Texas_Ace BLF Calibrated Lumen tube / Sphere No math skills needed - Several spheres still available

[Lumeniac (Burgerman)]

i mean low lumen not with sphere, with this self-made pipe

[maukka]

Great job TA!

It doesn’t matter how low lumens the pipe can measure. You can just measure a middle or high mode in the tube and calculate the low mode lumens from the lux ratio in a smaller box or even measuring straight from the hotspot. Of course it’s not as straightforward as looking at the number on the lux meter.

[Lumeniac (Burgerman)]

@maukka

It doesn’t matter how low lumens the pipe can measure. You can just measure a middle or high mode in the tube and calculate the low mode lumens from the lux ratio in a smaller box or even measuring straight from the hotspot. Of course it’s not as straightforward as looking at the number on the lux meter.

you are damn right ) i use this ratio sometimes, dont know why it didnt came to my mind this time
thanx

[Texas_Ace]

@Bob_McBob

@Texas_Ace

It is possible I could 3D print up a custom ring that could be used for this if they all have the same size head. Can you get me a measurement of whatever edge you would want the light to seal to?

I’ll get you some measurements later today. Could you please PM me about shipping to Canada? I am tentatively interested.

PM sent

[Newlumen]

$300 deposit PayPal sent for 3 lumen tube. Thanks.

[Blazer296]

In for 1.

Always wanted a way to truly compare my builds to others here on BLF.

Let me know if I need to pre-pay.

Thanks.

[Texas_Ace]

@Blazer296

In for 1.

Always wanted a way to truly compare my builds to others here on BLF.

Let me know if I need to pre-pay.

Thanks.

Added!

I will post when I am ready for payments, I want to get all the details figured out on exactly what I am ordering and how many first so I have peoples money as short as possible.

I figure I will give it a week or so and see what the interest level is before nailing everything down. Right now I would order 20 but if we push past 20 in the next several days I will go ahead and order 30.

Plus I am going to go see if I can get that other half a sheet of the diffusing sheet, in which case I might just go ahead and order 40 of them and sell whatever is left over without shipping included in the price until they are gone.

All depends on how much interest they get in the next week or so.

[Newlumen]

Yes. We should prepaid. I did already…

[Agro]

Thank you Texas Ace for doing it. I think it’s very valuable to have a set of cubes which measure the same spread around the world.
I’m not into this stuff deep enough to buy one yet (and recognise that I may be losing my only chance), but I love it nevertheless.

[Newlumen]

I am very confident you will sell 20. If not, i would fill the gap. Guarantee.

[Texas_Ace]

@Newlumen

Yes. We should prepaid. I did already…

I plan to get some PVC quotes tomorrow for both the normal and larger size and hopefully see if I can get anymore diffusing sheet (If I offered the larger tube option I would need more for sure).

Saturday I plan to take a trip to the laser cutter and 3D printer to get a quote on those.

I have an idea what the prices will be but I need to confirm.

I am also talking to a few suppliers about getting express shipping on the lux meters so we don’t have to wait forever.

Once I have all of that nailed down I will start taking payments, most likely this weekend.

[teacher]

Just to make sure I understand correctly TA.

• YOU will tell us when & how to make payment (downpayment / prepayment).
• You “might” offer a ‘tube’ large enough to accommodate a GT sized light.

Is this correct??

Thank you TA……… :+1:

[Texas_Ace]

@teacher

Just to make sure I understand correctly TA.

• YOU will tell us when & how to make payment (downpayment / prepayment).
• You “might” offer a ‘tube’ large enough to accommodate a GT sized light.

Is this correct??

Thank you TA……… :+1:

Yep, pretty much. I just want to nail down the final details to make sure there are no surprises before I start taking money.

This is much larger then I first planned on and the costs are higher as well. So having to re-figure some things and make sure I can get the quantities I need.

[Terry_Oregon]

Count me in.

Terry

[DavidEF]

Boaz is selling DC-Fix Here and he has mentioned that he has some other materials including some that are thicker/stiff that he needs someone to test. Maybe you could help him out with testing, and it might be similar to what you’re using for this tube or even the same material. I don’t know what price you paid for yours, but I think you should check with him.

[Texas_Ace]

@DavidEF

Boaz is selling DC-Fix Here and he has mentioned that he has some other materials including some that are thicker/stiff that he needs someone to test. Maybe you could help him out with testing, and it might be similar to what you’re using for this tube or even the same material. I don’t know what price you paid for yours, but I think you should check with him.

Yeah, I got my DC-Fix from him myself. I was planning on using it for the sphere but it would of needed a separate piece of glass to mount it on.

The biggest reason I want more of this particular diffusing sheet is that stacked in the right order it gets the sphere within about 5-10% off the bat, which is much easier to fine tune then something that is further off.

I am pretty sure I saw another half sheet of this on a shelf when I got this but I didn’t worry about it since I didn’t think it would be needed. I plan to stop by tomorrow and see if it is still there.

[teacher]

@Texas_Ace

@teacher

Just to make sure I understand correctly TA.

• YOU will tell us when & how to make payment (downpayment / prepayment).
• You “might” offer a ‘tube’ large enough to accommodate a GT sized light.

Is this correct??

Thank you TA……… :+1:

Yep, pretty much. I just want to nail down the final details to make sure there are no surprises before I start taking money.

This is much larger then I first planned on and the costs are higher as well. So having to re-figure some things and make sure I can get the quantities I need.

Sounds great TA, looking forward to it!!! :+1:

[inrealtime]

Looking forward to the option of the larger tube before I commit. Prefer the larger tube

[Texas_Ace]

@inrealtime

Looking forward to the option of the larger tube before I commit. Prefer the larger tube

I did some searching online earlier today and the larger tubes are only 5-6x the price online (each bench was $30-$50)

I know of a local specialty plumbing supply I plan to check tomorrow.

[inrealtime]

@Texas_Ace

@inrealtime

Looking forward to the option of the larger tube before I commit. Prefer the larger tube

I did some searching online earlier today and the larger tubes are only 5-6x the price online lol.

I know of a local specialty plumbing supply I plan to check tomorrow.

“Only” 5-6 times. LOL. I guess I will be buying the standard size!