of disassembling these rails, like taking a complex lens apart, way outside my skill level! These THK KR types are likely some of the best performing rails based upon a screw thread and carriage design, and your article shows why. Control these with a Trinamic controll...

Hello Mike, Flash can help with vibration issues yes, at 1/128 of the power you get very short light-impulse (about 1/40000s) so that no vibration can be registered during the exposure. BR, ADi Hi Adalbert, I think if you measure the optical burst output you will find that's it's not a simple recta...

Thanks Mike, very helpful info. I think I will also consider sth. like AD400-600. Since you mentioned continuous light, I actually consider flash mainly because of additional effect of eliminating any vibration. I dont know how to quantify this, just for eliminating any potential vibration in a sim...

I did a test today and also I realized this is mentioned in the manual as over-temperature protection which increases the recycling time. So it is activated after 300 consecutive flashes at 1/16 power, (and 500 at 1/32, and 1000 at 1/64-128-256). The manual says to wait 10 mins to recover from this...