rott 44 Posted April 18, 2017 Share Posted April 18, 2017 Making the thing wasn't to hard but calibrating the optic and getting to sit just right in the little plastic bottle was a pain. There was was one guy on the OR bulbs by the end that was making them to sell Sent from my SAMSUNG-SM-G930A using Tapatalk Quote Link to post Share on other sites
rott 44 Posted April 18, 2017 Share Posted April 18, 2017 But by the time you you would buy one of the Sent from my SAMSUNG-SM-G930A using Tapatalk Quote Link to post Share on other sites
rott 44 Posted April 18, 2017 Share Posted April 18, 2017 (edited) To make a good one is not cheap and to make a cheap one isn't going to give good readings with out constant adjusting. Edited April 18, 2017 by rott Quote Link to post Share on other sites
Muttley000 3,681 Posted June 29, 2017 Share Posted June 29, 2017 @cheap reefer did you ever move this forward? Quote Link to post Share on other sites
rott 44 Posted June 29, 2017 Share Posted June 29, 2017 I sent the unit I had to a friend to get it calibrated and on the return trip USPS machine tried to eat it for lunch it was totally destroyed get this with out a store type of receipt the poste office will not reimburse you the $50 ii was insured for the post master here in Toledo said I should of packed in a better box that is when I told him it was one of there box's I paid for his reply was I don't know what to tell you so I am just screwed Quote Link to post Share on other sites
Muttley000 3,681 Posted June 29, 2017 Share Posted June 29, 2017 7 hours ago, rott said: I sent the unit I had to a friend to get it calibrated and on the return trip USPS machine tried to eat it for lunch it was totally destroyed get this with out a store type of receipt the poste office will not reimburse you the $50 ii was insured for the post master here in Toledo said I should of packed in a better box that is when I told him it was one of there box's I paid for his reply was I don't know what to tell you so I am just screwed That is BS! But typical for a government office I guess. Quote Link to post Share on other sites
rott 44 Posted June 29, 2017 Share Posted June 29, 2017 so it is gone and I am not rebuilding it again it was almost on par Quote Link to post Share on other sites
cheap reefer 175 Posted June 29, 2017 Author Share Posted June 29, 2017 The cost to diy versus the cost to buy one was not cost effective...and that sucks rott..what the hell is the purpose of insurance then!!...BS!! Quote Link to post Share on other sites
ElleBlyth 1 Posted January 13 Share Posted January 13 Hi...Essentially a "PAR" (Quantum meter) is only a photodiode and filters.When building one the hardest thing would adjust it. Need to coordinate it to a known "genuine" meter. Second hardest thing is getting a blue upgraded photodiode since most are frail on the blue end as to reaction. Tragically the exploration truly went into the "lux" photodiode bend shape. Muttley000 1 Quote Link to post Share on other sites
Muttley000 3,681 Posted January 15 Share Posted January 15 On 1/13/2021 at 9:05 AM, ElleBlyth said: Hi...Essentially a "PAR" (Quantum meter) is only a photodiode and filters.When building one the hardest thing would adjust it. Need to coordinate it to a known "genuine" meter. Second hardest thing is getting a blue upgraded photodiode since most are frail on the blue end as to reaction. Tragically the exploration truly went into the "lux" photodiode bend shape. Welcome to the forum, sounds like you have some knowledge about this! Quote Link to post Share on other sites
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