Hollow Cast A Complex Part - Rotational Casting Urethane Resin, Part 5

[@RobertTolone]

Here is a link to a downloadable PDF file with a list of the rubber, resins and waxes I use in my videos: www.dropbox.com/s/kz6mhmf7v5vpy7l/Material%20and%20Suppliers.pdf?dl=0

[@reesecasey5684]

i know Im pretty randomly asking but do anyone know of a good site to watch newly released movies online?

[@colemanaugustine3376]

@Reese Casey i watch on FlixZone. Just google for it =)

[@archerjesiah6539]

@Coleman Augustine Definitely, have been using FlixZone for years myself :)

[@reesecasey5684]

@Coleman Augustine thanks, signed up and it seems to work =) I really appreciate it!

[@colemanaugustine3376]

@Reese Casey glad I could help :)

[@davidheindryckx8692]

Just watching this video now, 500 subscribers ain't anything now. You're at 100x that now!! 1 year later! Keep it up, good stuff!

[@spencerkapp8034]

500 subs to 88k+ today. You are a treasure, sir. You inspired me. Your knowledge is incredible and your delivery is wonderful. I have been 3d printering for a few years now, but hit a wall on the production speed side of things. Mold making is the path to improvment and you have given me the map. Please keep teaching. As long as you are, I will keep learning. Excelsior!

[@B4dlands]

'Ive been casting since the end of the jurassic period' - i laughed sooo hard! well done Rob!

[@ronjlwhite8058]

SEVEN VIDs TODAY!!! This makes EIGHT and a series round up!!!

[@grubbybear1742]

Love all your clips especially this series! It's wonderful to see your passion and love for what you. Thank you for sharing your knowledge, techniques and inspiration. I got a big giggle when you forgot to insert the "butt plug" on the pup : )...........

[@MrJammyJake]

i just watched this today and saw your face light up to 500 subscribers. Now you have 71 thousand and i couldnt be happier for you. You just gained another. We need more people like you in the world!

[@RobertTolone]

Thanks for watching and subbing Jake. I appreciate it very much.

[@Kreepykrafts]

You're nearly at 100,000 today and I just found your channel!Absolutely binge watching all your videos for inspiration! Thank you 😊 🎉

[@rodeastell3615]

Catching up on your excellent videos ... thank you for posting them. On this one you are celebrating 500 subscribers ... you are now up to 53K+. Well done and thoroughly deserved.

[@RobertTolone]

Thanks for watching Rod!

[@bemccune7671]

I love seeing the excitement of having 500 subs, and now seeing you at 51.4k! Well deserved honestly.

[@leekestner1554]

I go up to see the vid and see the instructions on the side bar.! Thanks!

[@isaackershnerART]

watching this just now and the 500 Subs was sooo cute! way to go!

[@anthonybeasley7076]

Hi. This is Anthony from 10 months in the future. Dude! You picked up nearly 20,000 subscribers in 10 months!?!?! Nice going brother! I'm going to subscribe JUST because of that! Well... AND you do great work and put out great vids.

[@RobertTolone]

Thanks Anthony! I appreciate that you watch my videos!

[@khaphorarex6796]

Wow, 500 subscribers at the time of making this to over 50k now! So glad I found your channel. I watched one video to help me with a mold I had to make for shipping inserts and stuck around for all the amazing content. I’m 47 and I’m watching more KZbin than my kids since finding your channel. Thank you sincerely for sharing your experiences and knowledge and here’s to the next 50k!

[@RobertTolone]

Thanks for watching! Glad you enjoy my channel.

[@dianeharris2687]

Woo-Hoo!!!! 500!!!! Congratulations! Loved this last video. I think you are a f*cking genius to figure out all these processes.

[@RobertTolone]

People have called me a f*cking lots of things, but never a genius. Other people figured all this stuff out. I just learned it painfully and slowly over many years of trial and error. And yes I am thrilled and astounded to have 500 subscribers. Very grateful to you that you watch and comment regularly!

[@TitusKrakenDesigns]

I watched a couple of videos and then I got stuck here and got excited about the pug and tiki statuettes. : D. You are a good person and a very good teacher, you can learn a lot from the videos and the joy of life that radiates from you! : D

[@Sallyhomesteader]

Wow! You are wonderful at demonstrating your methods! I’m so glad I came upon your videos! Thank you!!!

[@RobertTolone]

Thanks Sally, I really appreciate your watching!

[@calv46]

Congrats on the 500, Robert! I'm learning a lot from your videos! :)

[@RobertTolone]

Thanks for watching Mari.

[@12shiraz]

Thank you so much We are learning from a master

[@RobertTolone]

A fool is someone who thinks they know everything. A master is aware of how little they know and never stops learning. Thanks so much for the compliment!

[@12shiraz]

Then .. A wise master

[@glowpon3]

Thank you for this series. I'm going to have to start moving my concept into rotocasting, so this was a perfect introduction to the process. Lot's of good tips of the trade in there too.

[@davesilva9174]

It’s an A+ in my eyes Robert! Thanks so much for tackling this “Pug-Mug” for me. Learned a ton watching your whole process and walkthrough on it. Hopefully my attempts at casting him/her/it, will turn out half as good. Will do a few in resin but intend on ultra or hydro cal castings. I think I’m definitely gonna need a tutorial(blueprint) on building the wooden roto-cast contraption...Congats on the additional followers too! More to come...🙌👍👌

[@RobertTolone]

It’s been great fun and a good learning process for me.

[@Deepmindsecret]

Robert the experience that you are sharing with us , and the last final approach of how to get rid of those little bubbles, trail and errors is what is all about, you are such an amazing person and professional, is a honor to watch complex objects being replicated, and as you said, you get this pretty close to perfection, im gonna be here waiting for that fixing of the rubber and bubbles, but pretty much this cast is 9.8 out of 10!.

[@RobertTolone]

Thanks Alberto! I appreciate that you watch and comment; it really motivates me to make more videos!

[@Dybs_]

Congrats on 500, now you're at 4.93K subscribers. Not long until 5000!

[@jonnymiskatonic]

Heck, now he's at 13.8K =D He's definitely found an audience

[@ArcticFlies56]

Bob, this mold and casting using the centrifuge tool that you made is brilliant! Yes you did have bubbles but overall the planning design was outstanding. If anyone can figure out the bubble issues it’s you. Best regards, Richard

[@beastlybombers]

You are approaching 20K subscribers bro!

[@RobertTolone]

It’s astounding to me! I had no idea what would happen when I started posting videos. The enthusiasm and support from the community has been fantastic and a real inspiration for me to keep making videos.

[@JoaoRodrigues-cb9zh]

These videos are just proper molding classes. Super useful stuff. Thank you for sharing!

[@RobertTolone]

Thanks for watching João!

[@vmailgil]

Great job!!!!👏👏👏👏👏

[@tylerbeasley7289]

I love watching you create. Your banter is great, love the sense of humor. Thank you for the great ideas.

[@RobertTolone]

Thanks for watching Tyler!

[@emmanuel8371]

love your channel dude! thank you so much for all the info.

[@RobertTolone]

You’re welcome Emmanuel. Thanks!

[@rich_3d]

12:30 I'm watching this video a year on and you've reached over 36K subs. Congratulations on the channel mate!

[@RobertTolone]

Yeah, it’s been an amazing experience! I’m really lucky. I read a lot of comments on other people’s videos and I have the best community on KZbin. Everyone is so nice and enthusiastic!

[@rich_3d]

@@RobertTolone Glad to hear it!

[@dougkehoe3758]

Cool stuff! Maybe vacuum resin in a chilled chamber before dumping ? Anyway...cool!

[@rich_3d]

4:50 you're a genius, sir.

[@RobertTolone]

I like to think so too but reality frequently reminds me that, uh, nope, not a genius…

[@rich_3d]

@@RobertTolone If not a genius, an inspiration. I'm currently shopping around to begin finally moulding and casting. Your videos helped facilitate this shift

[@ssouthboundpachyderm]

an easier way of banding the two halves of the mold together is to use a bicycle inner tube cut in to strips making basically really long rubber bands which you can wrap around and around the mold and then secure with a knot or simply tucking it in typically molds are bolted together but you have to build flanges on the jackets to have room for bolts

[@tracybrislin]

500 fantastic ! Your a life savior. Learning tons of great tips from your Vids. Frustration seems to be delt with in such positive ways (so what will work) try something else!

[@RobertTolone]

Thanks Tracy, I appreciate that you watch and comment! Really makes it fun for me.

[@xuantong1106]

thank you so much for the amazing content!! the detail and tackling of issues is really helpful, learnt a lot :)

[@RobertTolone]

You're very welcome. Thanks for letting me know!

[@leabrunet-wong8625]

you're amazing Robert! happy to see your channel has grown so much since this video ! :D

[@RobertTolone]

Thank Léa!

[@lawrencejordan5811]

Very informative. Love your incisive comments.

[@RobertTolone]

Glad you enjoyed it. I hope it was helpful to you!

[@shemwilson5764]

Hey man I'm glad I came across you! I really like that too cast machine. I'm gonna build one. I wish I would have seen you before I did the mold I'm working on now. I make a lot of complicated models and I would like to see your approach.

[@RobertTolone]

Hey Shem, send in a project and maybe I could do one on the channel. Send pics to [e-mail]

[@thelmy7473]

Although I'm two years too late, thank you so much again for the great video. I wonder if you could add a small motor to the outside frame of the rotation machine and maybe an extra weight to one side of the inner frame so that it will keep turning too?

[@haenselundgretel654]

You're amazing!

[@RobertTolone]

Thanks for watching.

[@levinebette15]

Congratulations on 500!

[@vsmash2]

Congratulations!

[@RobertTolone]

Thanks so much!

[@Magicguy33]

Awesome video Robert, I was in complete anticipation for the resin pour and I’m glad to see the results finally! Just a few questions: Would a thin initial layer of resin help with the bubble issue? Would mold release help the mold last longer? Did you use platinum cured rubber silicone for the mold? Once again thank you so much for the videos, I’m hoping to start my own channel this year!

[@RobertTolone]

Hi Anthony, thanks for your questions. That would be my first plan, brushing resin into the mold to wet out the details in the hair. Then quickly closing the mold and rotating the rest of the resin layers. Release agents are trickier. It is possible that a release agent could either make the problem go away or make it even worse! Only experimentation would tell. It’s not uncommon to lose the first casting out of a mold. You evaluate the flaws and figure out the remedy and go on from there. It is expensive and painful to waste the resin but that’s just part of the cost of the process. In this mold I used a tin-based rubber to lower the costs. Also I do not expect my viewer to make a long production run of castings from this mold. So platinum silicone was not my choice for this project.

[@Magicguy33]

Robert Tolone Thank you for answering all my questions! You’re great at what you do and I look forward to the follow up on this mold.

[@itzcaseykc]

I would say it's an A- due to the fact the original had bubbles already. All you can do to make those bubbles disappear is to fill them in, but they're small as it is. When paint is applied, it may actually cover them up easy enough.

[@wesleycornelius5059]

Can this method of casting be used for pewter?

[@sonnybie6194]

Grats on the 500!

[@RobertTolone]

Thanks! You guys fire me up to make more videos!

[@RichCreation-t7w]

can you advise the slow setting resin type/name you use for the roto-casting. currenlt only use PU resins, but these as noted seem to go from liquid the set in a very sudden timeframe. thanks again

[@soniabenito3142]

hi Robert! Your videos are so great!! i would love to ask you what type of rubber silicone would you use to make a mold of a coin??? I have watching loads of your videos and searching on the internet. but I would love to know your opinion on this as you are amazing! thank you so much!

[@davidlacey6417]

Enjoy watching the process,looks good😀.Would you still get bubbles from a solid cast.Thanks

[@RobertTolone]

In a solid cast I would have put the mold into a pressure pot and crushed out the bubbles.

[@edwardmurray2284]

Wonderful techniques, love the way you left the cut seam visible. I wonder if ou vacuum degassed the first coat of resin? Maybe a resin with a slightly longer pot life to allow for that, at least for that beauty coat. Its probably not bubbles in the resin, but pockets of air getting trapped while coating, but just an idea. What about casting this with the expanding foam with the skinning layer? Would that work?

[@RobertTolone]

You could use expanding foam but the trick would be to get it into areas like the leg sticking out without having the foam push the mold open. But it’s doable.

[@lawrenceheyda8009]

Hi Robert! Very educational and comprehensive! Can I ask why you use Silpak resin instead of Smooth on? I'm using Smooth on and getting very fine surface bubbles all over my piece. Will Silplastic be any better?

[@RobertTolone]

Both are excellent products. I use Silpak resin out of habit and loyalty. When I began casting resin there was very little information available by way of books and no Internet in sight. Silpak’s owner spent a great deal of time explaining rubber, resins and casting to me. I rewarded them by becoming a loyal customer who has spent many thousands of dollars buying rubber and resin over the last 30 years. It is interesting to me that the materials I use today are identical to the ones back then. SmoothOn is a great company and they have offered to supply the channel with materials. I would not hesitate to use their products. I have not done so on the channel because of my relationship with Silpak.

[@kainoctis7724]

Doesn't dusting the silicone with talc minimise the bubbles?

[@RobertTolone]

People swear by that method but it never worked well for me.

[@davidmccauley7068]

Hey Robert! Did you make your pressure tanks? I really need a setup like that!

[@RobertTolone]

I designed them but did not make them. I didn’t trust my welding skills! They were fabricated out of brake cylinders from trucks.

[@theantichrist6524]

I liked the video hopefully you can pull at least 150 castings from the mold before it fails I did want to ask how much money it cost you rounded to make the mold and hard shell

[@RobertTolone]

Guesstimate is $80 to $100.

[@kaioken654]

I haven't seen a whole lot of your videos yet but I was curious if you've told your audience of how you got into mold making in any of your videos?

[@RobertTolone]

I am a sculptor doing mostly toys for the entertainment industry. Because I sculpt in wax I had to learn to make resin copies of my work.

[@kaioken654]

@@RobertTolone that's pretty cool, are you familiar with varnerstudios, they sculpted a lot of the original ninja turtle toys

[@RobertTolone]

@@kaioken654 I have heard of them but don’t know anything about them. I made some teenage mutant turtle sculpts for fast food toys years ago.

[@kaioken654]

@@RobertTolone really, man you should bust out some of your old sculpts in a video like you did that Taz head. There's probably a good chance I played with one of your sculpted figures as a wee lad. Well I love your channel and I wish ya the best.

[@RobertTolone]

@@kaioken654 Thanks!

[@leekestner1554]

Robert do you have a schematic/pattern that explains how to build the rotation device. I have a piece that needs one of those to cast it.

[@RobertTolone]

I don’t have schematics because I build rotators to fit the project. They are that simple to make. It’s just a frame rotating inside a larger frame. The larger frame is attached to 2 uprights that support it. The two frames rotate at 90° from one another. It’s best to leave a good amount of clearance between the frames and the uprights because of clamps that you might attach to the frames. Common 1/4- 20 bolts are all you need for shafts. You don’t need fancy things like bearings, gears, etc.

[@Cherriroll]

Hi Robert! Thank you so much for posting these videos, they've been a really helpful resource to learn from for an upcoming project of mine. How do you think this type of mold would hold up to a figure with a lot of sharp spines and spikes? I've sculpted a polymer clay replica of the dragon Paarthurnax from Skyrim and would like to do multiple hollow resin casts. It's a little daunting... Any advice would be a great help!

[@RobertTolone]

All those sharp spines pointing in every direction are a serious challenge. In a rotational mold it will be difficult to get the resin to flow out to the sharp points. And then you have to demold very carefully to avoid breaking the spines off. Really difficult. One way to solve it would be to mold and cast the spines separately and glue them in their sockets. But then you have the problem of the tattered wings and very textured skin surface. If this job was in my shop, we would break the model into many pieces, cast it separately and assemble it. No doubt, a really challenging molding and casting project.

[@Cherriroll]

@@RobertTolone thanks for your feedback! I'll have to spend some time studying my piece to see where I can break it down, if at all. I have a friend who works with making rubber costume masks, and he suggested taking thin wire and using it to guide the resin down to the spikes, and then continue as normal. He uses this method for when he has go cast a mask with sharp teeth or horns. This is definitely my biggest challenge yet. But I'll still have to give it a try!

[@herbertwyndham]

It's been 5 videos, and he still hasn't said "pug mug plug" yet. There's only one video remaining. WILL HE SAY IT! Only time will tell

[@OregonDARRYL]

It's gravity that you are applying evenly to the mold by using this device.

[@Beardeddisciple777]

hello Sir, can you make a big hollow ball with clear resin? im going to build youre turning system. i would like to see the prosess of how to make a hollow resin ball.

[@RobertTolone]

A ball is the absolute perfect shape for rotational casting. It is also probably the simplest thing you can possibly rotocast. All you need is a mold in two halves and a small pour spout with a plug. Any of my rotation videos will show you how to do it. Clear resin is tricky because it usually cures slowly. so you have to rotate it for a long time. Also, you have no way of controlling the inner walls of a rotational casting. Therefore, if you get uneven walk thickness or drips inside the casting they will show up when you look through the globe. Such irregularities don’t matter in an opaque resin casting.

[@Beardeddisciple777]

@@RobertTolone thnx Robert for the advise 👍🏻

[@deanrowson]

baby powder the mould to get rid of those bubbles