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07-25-2014, 07:12 AM #1
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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ebay seller supertechshop - bad news

Beware of supertechshop who sells some laser items on ebay.

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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 07-25-2014 at 08:36 AM. Reason: Added negs request.

07-25-2014, 10:04 AM #2
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RYDorDIE278
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Re: ebay seller supertechshop - bad news

cheerZ for the heads up on this seller! i wonder what your next "Laser Project" is ? Hmmmm
Good Luck
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07-25-2014, 02:26 PM #3
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rhd
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Re: ebay seller supertechshop - bad news

In fairness to this seller, we often don't know part numbers for diodes.

Also, if you were able to give him negative feedback, then it sounds like this exchange of questions happened AFTER you had already committed to a purchase through eBay?

IMO, there's nothing more frustrating (and inappropriate) than buyers who start asking clarification questions and demanding more info about an item AFTER they've committed to buy something. The time to do that is before pulling the trigger to buy an item, not after.
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07-25-2014, 03:18 PM #4
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Re: ebay seller supertechshop - bad news

supertechshop Is also SVCOMPUCYCLE. He is a reseller he does not have a lab or the equipment to test stuff that he sells.
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07-25-2014, 04:01 PM #5
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Re: ebay seller supertechshop - bad news

My expectation was that if he stated the part was rated for a specific output power, he would have either had a part number to know that, some other means of knowing or at least had it tested to know. I made an offer for it and he accepted, but I stipulated I needed to know the manufacturers rating before we closed the deal and he couldn't do that. My complaint is simple, don't give specifications you can't back up and then become angry with the customer for asking how he knew they were correct numbers.

__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

07-25-2014, 05:17 PM #6
 Class 4 Laser Join Date: Dec 2010 Posts: 8,491 Rep Power: 3580
rhd
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Re: ebay seller supertechshop - bad news

Quote:
 Originally Posted by Laser Project My expectation was that if he stated the part was rated for a specific output power, he would have either had a part number to know that, some other means of knowing or at least had it tested to know.
That's your expectation, but that may or may not be reasonable.

There are lots of as-is listings on ebay where a seller lists as much information as they have, but it falls short of detailed part numbers, or confirmation via testing.

I don't know if your listing was an as-is listing or not, because you still haven't disclosed the link to the listing so that we can see it to judge the situation. But if it was, then your expectation is unreasonable.
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CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660

SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

07-26-2014, 04:19 AM #7
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Re: ebay seller supertechshop - bad news

I expected him to be civil and not call me a bunch of four letter words for a simple request, he seemed very unbalanced to go off like that when I was only asking.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

07-26-2014, 05:10 AM #8
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: ebay seller supertechshop - bad news

Quote:
 Originally Posted by RYDorDIE278 cheerZ for the heads up on this seller! i wonder what your next "Laser Project" is ? Hmmmm BTW, Im the 1st To Help you on Your Protest Good Luck
Thanks! It may be some time until I build the next project, but appreciate the word.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

07-26-2014, 06:23 AM #9
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Rifter
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Re: ebay seller supertechshop - bad news

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07-26-2014, 07:05 AM #10
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Re: ebay seller supertechshop - bad news

Nope, I made an offer with text that he must provide documentation that the device was rated for 400mw CW output, he accepted and then did not come through.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

07-26-2014, 02:32 PM #11
 Super Moderator Join Date: Sep 2013 Location: Morro Bay, CA, USA Posts: 8,174 Rep Power: 1008658
Hap
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Re: ebay seller supertechshop - bad news

Quote:
 Originally Posted by BubonicCronic Man you need to get over this. Rep points are small potatoes. Please take your own advice and move past it. In life you have to take the good with the bad. You should be having a good time here. But if you keep dwelling on those stupid points you'll never have fun. Just pretend they dont exist. I've had loads of red boxes. Do I care? Hells no. I keep moving forward having a good time. They dont change the person you are. If you like the person you are then some stupid red boxes mean nothing. Let it go and have some fun.
Just wanted to hop on LPF to confirm that Bubonic is giving you very, very good advice!!!

When I first joined LPF I was given A LOT of red boxes and it honestly made me feel bad, as if I needed to become someone I wasn't in order to be accepted here. A few months passed & I stayed in the hobby, listen to other veterans and gained more knowledge into the world of lasers. The beginning isn't always easy since people don't know you & don't *all* respect you.

Basically, just keep fighting, build some good projects(sure way to impress people and build your rep) and keep being the person you are. (I'll give you some green squares )

PS: Ok....back to being on "off-LPF" mode until August 14th!

-Alex
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07-26-2014, 07:22 PM #12
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Re: ebay seller supertechshop - bad news

LOL. Hey, you have this bass awkward, he pulled the sale from me, he refused to sell to ME after he became angry that I insisted to know the specifications before I sent the money.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

07-26-2014, 07:38 PM #13
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: ebay seller supertechshop - bad news

Quote:
 Originally Posted by madmacmo http://laserpointerforums.com/f41/wh...ml#post1275573 But you aren't crazy.
LOL, you seem too invested in this, why?
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

07-26-2014, 07:43 PM #14
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: ebay seller supertechshop - bad news

Here's my current project, 15W isn't enough, this pulse laser will do thousands of peak watts, but pulse, of course:

__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

07-26-2014, 08:04 PM #15
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: ebay seller supertechshop - bad news

Quote:
 Originally Posted by madmacmo Curious I guess. So let me see if I get this right? ) You placed an eBay bid, a binding agreement, for which you didn't intend to honor ) You gave the eBay seller bad feedback because he refused to sell you that which you did not intend to buy ) You opened this thread to complain about a problem you precipitated in which at the very least you are equally culpable ) And you want us to think you are a victim of his behavior?
Nope, you are wrong on several of your points, I won't get into a pissing match with you over this as that is clearly what you want. I intended to buy if the item was capable of what the seller stated it was (edit from here) but then he refused to sell the item to me (this became clear when he increased the price from 500 to 1000 dollars with shipping on the invoice to me afterwards) which is against ebay rules and in addition to that emailed me with harassing emails, way over the top for the situation at hand, reminds me of you a bit, to tell you the truth, do you know the guy?

Why are you being so obtuse? Why are you so invested in this? You keep ignoring that question, obvious you are angry if you are scurrying around the forum finding past posts to bring back to this thread. Ooops, I just pissed back, but seriously, do you see the whole picture now or are you ignoring reality?
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 07-27-2014 at 01:31 AM.

07-26-2014, 11:29 PM #16
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,173 Rep Power: 1058763
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Re: ebay seller supertechshop - bad news

Great, glad to hear it, just don't ignore the facts, it appears to me you were purposely doing that but I will give you the benefit of a doubt you weren't following along well enough, or I wasn't fully explaining it from the outset well enough.

Cheers
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

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