DIY Pressure Pot for resin casting
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- Опубліковано 13 вер 2018
- On this episode of Bens worx i convert a 10 litre paint pot into a resin casting pressure pot.
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Quick bit of advice for anyone making these from the pressure pot from Supercheap auto (where I think this was from).
You don't need to cut the pipe - The pipe is screwed in quite hard, but if you pop the pipe side into a bench clamp and just turn the lid on it, it will unscrew leaving the perfect opening for what you need.
The pressure valve in the supercheap one is positioned right where it needs to be. Leave it on. You can see in some of Ben's later videos that he has put a zip cable in to stop it popping too early. There is no need, as you can adjust what pressure the valve pops at. There's a brass circular piece that runs around the centre pin that can accomodate a flat blade screwdriver to be turned.
I have no experience with doing anything like this, but you lay it out so simply and easily that I think I might be brave enough to give it a try.
Just picked up one of these model pots for $90 at a garage sale ($282 new at Supercheap at time of writing), so keen to use it for resin!
NICE!!! I recently got into resin casting and making molds, I am trying to make copies of my action figures for making custom figures. I recently had a lil trouble with getting bubbles in my casts and saw that a pressure pot is bout the best method to get rid of bubbles. LOTS of great info in your video man, thanks!
Thanks for the video. The pot you used looks almost identical to the one I just got off Amazon. Getting some parts and will try this myself. :)
Nice one Ben welcome to the big league I have so many tools that I wish I'd gone bigger with from the start so when I got my pressure pot I made sure I went straight to the 40L so I could do the larger castings. The real expenses is the resin though oh well nobody said it would be easy lol
Wow 40l that’s awesome!
Hi Ben from the uk I have followed the way you did this and it’s worked out great keep up with the videos 👍🏻
When making small casts, to reduce the amount of air the compressor needs to add (therefore the time to achieve desired pressure) part fill the vessel with an appropriate amount of water and a spacer - eg inverted flower pot. The water is incompressible.
What sort of tiny compressor are you using that that would save any time? From the time he opened the valve to the time he closed it was four seconds, and even if he sped that up by 2x, that's still just eight seconds.
Awesome video, very insightful and an easy DIY, definitely making one the same way
Thanks Mate
Thanks for your video on this.. looks like my retirement will be busy !
Thanks Ben 😎🇦🇺🇦🇺👌👍
No worries mate
This is just what I needed; thanks so much for sharing!
No worries mate
great conversion, hoping to do one soon as pressure are crazy expensive in NZ - I think it is Peter Brown recommend to spray mold release on top of the epoxy to break the surface tension so that any bubble that do come to the top pop.
Thanks Mate, I’ll give that a go
Great tip! Was looking how to modify a paint sprayer with pressure tank for resin castings
Maaan you gotta make my dreams come true,i love woodworking and I don't have someone or somewhere to learn it from.
Hi Coomaar, hopefully you can learn from my videos
You make it seem like undoing all these parts is sooo easy. I'm busting a hernia trying to take the bits off the pot I just bought.
Agreed, this is brutal. What are you using?
@@Zeophyle I eventually got mine off with the liberal use of heat, via my hair dryer aimed at the joints and a pipe wrench. It wasn't easy though.
Well done Ben, quick ,to the point and simple. I think all the other videos on this should be removed. Over complicating with extra ball valves and regulators not needed, using the wrong tools and droning on for 30 minutes. Yours is an Excellent video.
Very straight to the point. Thank you!
No worries mate
Beautiful 👌🏻
Well-Done of an Intro!
Thanks Noah!
Superb!!!!
Hi Ben.. did you ever sort out what was causing the bubbles to form on the top? Be great if you could add the remedy for the viewers... thanks
Hey ben thanks for the amazing video. Nice and simple to follow which i appreciate. Can i ask where you got all the items needed? was it bunnings or somewhere else?
Love the vids, learning a ton! just wondering what would happen if you interrupted the pressure early/mid cure to flame off those top bubbles?
would really like to know too
Would this support going into negative pressure using a vacuum pump? And if so do you think it would garner a better result?
Hey, what size was the connector from the ball valve to the pressure pot ?
Very handy, might look into making one of these. Is a small air compressor all you need to use with it?
I commented on your smaller pot which has answered some questions. However im still curious if i can put for an example a red solo cup filled with bubbly resin in the pressure pot, and take it out while its still liquid, like a prepour? If so hoe long would I leave it in the pressure pot before removing it to pour into my mold?
Do you think it’s possible to leave the paint outlet pipe from the inside attached if using the same connections on top?
Hi Ben, loving the channel. I'm just starting out on the resin casting and I have a question if that's ok. I have a small air compressor that I run my airbrush off, can I also use it for a pressure pot? I think I would have to swap out the scew in airline for a quick release one to.
Andy.
If it will pump up to 60psi it should work
this might be a daft question but when its filled with pressure can you just turn the valve to release the air?
Hey Ben, so you use a GoPro in your pots right? Do you know what psi those are safe at and how to use them in the pot?
Hey Ben how you going, I got the same tank as you, but how did you get the pressure gauge off, it's well and truly on with the tape sealent, what if you can't get the safety release valve off?
That's good sir is genius do think would take out the safety just for some extra psi to make sure them bubbles don't destroy any work next is vacume chamber to stabilise some things with resin
Thanks Twigletts! I agree 50psi is definitely on the safe side, and yes vacuum pump is on the list :)
@@BensWorx wicked can't wait to see that then you can stabilise all sorts of things which should make some kickass projects 😎
Yeah will be fun to experiment
This is my next step. Out of curiosity, what size compressor are you using?
Could you use this same set up as a vacuum chamber instead of pressure? Maybe for stabilizing wood with Resin?
Hi Bryan, yes Just connect a vac pump and draw a vacuum and it would work
So can you mix your resin and put it into the pressure pot for your pour? How long would you leave it in?
Ben I'm following your guide for the same pressure pot. Did you get your bits at bunnings? I had no luck but will try a plumbing store.
Hi Chris, if you bought the same pot as me you should only need a ball valve and an air inlet adapter which is available at bunnings in the tool store section
Wait. Did you remove the safety walve? Or is the safety walve the thing you add on the opposite side of the pressure gauge?
What products do I need to make a large one
Ben I have recently found your Chanel and I love the detail you go into. I was wondering what brand of pressure pot did you use?
It's been four months, so I don't know if you've gotten your answer yet. But it looks to be a 10 Litre Blackridge Paint Tank, you can get them at Super Cheap Auto for roughly $230 dollars.
@@TechnexGames thank you I didn't get a response until now, but I was able to find a decent pot at harbor freight tools that works for now.
I am -1 knowledge check on this kind of stuff.
The modifications you made ... I can get that stuff at a normal hardware store?
ok i'll look again, prob just take the lid in with me. Do you know if supercheap would also have them?
I would think so, there just standard air fittings
Hey Ben, great work. I've bought my own pot to make one and you're instructions are simple and straight forward.
Do you think those bubbles could have resulted from moisture entering the chamber from the air-compressor?
Hey Mate, I don’t think so I’ve done many more castings since and never had a problem. Good thought though
@@BensWorx Do you remember what PSI setting you used? My max rating is 58 but was wondering if I'll ever need that much or more?
I run between 55-60 psi
Thanks for the video!
Do you happen to know if the thread type on these fittings are BSP or NPT at all?
I believe there BSP
BSPP (parallel thread) or BSPT (tapered thread).
i went there and the plumbing section! could find a ball valve but not the appropriate adapter! the ball valve tho was in plumbling so maybe i need and adapter to ball valve which i couldnt find either. it drove me nuts!!!
Nah don’t use the plumbing ones, the tool store section has the ones rated for high air pressure and have all the adapters in the one section
Chris I dont know if you are still trying to build yours but I have listed the parts that were used in a comment to JB Clarricoats above. You'll need a gas adaptor from the bbq fuel section and the other 2 parts you can get from the tools section where they sell all the air tools and compressors. You can get it all from Bunnings. Hope this helps as it took me a while to work out what parts I needed !
So I'm still new to resin casting and I recently bought a vacuum chamber which I'm finding isn't as effective for what I make so I was wondering if the same vacuum pump i got for the vacuum chamber would work for filling the pressure put with air?
Unfortunately not, you will need an air compressor
Hi! I think I have the same pressure pot but I just CANNOT get off the part that connects the pressure gage. Can I ask how your managed to take that part off?
I have the same issue...
Where is the pressure relief valve?
If you can apply a vacuum for a bit it will draw out a lot of the bubbles, then apply the pressure.
You can get a cheap "venturi vacuum generator" for about $30 - it's slow to build vacuum, but you can use your compressor to make vacuum, which is pretty cool.
But I'm sure you know - this will make almost all resins boil. So a deep container for the cast is almost a must. You little ice cube trays probably would have lost 1/4 or more of the resin.
Hi Don, a vac generator will be a great addition
I know this is an old video but what did you use to go from the half inch down to quarter inch coupling for the air jntake?
hi, i believe that would be a part called a "reducer"
Hi Ben. After searching everywhere I could think of within Australia, I couldn't find anything specific for resin casting so I've just purchased this. What size ball Valves did you get and any further recommendations for a perfect conversion? For a total newbie who can't seem to get on top of bubbles no matter what I do. And I'm trying to cast dice which are super finicky with the casts. A vacuum chamber just won't work well enough for it still. Any further info on converting this would be massively helpful if you can please. I'm struggling so much and want to make sure I do it right.
Also are there any specific compressors that should be used?
hey ben, love your vids m8 but could ya leave a link to pressure pot. I tried looking online but I couldn't find one from a trustworthy seller.
Look for a paint tank from supercheap auto mate!
So I don’t need to attach the regulator? Its optional? Cause almost everyone mostly still has it attached that’s why I’m asking. Sorry for so many questions just paranoid about building this 😂😂😂
The regulator just controls the outgoing pressure, since there isn’t any outgoing pressure it’s not needed, just don’t over fill the recommended pressure, and yes be paranoid it’s a lethal weapon. Take Care
How do you get the T-bar bit off so easily? Seems like it’s welded down or something on mine.
Yeah it’s extremely tight but it will come off
Ben great video. But where were you a few weeks back. I brought my paint pot from Supercheap and I had a few issues, as my safety valve kept leaking (not blowing). New safety valve, all good now. I saw you left the pipe in and only cut it down. I managed to remove it and replaced it with an elbow. This allows the air to be directed out to the edges and down, where with the pipe, it's blowing the air onto the blanks.
Thanks Pop’s! I had to chase a few leaks too, and the elbow is definitely needed, I just added a rubber elbow to mine 👍 what psi are you running?
Because I did what most guys do (I think) I threw away the box and booklet. Haha I forgot to check, what's the maximum pressure. So I only took mine up to 40 bars and the blanks turned out great.
Next job is to make a flat bottom for inside the pot and also a rack system.
Stuart
Hahaha it’s rated to 50psi but you would think thats airing on the safe side, i just cut a round piece of wood and it sits on the bottom perfect, a rack system sounds cool, thanks Stuart
hi there Pop's Woodwork and Ben's Worx, I have just ordered one of those SCA paint tanks and will pick it up tomorrow , can I ask what elbows and ball valve? parts you bought from Bunnies - any chance you could just provide me with a link to those parts so I dont look like a knucklehead trying to explain to them what I need lolol. I just want to get in there and out because of the Christmas crowds - thanks for your help guys , am so eager to try this out!, cheers Ruth
Hi Mate, the only thing I bought from bunnings was a ball valve and a filling valve, everything else you need comes with the pot
Hi, thanks for your video. Could I take exactly what you've done here but use an old (cheap) pressure cooker and pump in air via a tyre foot pump? Same principle? Thanks Mark (UK)
Hi Mark, I’m not sure mate, does it have a pressure gauge? Please be careful
@@BensWorx Hi, thinking of fitting one as you have done here. This is the pot I mean..www.ebay.co.uk/itm/9-Litre-Stainless-Steel-Stovetop-Pressure-Cooker-Stockpot-With-Glass-Lid-2-in-1/333463200250?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
a bit risky mate with the glass lid
can you convert a pressure cooker into use for a pressure pot? I see that most of them are used at 10 to 15 psi
I wouldn’t recommend it as most pressure cookers have a glass lid
Can I use a bike pump instead of a air compressor? If so is it a specific adaptator I need to purchase. I’m trying to reproduce my figurines that I made. New to resin casting for the past 3 months. The only problem I got so far is building a pressure pot.
Yes you can but you’ll be pumping for a while, you need to get a metal tyre fill valve and use adapters to make it fit
I attached a Schrader valve to the pot instead of an air compressor valve. To pump it up I use a portable digital air compressor pump for car tires which plugs into the car cigarette lighter. I just set the PSI digitally and push the button. This way you don’t have to own an air compressor and neither do you have to pump it by hand. Thanks for the video Ben :)
Great idea mate
Hey mate, I’ve got a very slow leak in my pressure pot. Will this effect my cast?
Can you keep the pressure above 50psi for at least an hour?
Did you make a how to video for your small one before this one?
Yes
I really cant afford a paint pot.. I know Pressure cookers can only take 15-20 PSI max, would that be good enough to get rid of bubbles? I mean any pressure is better than none, right?
20psi will work to some extent
I’m about to buy a pressure pot to do the same thing. So I’ve a newbie question. What do you use to add the pressure?
You need an air compressor
Hey Ben great video!
Did you need to add anything to diffuse the air coming into the pot so it doesn't disturb the resin or was everything ok without a diffuser?
Thanks Beau, I ended up glueing on an elbow to deflect the air to the side
@@BensWorx did you glue it where the inlet tube was ?
The inside bottom of my pressure pot is curved like a bowl, what do you suggest I put in there to make a flat surface to set my resin work on???
A piece of timber will work
@@BensWorx thank you I will try that
Currently trying to convert this exact pressure pot. It is exceptionally hard to do - I need a vice or something.
I've also managed to damage the pressure relief valve.
Any suggestions on how to convert it a bit easier?
How’d you go? I’m having the same trouble
@@KatieMcLovin1 No luck. The guys at supercheap said to just bring it in so they can see if they have replacement parts.
It's in the "too hard" basket.
We just got one from supercheap, and it looks like they are using some type of sealant for the screw in parts. I snapped the T piece trying to remove it. I did get it out, but I needed to heat it up with a gas torch. You might be able to heat it up with a paint heat gun, but I'm not sure if that would be hot enough.
Got one today, my t adaptor snapped at the join when I tried to get it off, lock tightened on. So now $300 down with nothing
did you ever fix this? same thing happened to me
Surely a suitable bolt, nut and washer with application of epoxy glue would ‘fix’ that?
where did u buy your pressure pot from? :)
So I’ve gone and bought the pressure pot (exactly the same as yours) and a compressor but now for the life of me I can’t find a ball valve that fits. I even went to a specialist pump supplier and no luck. I’ve given up on that because no one seems to know what thread size it is. Guess I’ll just weld a ball valve to it
What is the pressure pot he is using?
Total tools (if you’re in Aussie and ones near you) should have a 1/4 male to female ball valve
Haliti , it’s a Black Ridge available from Supercheap Auto
Just to make this you can go buy a pressure pot already made for the price of or cheaper then a paint pot
do you need a male male or male female...female female ball
valve connector?
We recently built this same pressure pot and tried it out. It definitely got rid of the bubbles, however, on my pyramid shaped mold, the resin comes out looking like a mirage. Is there anything I can do to fix this? It isn't doing it on other pieces. Any advice is welcome! Thank you in advance!
Just check your ratios are correct, the pot shouldn't have any effect
@@BensWorx It's a 1:1 ratio and it isn't having that effect in any of our other molds or work. I'm thinking maybe it is the wrong resin for that shape. Maybe it's getting too hot or something and creating that weird look. I will try experimenting with different resins and see if it makes a difference.
👍
Hi Ben, what type of compressor are you using? I'm wanting to cast some small resin pieces. Thanks.
2hp 50L
If you need to reduce the volume easily, part fill the chamber with water, fit an inverted spacer (inverted flower pot?). This should reduce the time for your compressor to achieve the necessary pressure.
The dip tube unscrews from the underside of the lid and you should keep the regulator. Put the ball valve between the regulator and lid.
Mine doesn't unscrew. I just tried. But I also can't seem to unscrew the regulator. 😂
@@channymichelle got a pipe wrench for the tube? A big wrench of the right size, or an adjustable one, should do for the other parts.
@@greggv8 I don't on hand but I've given up for now and will be enlisting my uncles help on Wednesday. I'd be surprised if he didn't have a pipe wrench. Might have to try that. I can't even find my single wee spanner. I can't even unscrew the damn gauge. The only things I can screw and unscrew are the side grips. Everything else is not even budging.
Hey champ, what’s that brass nut on the other side of the inlet valve? I have the same tank and I’m working on it but I don’t have the correct size threaded ball valve.
It’s a reducer i had lying around, another subscriber asked the same thing and she ended up using a gas fitting from bunnings
Ben's Worx ah got ya! Cheers dude!
@@jbclarricoats5941 this is the brass gas fitting you will need www.bunnings.com.au/gasmate-brass-gas-adaptor-converts-bbq-inlet-from-1-4in-to-3-8in_p3180735 go to the bbq fuel section to get this part. IT NEEDS TO BE THIS GAS FITTING - DONT BUY AN EQUIVALENT SIZED AIR FITTING - IT SIMPLY DOES NOT FIT. It took me a while to work that out so this will save you the hassle
The other two parts you will need you can get from the tools section where they sell all the air compressor parts/accessories. These are
1) www.bunnings.com.au/jflex-1-4-bsp-female-mini-ball-valve_p6270745?fbclid=IwAR2nuh7AeqCxXRO4HZ0hriLoS0K79FUPrL2a8q_QdsPS2aF1IXTLq-qJjiM and 2) www.bunnings.com.au/powerfit-1-4-nitto-style-male-plug-air-tool-fitting_p6210530?fbclid=IwAR0Rhbi6frcWT9A0YjDrLj7uD3VomBRNtPLkOsDGAQDqI6umdE3-S6JqdRs (if you have nitto fittings - choose a different style if you have a different type of fitting but basically it needs to be a 1/4 male coupler.
I was able to get a good air seal on the tank just using plumbing tape
@@weldmama Thank you so much!!
@@weldmama YOU ARE AN ABSOLUTE LEGEND THANK YOU!!! :)
Just got mine set up but unfortunately my pressure safety valve is blowing off at about 37psi. I guess a replacement is in order. All the best, Brian.
👍
I'm having the same issue with my safety valve. Mind if I ask where you got your replacement from? Thanks in Advance!
@@auditri I bought one from evil bay but I think you'll be able to get one at Bunnings, Total Tools or a similar store.
@@briansbuildsandoutdoors4936 - Thanks for the reply. Not having much luck finding one, been to about 10 places locally, and even on evil Bay. Thanks anyways.
@@auditri let me see if I can find a link.
i want to buy the same pressure pot, but whit model is it ?
Just a 10 litre paint spray pot there basically all the same
Hey mate - I can see that you're still using the same pressure pot in your recent videos.. Are you still pressurizing to 50PSI or have you moved up to 60PSI?
Cheers!
It’s now closer to 60
Rando question - Where'd you get the silicone tray insert?
My local department store, it’s a silicon cake mold
@@BensWorx - Thanks heaps! Love your channel!
You have a link for that pot ?
It’s a paint sprayer pot from super cheap auto
I am testing out my resin with a pressure pot. Just to get a feel for it I mixed only 1 oz in a cup and brought it to 60psi. How long will that small amount need to stay in the pressure pot. I am shooting for a clear cast because I intentionally mixed it to make bubbles. This is definitely a test just to see if pressure pot can stand up to the claims. I cannot begin a bigger project until I know I can get something clear.
I have the same pot and FYI that paint tube is threaded. Next time don't cut it, just unthread
Just the model pressure pot I've been setting up this week, so the video was appreciated in figuring how to do so.
@1.31 The paint suction tube is actually screwed on. Some large locking pliers, elbow grease and a few curses and you could remove it. Some heat can help loosen the Loctite on the thread. Handy if you ever wanted to use it as a paint sprayer or sell the pot in the future.
تاثیرش روی رزین چیست 👍
👍
I dont see your buy list of extra parts you needed....
Does this speed up the resin cure time?
Not really, it’s mainly designed to eliminate bubbles
@@BensWorx Okay, thanks again. Making one today!
""diy"" where??
Its not DIY !
hello bens,great video,how's your old pvc hold againts high psi? i had my diy vacuum chamber from pressure cooker,but for casting tiny part with high detail (scale modeling) the bubble keep trapped on the edge of the mold,so im thinking about pressure chamber,i even got crazy idea about turning the pressure pot as one lol,but i think it wont hold more than 30,what do you think?
Hi Yuwan, Thankyou! I wouldn’t put more than 20psi into the pvc chamber and you definitely need more than 30psi for high detail work, you need to be running at 50-70psi for great results