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Carboy Level/Calibration Sticker Prototype

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Bobby_M

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I made up these plotter-cut vinyl decals for my 6 and 6.5 gallon carboys and thought I'd get some feedback on the graphics/shape design. I was considering adding these to my website because I've had several requests for something like this in the past.

What do you think of the overall shape/design and potential utility of having these on your carboys? How about feedback on how to handle partial gallon marks after 5/6 gallons? Do you like the .5 for marking 5.5, 6, 6.5 or is 1/4, 1/2 better for marking the last few quarts?

I'd expect white vinyl would provide the best contrast for all wort colors. I think putting a pair of these on opposing sides of the carboy would make sense.

Thanks for any comments.

carboy.jpg
 
they look great to me.

My only comment would be to have them in half gallon increments the whole way (I.E. 1, 1.5, 2, 2.5, etc).
 
They're big and bold and I like the idea. Of your two options, I prefer the <.5> but if I had my druthers I would go with a smaller diamond with no number just to avoid cluttering.

$.02
 
They're big and bold and I like the idea. Of your two options, I prefer the <.5> but if I had my druthers I would go with a smaller diamond with no number just to avoid cluttering.

$.02

I would think you could print them in different sizes if you downloaded them.

There was an article on etching numbers onto a carboy a while back. I thought there was too much etching, but, if you cut these out of a block you could use them for the same stenciling type technique.
 
I was considering adding these to my website because I've had several requests for something like this in the past.
I'd be in. Hope you'll have a quantity discount.
Got a lot of carboys.


Just one guys opinion. This isn't rocket science. One gallon increments are fine.
Half way between is . . . well, half. :p




But I do like this idea:
They're big and bold and I like the idea. Of your two options, I prefer the <.5> but if I had my druthers I would go with a smaller diamond with no number just to avoid cluttering.
 
I like the horizontal lines for the numbers, & I think that .5 is fine for 1/2 gallon increments. Honestly, I could estimate the partial gallons and probably wouldn't use the partial gallon increments...
 
Thanks for all the input so far. The reason for the triangles over a thinner line is that it would be a lot more robust as far as adhesion is concerned. A small tick mark could be scraped off.

I don't know about going 1/2 gallon all the way up. I can see 4.5, 5.5 for a 5 gallon carboy or 5.5 and 6.5 for 6/6.5 gallon carboys. I think explicit 1/4" marks are nice once you get to the upper shoulder because the difference in volume is not linear.

So maybe 1,2,3,4,5,6 and 1/2, 3/4, 1/4, 1/2. That would account for up to a half gallon below and above the rated capacity and also the quarts in between those ranges.

I can also do these as negatives to act as stencils for acid etching.
 
Add quarter ticks and you may have a winner. They become useful towards the top if you plan on doing a secondary.
Lets say the margin of error when having one gallon increments and estimating the quarter gallons is +/-20 ounces (should be doable even when drunk.) That's about 3% of the total volume. How does this effect the secondary?

Not joking. Seriously would like to know if I'm missing something? The numbers we use on everything from alpha acids to grain potential to yeast cell counts are based on averages and estimates. Why is volume accuracy down to a few ounces so important?

And all this is assuming that you get the sticker in the exact right spot.


I'll admit that from a bling stand point quarter gallon marks win out.
 
Very nice, and for durability I really like the triangular marks. I prefer the 1/2 and 1/4 over the 0.5 and 0.25, but that's just me. I also think a set of flattened triangles without any numbers would work well for 1/4 gal increments.
 
Lets say the margin of error when having one gallon increments and estimating the quarter gallons is +/-20 ounces (should be doable even when drunk.) That's about 3% of the total volume. How does this effect the secondary?

Not joking. Seriously would like to know if I'm missing something? The numbers we use on everything from alpha acids to grain potential to yeast cell counts are based on averages and estimates. Why is volume accuracy down to a few ounces so important?

And all this is assuming that you get the sticker in the exact right spot.


I'll admit that from a bling stand point quarter gallon marks win out.

It is about choices. If I want to siphon with as little break as possible from my kettle to the primary then knowing when I can stop is helpful. I can now siphon out the rest, let it settle, and can it as starter wort. Is it a big deal? No. Am I going to NOT do the extra marks if I go through the trouble of marking my secondary? No. Not much point in marking the secondary for my purposes if I don't put these marks on otherwise? My blind spot in not seeing the purpose of putting on the numbers if you don't have a use for them. ;)
 
This is what I ended up with. I'm going to cut some and test the adhesion on glass. I may have to pick up a new roll of vinyl with a more aggressive adhesive to be more appropriate for something that gets washed often. Of course, if you apply them to a 5 gallon carboy, the fractional indicators would surround the 5 instead of the 6.

I have two immediate uses for relatively accurate markings. The first is to verify brewhouse efficiency and the second is to accurately split a batch with someone else if we both have completely different fermenters.

carboy2.jpg
 
This is what I ended up with. I'm going to cut some and test the adhesion on glass. I may have to pick up a new roll of vinyl with a more aggressive adhesive to be more appropriate for something that gets washed often. Of course, if you apply them to a 5 gallon carboy, the fractional indicators would surround the 5 instead of the 6.

I have two immediate uses for relatively accurate markings. The first is to verify brewhouse efficiency and the second is to accurately split a batch with someone else if we both have completely different fermenters.

Not sure why, but I am not a huge fan of the small increment numbers. I am however a fan of a way of labeling them! Maybe the half and quarter numbers cound just be a sideways diamond shape? No number? Then leave it up to the user if they want to use them for 1/4 or 1/2 or whatever? Just a thought
 
Bobby....these are great! I'd actually like something like that for a sightglass...but I realize it's easy to crowd the tube. So what about something like this to put BEHIND the sight gauge? FWIW, for simplicity's sake, .5 would be as far as I'd want to go incrementally. I like how the whole numbers are big, and the increments are about 75% their size.
 
Not sure why, but I am not a huge fan of the small increment numbers. I am however a fan of a way of labeling them! Maybe the half and quarter numbers cound just be a sideways diamond shape? No number? Then leave it up to the user if they want to use them for 1/4 or 1/2 or whatever? Just a thought

The way they are laid out gives you that option. Cut out and use what you want. Personally, I would use the tic marks but not the fractions. Still, the way it is laid out gives me that option. He isn't selling a single piece that goes on the carboy. He is just putting up a stencil kit if you want to look at it like that.
 
Yeah that's true. If all carboys were standardized, I'd be able to pre-calibrate the cut. They'd be applied exactly the same way as the sight glass numbers. Run a vertical masking tape strip up the side, mark each increment by filling, then cut out each number, peel the backing and smooth it on.
 
I'd be more than happy to do performance testing on those labels. Let's see, I'd need 4 sets just to be certain.
 
Would it be hard to run a line through the arrows and numbers to keep everything together and add a little adhesion? I'll test dummy anything you've got if any are left. I've also been thinking of doing a solid 2" wide strip with the marks cut out for a reverse effect, but that is on a one for one based on the carboy size.
 
I'll send a single (FREE) prototype out to the next 4 people that reply, but the requirement is that you have to take a picture of the carboy with the numbers installed.

I'd be happy to post a pic for a free "prototype"
 
Damn! First hits on a new keg of IPA.
Drank too much and fell asleep. :eek:











edit:
I snooze, but don't loose. Thanks Bobby!
VVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
 
Ok, I lied, I'll send to the first five.

Step already PM'd his address but I need addresses from WPStrassburg, JalaPeno, MetallHed, and AnOldUR.

WPStrassburg, by the way. No need to put a line to keep everything together. These will be backmasked with application tape.

In case anyone is confused about how it works, it's a sandwich of heavier backing, then the cut vinyl, then a thin semi-opaque masking on the very top. You'd cut each number off the strip, remove the heavier backing to expose the vinyl adhesive, then position the number where you want it. Use a credit card or squeegie to smooth it onto the VERY clean carboy glass (use a little alcohol or acetone to remove oils and residue). Then peel back the masking to reveal awesomeness.
 
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