www.TK560.com Forum Index www.TK560.com
Vacuum Forming, Movie Prop, Sci-fi and GIjOE Forum
 
Log in to check your private messagesLog in to check your private messages

Log inLog in  RegisterRegister


Profile  Search  Memberlist  FAQ  Usergroups
Finally going to get this going!

 
Post new topic   Reply to topic    www.TK560.com Forum Index -> Vacuum Forming & General Stuff
View previous topic :: View next topic  
Author Message
Darth Voorhees
Newbie


Joined: 28 Jan 2011
Posts: 16
Location: Oceanside Long Island NY

PostPosted: Wed Sep 28, 2016 6:56 pm    Post subject: Finally going to get this going! Reply with quote

Just a semi-repost from my intor thread so i can ask questions n such and it all not be in the intro thread Smile

Been trying to get a table together for the last 5yrs, but something always prevented it...sometimes money sometimes space. When i lived in Brooklyn in an apt, it really just wasnt going to happen. But since then ive moved to Long Island NY in the back half of my inlaws house and we have a huge yeard where i can build a 10X14 shop with the proper electrical lines, ventilation, a/c, heat and humidity control. My Father inlaw is an electrician so he will be getting the power into the shop.

But i actually have purchased the proto-form plans and will get started as soon as i have the cash available to me.

I currently have a gofundme up to help fund the shop and table builds because right now my only income is the prop stuff im currently doing (painting and some fiberglass armor/helmets etc) and i cant seem to make enough to get either the proper shop or the table built after all my bills and rent is paid. I absolutely HATE asking for money but it was the only way i could see me getting this done and being able to continue doing what i love for a living. If your interested in helping out, PM me and i'll gladly send you the link. I dont know if its allowed, or in poor taste to post that here.

Anywho, i figured id start asking questions now so once im ready to actually build the thing i have some sort of clue.

1 is a 30 gallon tank like this one a good choice if using a 10cfm pump on a 24X48 size table?
http://www.globalindustrial.com/p/pneumatics/air-compressors-tools/compressors-tools/ar8021-air-receivers-surge-tanks-30gal-175psi?infoParam.campaignId=T9F&gclid=CKvE97XjsM8CFQpZhgodY5oK6A

i was also looking into this pump, or maybe something similar:
http://www.ebay.com/itm/Mastercool-90070-2V-110-10-CFM-2-Stage-Rotary-Vane-Deep-Vacuum-Pump-New-/281554519215?hash=item418df504af:g:rM4AAOSw~uhUrDiT

Id be pulling mostly ABS. .080 i think is the most common for making costume armor thats not to flimsy.

Crashmann sent me this reply to which i am greatful Smile
crashmann wrote:
Hi Lou,

The pump looks very similar to the ones recommended by other folks in the past. The power requirements look good - 110 volts AC, so no need to setup a special 220 volt circuit Smile

I don't know about the tank. It's difficult to find any details using a Google search. I would think that since the tank is rated for 175psi, then it should be able to hold a vacuum. It looks to be made of steel, so I wouldn't expect it to collapse under vacuum. You'll want to confirm it has an epoxy inner lining as well.

McMaster-Carr used to have tanks that would hold both pressure and vacuum, but they were super expensive - $600 plus freight charges!

My old rusty water heater is still holding up Smile

Good luck with your venture!

Charlie

_________________
Lou "Darth Voorhees"
TI/IC/TB/BH-6908
Empire City Garrison
Back to top
View user's profile Send private message
Darth Voorhees
Newbie


Joined: 28 Jan 2011
Posts: 16
Location: Oceanside Long Island NY

PostPosted: Wed Sep 28, 2016 6:59 pm    Post subject: Reply with quote

thanks crashmann! Oh the 220V was for the oven not the pump...if needed. Im going to be using the proto-form heat plates/tiles he makes to simplify the build.

But back to the pumps...i found this one also:
http://www.ebay.com/itm/172290520711?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

What do you think of that one? I dont have the cash yet, so that particular one will likely slip through my fingers. Just curious if i find something like this or similar if its worth getting or if the one i posted before should suffice fine. Are you still using that same gast1065 pump?

i got feelers out for a water tank/"ol rusty" of my own lol, and i found a few on craigslist that are $100-150 for a 30 or 40 gallon tank so i have that option also. Just trying to save a little here n there where i can.

thanks again for the reply bro!
_________________
Lou "Darth Voorhees"
TI/IC/TB/BH-6908
Empire City Garrison
Back to top
View user's profile Send private message
crashmann
Master


Joined: 27 Sep 2005
Posts: 496

PostPosted: Wed Sep 28, 2016 8:17 pm    Post subject: Reply with quote

The Gast 1065 pump looks like a reasonable price considering it comes with a motor as well, but that paint color - blech!



That power cord looks a little sketchy as well. I would replace it with 12 gauge cable, and wire it up to a switch on the control panel of the vac table.



I hate gate valves. It appears to be a valve to relieve the vacuum. I'd replace it with a ball valve. I love ball valves!



The oil in the exhaust jar has me concerned. In all of the time that I've had my pump, the oil has never traveled and collected in the jar like in the picture above. I suspect the previous operators may have poured it in, not realizing that is not where it's supposed to go. Or, there's something really wrong with this pump and it sucks oil through the system - yikes!

I wouldn't feel bad about missing the auction on this vacuum pump.

I've had my Gast 1065 rebuilt twice so far over 10 years of operation. The vanes wear out and it won't pull a vacuum anymore. I tried taking the pump apart to fix it myself, but there's some parts that are press fit and require more than human strength to move.



Fortunately, there's a service place just north of me in Pennsylvania, and for a reasonable price with a two week turnaround, the pump was back in action again.

Create a saved search for "Gast 1065" to ensure you don't miss out on a nice pump. You've got plenty of time before your table is operational, so be patient and you'll find a good deal.

Double check the ratings, but I believe most water tanks can go up to 150psi. I wouldn't trust a fiberglass tank to hold a vacuum (big implosion like an empty beer can!), but if you can find some kind of metal tank, that would probably do the trick. I got mine off Freecycle!

Charlie
Back to top
View user's profile Send private message Visit poster's website AIM Address Yahoo Messenger
Darth Voorhees
Newbie


Joined: 28 Jan 2011
Posts: 16
Location: Oceanside Long Island NY

PostPosted: Sun Oct 02, 2016 12:04 pm    Post subject: Reply with quote

Awesome thanks man! Yea i didnt think the oil was supposed to be in the jar either but im only mildly knowledgeable with the pumps thus far. Thanks for ll the help man, REALLY appreciate it. I'll set up the gast 1065 search on fleabay so i dont miss anything. I may get the first one i posted if it comes to im ready and still dont have a pump, then upgrade a little later on.

Got my mother in law on the look out for a water heater tank. She works for a construction company and they rip them out on a semi-regular basis, so hoping i can get one through them.
_________________
Lou "Darth Voorhees"
TI/IC/TB/BH-6908
Empire City Garrison
Back to top
View user's profile Send private message
spektr
Master


Joined: 07 Jan 2008
Posts: 425

PostPosted: Sun Dec 11, 2016 11:14 pm    Post subject: Reply with quote

Forget the water tank and get a propane tank, used a few for years....
Back to top
View user's profile Send private message
kayaker43
Expert


Joined: 13 Jun 2007
Posts: 171

PostPosted: Thu Feb 16, 2017 2:12 am    Post subject: Reply with quote

Hot water do work,... mostly. I do hear of the odd one that does collapse. could be thinning from rust inside. Could be that new stuff is made thinner than old stuff? either way an implosion is more scary than dangerous. Tall narrow tanks are more prone to collapse than short stubby ones.

Cheap air tanks can do it too, they are getting thinner each year as well. Its a crapshoot really but failures are rare. Its all about the metal thickness and I think propane tanks are generally thick enough to be reliable?

Gast makes dry vane pumps and they usually pull 25-26 inches of mercury. They often add a drip lubricator to keep the vanes sealed better and those usually pull 27-28 inches. The oil just passes through and collects in the exhaust trap. I am not sure if the vane material is different between dry and wet?? Its a total loss system, just refill the oiler and empty the jar occasionally. Mineral oil is the lube of choice.
_________________
Doug Walsh
www.build-stuff.com
Hobby-Vac and Proto-Form machine plans

Also other plans books and videos for people who like to build things
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    www.TK560.com Forum Index -> Vacuum Forming & General Stuff All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

phpBB "skin" by DewChugr


Powered by phpBB © 2001, 2005 phpBB Group