Search found 80 matches
- Fri Mar 09, 2018 6:22 pm
- Forum: Equipment Discussions
- Topic: Mitutoyo objective lens coins
- Replies: 64
- Views: 15053
dolmadis thank you. yes it is a great learning curve. things are looking really good so far. dolmadis i find with this setup. i am having problems with vibration. this unit is so sensitive. especially at high mag. i think its time to take a page out of husqvarna book. this should help with vibration...
- Sat Mar 03, 2018 6:37 pm
- Forum: Equipment Discussions
- Topic: Mitutoyo objective lens coins
- Replies: 64
- Views: 15053
hey Lin i know your following this. i have mine done complete. i was wondering have you been in touch with the engineer of our little group. if you have tell him i am rolling. i have just received the 2X mitutoyo this week. i have already replaced the bottom element. it is ready to go. Lin ask the e...
- Sat Feb 24, 2018 6:41 pm
- Forum: Equipment Discussions
- Topic: Mitutoyo objective lens coins
- Replies: 64
- Views: 15053
I thought i would try to find this thread. A couple of members and myself from another forum. Have been working on building a home made microscope. I will have mine complete very soon. Just waiting for some more glass to come. My friends are at the same place with with there microscopes. We are very...
- Mon Nov 20, 2017 7:31 pm
- Forum: Equipment Discussions
- Topic: PN150 with beta ring on ebay now
- Replies: 26
- Views: 3481
PN150 at 5x lou would that be possible. I have the 150mm PN. I purchased one from a gentle man in Thailand. This lens is huge and very heavy. He is a great guy to deal with and very honest . I got caught up in a scam earlier this summer. I have noticed that some very high end lens are up for sale on...
- Sat Aug 19, 2017 4:47 pm
- Forum: Equipment Discussions
- Topic: Mitutoyo objective lens coins
- Replies: 64
- Views: 15053
How high voltage can I apply to the VCM? Not sure how much I will need but 12V is not enough. I run 25V with a dropping resistor and it works well. I think they run at rated current without resistor at 13.6V, so I will need to supply that. yes ray that is right. These lights run at 13.6 to 13.7 volt...
- Sun Aug 13, 2017 3:32 pm
- Forum: Equipment Discussions
- Topic: Mitutoyo objective lens coins
- Replies: 64
- Views: 15053
Here is how i did my cobb angel eye. I purchased a AC to DC converter at amazon.ca 25.00 Canadian. The power supply is 12 volt 5 amp max. I went to a hardware store purchased a dimmer switch along with a switch box. I also purchased a cheap power bar. I cut the power cord in half on the power bar. w...
- Sun Aug 13, 2017 3:17 pm
- Forum: Equipment Discussions
- Topic: Mitutoyo objective lens coins
- Replies: 64
- Views: 15053
- Sat Aug 12, 2017 4:58 pm
- Forum: Equipment Discussions
- Topic: Mitutoyo objective lens coins
- Replies: 64
- Views: 15053
- Sat Jul 08, 2017 10:09 am
- Forum: Equipment Discussions
- Topic: Mitutoyo objective lens coins
- Replies: 64
- Views: 15053
ring light
I wanted to try a ring light on coins. Here is a couple of photos taken with a ring light mounted on a enlarger lens. The coin is in a 2 x 2 holder
- Thu Jul 06, 2017 7:41 am
- Forum: Equipment Discussions
- Topic: My Low Cost Semi-Automatic 4ยต Step Device
- Replies: 7
- Views: 1813
- Sun May 21, 2017 6:43 pm
- Forum: Equipment Discussions
- Topic: 80mm lens shootout - for coin photography
- Replies: 48
- Views: 19358
Lucht Lens ~ Crop E fixed Aperture
Ray my Lucht lens is the same. It has a fixed frosted aperture
- Sat Apr 29, 2017 5:47 pm
- Forum: Equipment Discussions
- Topic: Amp Dial on my Zeiss Power Supply
- Replies: 22
- Views: 3770
Rudix The 240V won't be 3 phase, it would be normal single phase as used in EU and here in South Africa. Not really more dangerous than 110V, other than packing more "kick"! 3 phase would be 380V but it is only used on heavy electrical equipment. Looks like a great power supply! The best thing to do...
- Fri Apr 28, 2017 5:46 pm
- Forum: Equipment Discussions
- Topic: Voice Coil Rail
- Replies: 260
- Views: 46594
- Fri Apr 28, 2017 5:43 pm
- Forum: Equipment Discussions
- Topic: Amp Dial on my Zeiss Power Supply
- Replies: 22
- Views: 3770
75RR your old unit was supplying at 10 volts. the unit would supply up to 10 amps. i would not set the amperage on your new to you unit at 8.3 amps. you have quit a power supply there. your unit is designed to work single phase 110- 120 volts standard house load. looking at the data plate. your unit...
- Fri Apr 28, 2017 9:53 am
- Forum: Equipment Discussions
- Topic: Voice Coil Rail
- Replies: 260
- Views: 46594
mawyatt I was wondering how did you come up with these values. I would like to understand these. I like what the members are doing here. This speaker acts like a trip coil very interesting. So for a case that uses a 8 bit DAC and would like current to stay within +-1LSB at say 250ma load current wit...