murderskill Posted May 4, 2006 Posted May 4, 2006 Hello everyone. I read that .1 to the gram is the best but will .01 do?
Chris Posted May 4, 2006 Posted May 4, 2006 The more accurate the better. I general however, I think that even a 0.1 accuracy is a bit unnecessary depending on the application. Whenever you are mixing >1000g batch, a few grams do not matter anywhere. Accurate scales like the one you described usually have a very limited max. weighing capacity in addition of a higher price.. Most scales accurate to 0.01 g that I have seen have a max capacity of 200 g, which may be enough for some people, but is definitely not enough for most pyros. I'm sure you could get a normal cheap digital kitchen scale to do the job.
murderskill Posted May 4, 2006 Author Posted May 4, 2006 Ya I bought mine off ebay for like 20 dollars. The max of mine is 100g. I dont need much really. Maybe in the near future i'll get a better more expensive scale.thanks for your info
Mumbles Posted May 4, 2006 Posted May 4, 2006 I have a 200g x .01g scale. Then again, I also did a lot of smaller scale amateur chemistry in the past. I like it, but it is becoming kind of low capacity now. I also have a 5lb x 1g scale I use for bigger things. I wouldn't trust it to weigh anything horribly accuratly under 50g though.
Von Bass` Posted May 4, 2006 Posted May 4, 2006 yeah I bought my set of sclaes off ebay for a fairly cheap price, they are 120g x 0.1g. I think 0.01g is useful for if you are trying smaller test batches e.g. star mixtures in 10g lots. We also used 0.01g scales in chemistry when we were doing practicle moles calculations.
murderskill Posted May 4, 2006 Author Posted May 4, 2006 Well im gonna be making flash and making smoke bombs. I think it should do for those right now until i get more money right?
aquaman Posted May 4, 2006 Posted May 4, 2006 Just look around. I can find a 300g max and .1g accuracy for like $20. It isn't even ebay. My scale is 300g X .1g but it can actually go to like 308g. Here's a place that sells one for a good price. SCALE It's not where I bought mine since where I bought mine shut down, but it's a place to start.
al93535 Posted May 4, 2006 Posted May 4, 2006 I think two scales like Mumbles is the best way to go. I have a 500 gram x .1 gram digital scale for most applications. However I cannot weigh my 6" shells on this to figure the amount of lift I need. So I have a kitchen digital scale that goes up to 2400 grams x 2 grams, I use this only for weighing large shells, or large amounts of chems. I also have a grain scale for reloading ammunition. I use this for weighing out flash, as well as making 10 gram sample batches of new comps. If you want to do only small devices, I would say then yes use a .01 gram accurate scale. You can always buy a larger one later if needed.
Pretty green flame Posted May 5, 2006 Posted May 5, 2006 I think it would be worth mentioning UN here, their 6kg capacity scale has an accuracy of 0.1grams and cost 250$ and in my opinion that's cheap as dirt for a scale like that. http://www.unitednuclear.com/scales.htm look at the UN-6000 model. They're currently sold out but when they get it back in stock......
Draco_Aster Posted May 5, 2006 Posted May 5, 2006 Or just go the good ol' tripple beam. Its always done me good That site actually has good prices Thanks for sharing. My old scale is from china dirt cheap and measures to .05g up to 110g. I also have a kitchen scale with 1g accuracy with 5000g capacity for $20.
Kiddo Posted May 5, 2006 Posted May 5, 2006 I got my scales very cheap (it was a special offer) 500g x 0.1g for 10 English pounds Ive also heard (if you're in the UK) that UKScales, which is a shop on Ebay, is extremely good for both quality and price.Regards
FrankRizzo Posted May 5, 2006 Posted May 5, 2006 I prefer Old Will Knot Scales http://www.oldwillknott.com/ I suggest getting a scale with .1g accuracy (not just precision) in an established brand like Ohaus or Tanita. The My Weigh brand scales are inexpensive, but the sampling rate is so slow that you'll have to wait a second after adding additional portions for the weight to stabilize. Triple beam balances are nice for their ruggedness, but tareing a digital scale is soo much nicer.
Mumbles Posted May 5, 2006 Posted May 5, 2006 I agree. That is where I got my .01g balance. It is an iBalance, and the low sampling rate is definatly a pain, but nothing I can't get over. They're slower than the ones we have at schoo, but I'm not about to pay a couple hundred bucks for 10 seconds off my massing. My big scale is an Ohaus, and I love it. It weighs fast and accuratly. I highly recomend them.
murderskill Posted May 9, 2006 Author Posted May 9, 2006 The flash im making is Star Molecule 2 micron Aluminum(pyroaluminum)/kcl04. I dont plan on making over 70 grams at a time. Im goning to start out making 50 grams at a time and move up. On the other hand I will be making 100 grams smoke comp. at a time. I think I will buy this scale http://www.rightonscales.com/web/t2.htm from the site mentioned above soon. I already have 1 100 gram calibration weights. But from from what I hear my .01 scale is good enough for the time being for these 2 comps I mentioned?
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