use's for vacuum pump?

[jr23]

I was digging around the junk store I found a vacuum sealer for mason jars, the machine itself was cracked but I tore it apart and have a decent vacuum pump and was wondering what other use's it has I know about the stump sucker and things I was thinking of using it with My blow-ins and stuff any ideas would be nice.
later alldayjay

[The Glass Fish]

Ever heard of a water hammer? A scientific guy I met traded me for one. It is fairly easy to make, but you need a vacuum pump. They are neat to put on your table at a show or event to let the custys play with. Get a tube of 1" or 1 1/4" tube, round one end like test tube. Make it perfect. On the other end blow a nice even ball and put a nipple on the tip. Anneal it. After it is cool, pour in pure water (reverse osmosis or something, not tap) to fill bottom about 1". attach to pump and vacuum. Once vacuum is achieved seal nipple.

The water, when shook up and down correctly will move up and down the tube in a cohesive solid mass. Without any air to disrupt the surface tension the mass of water will strike the bottom of the tube like a steel ball, making an audible clinking sound.

http://www.haverford.edu/astronomy/Demonstrations/mechanics/glass_water_hammer.htm

[Mark F]

I have seen them used for making milli's, but this was a long time ago.

[Greymatter Glass]

Dude, vacuum pumps suck.

[Big Jay]

glass fish you gave me a great concept to try on a project I have been working on.

[Mike Glass]

You could use it for a stump sucker, but you'll need a check valve so the stump won't lose vacuum during the process.

I have a pump, I use it for a vacuum forming machine I made. I had a model airplane business and used to make canopies with it. You can do all kinds of cool stuff with it!

Mike

[colonel4bin]

You can do some really nice sleeving with a vacuum pump and a lathe!!

[K-Dog]

You can do some really nice sleeving with a vacuum pump and a lathe!!


I agree, you can use a vaccum pump to make coloured tube and encased rod on a lathe.

Rod: clear core, second layer of colour, third layer standard wall tubing,melt down one end so that it's sealed,,punty up to that side, attach vaccum to other end, then start melting it in from one side to the other.Stretch or whatever to your needs.

[Meerkat]

Dude, vacuum pumps suck.

Your thinking of penis pumps

[bc]

You can do some really nice sleeving with a vacuum pump and a lathe!!

You don't even need the lathe. My shopmate kurt b does ALL his encasements by hand an lets the vacumn pump pull out all the air, no air bubbles. Everytime I see him do that I say to myself: "Self, your wasting time encasing this with rod"

Very, very useful tool for color guys.

[jr23]

Yep I am just know getting around to using my pump for some sleeve action! I would love to watch it get done one time by your shopmate. I have been over thinking it I am sure. I am just trying to work out the kinks as in how to bridge it on the vacuum side. Anybody smell what I am stepping in and have a tip. I was thinking of taking the sleeve section and doing like a ice pinch at the end. That way it has some support and does not try to get all over the place. I want to get this down as I know its a real time saver!

[J Howard]

i did an article in glassline once for vacuum cleaner encasement cane. i bet a vacuum pump would work even better (i just don't have one).

if you ever make cane, i can tell you that it works better than making it by hand (drawing on a rod then encasing). when you vacuum the sleeve down on to the rod, keeping the rod perfectly round, it sharpens the lines exponentially

[cIRclE]

I tried stick stacking on the lathe without a vacuum and found I got a big air bubble underneath my color between the base tube of clear and the rods. I'm lookin on harbor freight for a vacuum pump right now. Stoked!

[Mike Glass]

Check out eBay.

[Lub]

darby sleeves with a shop vac...still haven't had time to pick one up and try it, but it's honestly too easy, once you get it down. sluuuuurp, no more bubbles

[Rosentech]

A decent pump at Harbor Freight is only 80 bux. I've heard of guys doing tube pulls on 75mm with vacuum pumps by hand with some rollers. It really is the way to go for fast consistent tube pulls.

[Lub]

no no no use a shop vac

[Greymatter Glass]

shopvacs aren't made to draw a sealed low pressure vacuum, you'll eventually burn out the motor.

Eventually.

If you're using it a lot for long periods of time a vacuum pump might cost less in the long run. Shopvacs do make a nice (pre?) roughing pump tho.

If you're just doing odd projects with it, a $30 shopvac should last a good while. I haven't burned mine out yet... just waiting for the day.

[RajS]

im not sure if im understanding this. the inside tube has to be sealed on the vaccuum side so the vaccuum doesnt suck the tube closed, and the outside tube is what is connected to the vaccuum?

[kage]

anyone have pics or videos of this? i get it. in fact i have two old vaccuum pumps sitting in my garage. i guess a lb or two of color and some experimenting will give me the answers.

[chayes]

http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=100731906 Check the latest issue of glassline.

[kage]

^ seen it, repped you for it. didn't know there was a vaccuum pump involved. dope ass shit. thanks for sharing

[seadal]

How do you keep the tube from collapsing? Is that the tricky part?

[Rosentech]

How do you keep the tube from collapsing? Is that the tricky part?

The vacuum pump is only hooked up to the outer tube. The inner tube is closed off at the end and has a separate blowtube.

Adam.....

[seadal]

Would anybody care to do a step by step tut on this?

[chayes]

Look in the last issue of glass line.

[kage]

i couldn't wait for glassline. busted out the vaccuum pump yesterday. it was so super sweet, words can not express.

did it by hand, so prob not the same as the tutorial. but yeilded close to 2lb pulls in under 20 min with very minimul prep.

a round of + rep to everyone who posted in this thread.
:metalhead:metalhead:metalhead:metalhead:metalhead :metalhead:metalhead:metalhead:metalhead:metalhead :metalhead:metalhead:metalhead

[Rosentech]

did you snap pics of your finished tubing. Curious to know how it came out.

[kage]

^no, i used it all today. pieces are in the kiln at the moment. more tubes coming soon. may post a tutorial if chayes doesn't mind.

[seadal]

Yes Kage post a tut with pics. You still have the phone # that ends in 1853? I am going to have to call you about and speak to you about it. I am comming to Dallas this weekend, may have to bring some color and come by.

[misticglass]

mind blowing....... so sick.

[chayes]

but yeilded close to 2lb pulls in under 20 min with very minimul prep.
Just curious, did you put that on a scale and weigh it?

[The Lorax]

i would be interested using vacuum pumps for "bi-polar" stick stacks... I really don't think people do "bi-polar" tube pulls as stick stacks, but if it is possible it is the way i'd prefer to do it...

anyways, i'd really like to see this tut... i don't have glassline

[Lub]

You cut a hole in the shop vac hose where you put the stopper connected to the blowhose so some air bypasses so you don't kill the motor. Should have mentioned that.

[kage]

Just curious, did you put that on a scale and weigh it?

no it was an estimate. last time i weighed a tube pull (pre vaccuum pump) it was right at one lb.

this method felt like it was easily double. although it may have been less than 2 lbs i feel like it was close enough to call it a 2 pounder.

and lorax, by bi-polar, do you mean half and half? cause thats what i did first, using half clear rods to save on color just in case things went wrong.

[chayes]

I was just wondering cause five feet of 26x4 is 2.04 lbs

[The Lorax]

and lorax, by bi-polar, do you mean half and half? cause thats what i did first, using half clear rods to save on color just in case things went wrong.

no that is a fade to clear. bipolar is usually fire/ice or very contrasting colors... except the ice colors will be on the inside, then the outside will be fire.... they are always fade to clears usually to make the opposite colors more visible and obviously it'd make sense that the easy way to do with would be as a rod encasement but still if there was a way to do it as a stick stack say like Tube, rod, Tube, Rod, Tube it'd be pretty damn cool... although it does sound a little over the top... i dunno, still worth thinking over. :o:

[Turning Point Glass]

Just saw this idea for making a vacuum pump out of an aquarium pump...don't know if it creates enough suction, but it's definitely cheap and easy enough.

http://www.instructables.com/id/Quick-Vacuum-Pump/

[kage]

I was just wondering cause five feet of 26x4 is 2.04 lbs

well, i should prob not post after safety breaks. cause i def didn't pull 5 ft of 26x4. more like 3-4 ft of 20x6 (just a guestimate). imo its gotta be more than a pound.

however, you have inspired me to find out how much my tubes really do weigh. next time i do this i will do multiple pulls and anneal them all, instead of working them into reversals and pieces the same day. then i will know for sure.

thanks for the reality check.

[NUBBLET]

:o: double

[NUBBLET]

I was just wondering cause five feet of 26x4 is 2.04 lbs


well, i should prob not post after safety breaks. cause i def didn't pull 5 ft of 26x4. more like 3-4 ft of 20x6 (just a guestimate). imo its gotta be more than a pound.

however, you have inspired me to find out how much my tubes really do weigh. next time i do this i will do multiple pulls and anneal them all, instead of working them into reversals and pieces the same day. then i will know for sure.

thanks for the reality check.

I am just addin fuel , I have wondered what effect the colorants and extra stuff color companies use , on the weight of glass . I would kinda think that a color tube 5 foot by 26x4 would weigh more than a clear one . Then this leads to each color possibly by volume weighing different say a white compared to dark cobalt or black ....... take a 1 inch mib of each , do they weigh the same or is each just a smidge different ?

Or a 1 inch of clear compared to a color one ?

I have always wondered about this after noticing how the 26 heavy would weigh the same as (if mem recalls) 32 or 38 medium , well just the diameter to wall and weight , if my safety break has not gone3awry , I hope that makes sense .

[chayes]

I know what your saying. My pounds of soft glass are smaller than pounds of boro.


I would kinda think that a color tube 5 foot by 26x4 would weigh more than a clear one . I believe that your right, but i don't think that it would be a huge difference unless there was a lot of heavy chemicals in the glass. I just weighed a jade rod aprox 6mm and a clear 6mm and the weight difference is only a few grams. Please note that clear rods are 6mm from one end of the rod to the other, a hand pulled color rod has deviation in diameter (even the machine drawn ones deviate), which may be up to 1mm difference from one side of the rod to the other. The jade wasn't that off but the fact it wasn't exactly 6mm does throw the test off a little.

[jr23]

I love my pump set up I have a pedal on it and a release all foot controlled.

[jr23]

Yes its like a big fish story with those damn vacume. encasement freeks.