Sr. Verde's: Concentrate Corner
- Thread starter Sr. Verde
- Start date
See? I got a ways to go.
jdro
Well-Known Member
So I am trying to learn vac purging. I bought a single stage 3 CFM vacuum pump but now am reading it may not be enough? Is this right? Do you need to have a 2 stage 6 cfm to properly purge? My vacuum chamber does not come to monday so I was trying to use a mason jar but cant seem to get a great seal on the lid where I poked a hole. So, if anyone has any advice for me I would love it. Also, the vac seems to exhaust a lot of smoke, is this normal?
researchkitty
Well-Known Member
Should be ZERO smoke or emissions whatsoever. If its smoking, its most likely defective........ Sucky dude!
Matt Rize
Hashmaster
That is oil vapor, not smoke. You can't get a good vac with a janky mason jar set up. You will have success once your chamber arrives.
Incorrect. Vac pumps have oil levels that you need to watch. The oil vaporizes off slowly as you use it.
researchkitty
Well-Known Member
No shit! Thanks Matt.......... Is the vapor smoke something that is continual or something thats more from initial purchase lube that decreases with use?
DreamTime
Member
Strictly speaking, you don't need a 2 stage pump, but you'll get a better vacuum with a 2 stage. For what we are doing, the CFM isn't really important. A 3 CFM pump is all most people ever need. I personally use a 2 stage 1.5CFM pump and I'm very happy with it.
DO NOT use a mason jar. They are not designed to withstand a vacuum and could implode causing physical injury.
The exhaust you are seeing is mostly water vapor and a little bit of pump oil. It's perfectly normal and nothing to be concerned about.
dankshizzle
Glassblowing Moderator
I've been busy starting a new company
Here it is...
Dabbaragz
The first rag made for wiping your dabber. Also keeping table clean. Heady stiching and fabric comming soon.
And tshirys available..
Patent pending and will be available on dablab, aqua lab, 2kindustries, dabnflow, and Dabbaragz.com soon..
Here it is...
Dabbaragz
The first rag made for wiping your dabber. Also keeping table clean. Heady stiching and fabric comming soon.
And tshirys available..
Patent pending and will be available on dablab, aqua lab, 2kindustries, dabnflow, and Dabbaragz.com soon..
Dan Kone
Well-Known Member
It's continual.
Sr. Verde
Well-Known Member
Matt rize is correct.. A little bit of vapor is normal, but note that excess vapor is not. My first vacuum I purchased from amazon, it was a master cool, it sucked. It had obviously been dropped and was leaking oil in the box. That pump spewed vac oil all over the place and I had to return it to amazon.
Then I picked up a harbor freight vac pump, at a local store and have done like 30 successful purges with it. It will produce a little vapor at the beginning then will produce nearly nothing after 5 seconds.
CFM doesn't matter, you will suck out the air in 30 seconds to a minute even with a 1-2 cfm pump with a large chamber.
What IS important is the vacuum the pump is rated to pull, which is usually measured in microns. Which can be converted to hg, for ease of measurement. Mine is rated to 25microns, which is over 29hg. As an example anything higher than 26hg will purge BHO properly.. The higher the vacuum the faster and more violent/rapid the purge.
Hope that clears some stuff up for you folks just now getting on the electric vacuum wagon!
Then I picked up a harbor freight vac pump, at a local store and have done like 30 successful purges with it. It will produce a little vapor at the beginning then will produce nearly nothing after 5 seconds.
CFM doesn't matter, you will suck out the air in 30 seconds to a minute even with a 1-2 cfm pump with a large chamber.
What IS important is the vacuum the pump is rated to pull, which is usually measured in microns. Which can be converted to hg, for ease of measurement. Mine is rated to 25microns, which is over 29hg. As an example anything higher than 26hg will purge BHO properly.. The higher the vacuum the faster and more violent/rapid the purge.
Hope that clears some stuff up for you folks just now getting on the electric vacuum wagon!
jdro
Well-Known Member
You must spread some Reputation around before giving it to Matt Rize again.
Thank you!
Thank you Thank you! I think I am in the same boat with the amazon pump. There was oil leaked in the box, and probably why it seems like there is a lot of vapor.
Sr. Verde
Well-Known Member
Was it this?
http://www.amazon.com/Mastercool-90066-A-Vacuum-Pump/dp/B0021UMFF0
I had the same trouble,
, I hope they didn't send you my unit, "refurbished".
I'd recommend you send it back, and do what I did - pick one up from a local harbor freight, with a 2 year extended warranty for an extra $20.
http://www.harborfreight.com/two-stage-3-cfm-air-vacuum-pump-66466.html
I use one of those, it's awesome, pulls a better vacuum - and is way quieter than the master cool. Not to mention it's quite a lot smaller.
PS: For everyone - I didn't touch on 1 stage vs. 2 stage... But for "our" purposes 2 stage is best... Think gears in a car. A 2 stage can switch into the second stage to pull the deep end of the vacuum as to take the effort off the first stage. This allows better longevity for the vacuum pump motor, as well as a better/deeper vacuum.
http://www.amazon.com/Mastercool-90066-A-Vacuum-Pump/dp/B0021UMFF0
I had the same trouble,
, I hope they didn't send you my unit, "refurbished".I'd recommend you send it back, and do what I did - pick one up from a local harbor freight, with a 2 year extended warranty for an extra $20.
http://www.harborfreight.com/two-stage-3-cfm-air-vacuum-pump-66466.html
I use one of those, it's awesome, pulls a better vacuum - and is way quieter than the master cool. Not to mention it's quite a lot smaller.
PS: For everyone - I didn't touch on 1 stage vs. 2 stage... But for "our" purposes 2 stage is best... Think gears in a car. A 2 stage can switch into the second stage to pull the deep end of the vacuum as to take the effort off the first stage. This allows better longevity for the vacuum pump motor, as well as a better/deeper vacuum.
jdro
Well-Known Member
No I picked up a Robinair Vacuum. I am going to try and return it and get the one from harbor freight. Thanks.Was it this?
http://www.amazon.com/Mastercool-90066-A-Vacuum-Pump/dp/B0021UMFF0
I had the same trouble,
I'd recommend you send it back, and do what I did - pick one up from a local harbor freight, with a 2 year extended warranty for an extra $20.
http://www.harborfreight.com/two-stage-3-cfm-air-vacuum-pump-66466.html
I use one of those, it's awesome, pulls a better vacuum - and is way quieter than the master cool. Not to mention it's quite a lot smaller.
PS: For everyone - I didn't touch on 1 stage vs. 2 stage... But for "our" purposes 2 stage is best... Think gears in a car. A 2 stage can switch into the second stage to pull the deep end of the vacuum as to take the effort off the first stage. This allows better longevity for the vacuum pump motor, as well as a better/deeper vacuum.
dankshizzle
Glassblowing Moderator
Got the stitching done on the Dabbaragz
i have that one never had any problems with it ya its noisy but seems to get the job done
dankshizzle
Glassblowing Moderator
Nice idea. I do screen printing now also. We are printing these like tshirts on the back. Different designs in sets of 71.0
Distribution is started. The shops are getting em.
Distribution is started. The shops are getting em.
Matt Rize
Hashmaster
want help w promotion? let me know how I can help.
dankshizzle
Glassblowing Moderator
I'll send u one to use in your videos. I'll take all the help I can get. Its only me and one other kid doing it. And he is basically just printing and has the machine. I'm marketing, designing, sewing, and managing it.
Also the middle opens at the bottom to Wipe the dabber inside the two pieces of fabric.
I'm making a Facebook and website. I'll add u to the fb
Also the middle opens at the bottom to Wipe the dabber inside the two pieces of fabric.
I'm making a Facebook and website. I'll add u to the fb
pure.shifter
Member
i think this video deserves a watch in this tread. a little long but great Dab talk
[video=youtube;Ev-94aPzNfI]http://www.youtube.com/watch?v=Ev-94aPzNfI[/video]
[video=youtube;Ev-94aPzNfI]http://www.youtube.com/watch?v=Ev-94aPzNfI[/video]