Good Portable Digital Scale?
- Thread starter penguin
- Start date
Here are a couple links , great deals.
http://cgi.ebay.com/100-x-0-01-Gram...39:1|66:2|65:12|240:1308&_trksid=p3286.c0.m14
http://stores.ebay.com/BEST-BUY-SCALES_W0QQfrsrcZ1QQfsubZ6QQtZkm
Hope this helps,
Jim Lee
http://cgi.ebay.com/100-x-0-01-Gram...39:1|66:2|65:12|240:1308&_trksid=p3286.c0.m14
http://stores.ebay.com/BEST-BUY-SCALES_W0QQfrsrcZ1QQfsubZ6QQtZkm
Hope this helps,
Jim Lee
penguin said:
Last week I got from ebay a 300 gram scale to .01 gram increments.
It does 5 different weights, grams, oz, ct,ozt,dwt
The site also had scales that went to 2.2 lbs but was in .1 gram increments, but I am not sure if it is a true .01 oz increment.
The scale I have really need sto be in some kind of still air case or something. As just breathing on it will change the last decimal place.
Just checked, a .1 gram scale with other units will measure .01 0z.
I got mine from goodlucksell, but I would think there are numerous venders out there.
Neil
conetip said:
I bought two, small, digital 1000 gram scales a year or two ago for 11.00 dollars each with free shipping but I don't remember where I got them. They read to 0.1 gram or .001 ounce. I'll call the guy who turned me on to them tomorrow and see if he has the number.
Dick
Good enough for measuring epoxy weight?rhncue said:
JoeyInCali said:Good enough for measuring epoxy weight?
I certainly don't see why not. just push a button that zeros the tare weight. It is very repeatable also as I've put on a cue that came out to 19.365 oz and about 10 minutes later I weighed again and it came out exactly the same. I'll take some pictures a little later on and put them onto this post.
Dick
Here it is
Here is a link to the scale you and I bought: https://www.dealextreme.com/details.dx/sku.1165
They have several different models as can be seen on this page: https://www.dealextreme.com/products.dx/category.406
Dick,rhncue said:
Here is a link to the scale you and I bought: https://www.dealextreme.com/details.dx/sku.1165
They have several different models as can be seen on this page: https://www.dealextreme.com/products.dx/category.406
I borrowed wifeys Weight Watchers scale. Works great.
RocketQ said:
Good point - besides, 'poxy usually mixes based on FL ounces,
which is volume - not weight.
Tho I guess a clever guy could calibrate - but to a .01 of a gram.
How do you control the mixing accurately enough?
Dale<former chem lab tech>
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Some good points raised. Mixing is very important, a rectangular mixing devise is better than a round mixing stick.pdcue said:
Most of my epoxies that I use recomend weighing the resin and hardner.They also give a volume ratio at 20 deg celcius.
There is also charts available showing the effects of slightly toomuch and slightly not enough hardner.Either way, best results come from being within 2% of the correct ratio.
With a .01 gram scale , you are more likely to be able to mix to within .1 gram. But with a .1 resoultion, you will be lucky to be within .2 gram on each of the parts being mixed.
Mixing 100 grams and .1 is good enough, but mixing 10 grams and .1 gram scale is on the outer limits of consistancy. Just mixing glue may not worry , but when the structural integrity of what is being made matters, then the .1 gram scale is not good enough for the 10 gram mix.
Neil
Dale taking an educated guess and that is all it is. I would say the epoxy guys like west, system 3, maz use metering pumps that give you a middle ground on the mix. We know by trial and error that you can mix a hot or cold batch of epoxy kick fast kick slow. With that being said there is going to be an upper and lower limit on the amount of catalyst you should use. Too much cat. epoxy is brittle... Too little it may never set up correctly. Neil has it right on the complete mixing of the parts. It has to be totaly mixed or you will get soft spots.
As a side note. Automotive paint mixing scales are only accurate to 0.1g
As a side note. Automotive paint mixing scales are only accurate to 0.1g
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Digital Scales...
The one I bought a few years ago is a little more expensive, but if you have a Sam's club near you, they sell digital postal scales for about $35 to $40 dollars. Mine measures in ounces or grams to 2 decimals. If you need it quick, might be another option, good luck finding what you need.
The one I bought a few years ago is a little more expensive, but if you have a Sam's club near you, they sell digital postal scales for about $35 to $40 dollars. Mine measures in ounces or grams to 2 decimals. If you need it quick, might be another option, good luck finding what you need.
https://www.dealextreme.com/details.dx/sku.1165
This is the one that I also have. Mine weighs items approximately .1 oz lighter than my postal scale but I don't know which is more accurate. Since the pocket scale weighs items to the hundredth of an ounce and the postal scale to the tenth of an ounce I usually use the portable/pocket scale.
To keep cues from rolling off I glued 3 foot spots together, cut them in half, laid them about 1/2 inch apart on the scale table and glued the halves on the scale. I like it fine and the price is right. :groucho:
This is the one that I also have. Mine weighs items approximately .1 oz lighter than my postal scale but I don't know which is more accurate. Since the pocket scale weighs items to the hundredth of an ounce and the postal scale to the tenth of an ounce I usually use the portable/pocket scale.
To keep cues from rolling off I glued 3 foot spots together, cut them in half, laid them about 1/2 inch apart on the scale table and glued the halves on the scale. I like it fine and the price is right. :groucho: