Plus, Molding A Snow Globe.

[@RobertTolone]

Here is a link to my materials and suppliers: www.dropbox.com/s/kz6mhmf7v5vpy7l/Material%20and%20Suppliers.pdf?dl=0

[@FranNyan]

My grandfather used to cast metals, but due to health issues, he had to stop before I was able to actually learn from him. Your videos very much remind me of him (even if he had much more of a sailor's vocabulary, even around the grandkids) and even if the materials are different, they feel quite a lot like what I imagine I would have learned from him if I had been able to. Just wanted to thank you for that.

[@RoamGaming]

i did some small scale metal casting for jewelry at one point in my life and some of the steps are near identical.

[@montarsisminiatures]

Where have you been all my LIFE 😂. Fantastic teacher.

[@Imickskrals]

Every time you say "There's a hole in the bottom" I just broke into song "There's a hole in the bottom of the mold" and clapping my hands in my mind. Excellent work, I love your videos and I've learnt so much!

[@RobertTolone]

So glad you enjoy them. Thanks for watching!

[@haywardhaunter2620]

Seeing your experiments go less than perfectly (and how you adapt) is more informative, entertaining, and inspirational than when everything comes off without a hitch. I recently attempted to rotocast a similarly sized, mostly round object, and I made a mess of it, so I'm looking forward to part 2 of the snow globe.

[@mr.joshua204]

He reminds me of my grandpa. My grandpa had a huge garage and a study that he'd use for wood projects and he would always be building car models. He got me into model making and ironically molding and casting

[@galfawker339]

Master of mold making and resin casting. You are in another league, no fancy or high tech stuffs to show off, but your skill, experience and knowledge. A true master indeed

[@dodgeramsport01]

Its always about skill, experience and knowledge! Tools dont matter if you know what you are doing

[@bigredlego]

Love the scale! Very tool has a use, and this scenario definitely calls for a balance scale

[@levinebette15]

I can’t wait for the sno globe! The clear cast was promising!

[@garywheeler7039]

I wonder if by chance the longer liquid time, 20 minute, clear product would give an even coating to the snow globe mold, then much of it drain out to the bottom. Leaving a somewhat thin but even coating to the mold. Say rotating the mold for only 5 minutes.

[@flickpad]

Really enjoying your videos. Thanks for passing on your experience.

[@holzmann8443]

If you decide to continue working with clear resin, warming parts A and B can greatly improve flow at the cost of working time. Pressure casting seems to cure it much more quickly than the label states too. On Peter Brown's channel, he cured art resin in 4 hours instead of 24 in the video "resin casting: pressure vs vacuum". Clear resin also becomes harder over the course of 3-4 days, on art resin's website they say to wait 72 hours before shipping projects so your client doesn't receive a permanently distorted piece of art. Great work on the tiny car window and headlights, you are clearly the right man for the job when things get that challenging.

[@RobertTolone]

Good suggestions, thanks! I ordered some urethane clear casting resin and the supplier recommended that I heat the resin and mold to 100°F. So I will definitely be applying heat when I cast the snow globe.

[@flytrapjohn]

"Not a bad little job there, Bob."😁 Thank you for doing this.

[@thilnisha]

Yes, that scale is better than any digital scale.

[@OakfieldDon]

I have been feeling like a kid on Christmas eve all week waiting for this video to come out. Can't wait to see part 2. I'm taking good notes. Thanks again for doing this project.

[@fuzzpuppets]

Your videos are yet another reason why I love Fridays! I appreciate the time, effort and massive amounts of information that you share, thank you.

[@RobertTolone]

Thanks Larry!

[@fredrikoregard832]

I like the scale! 😁Allways a good idea to have a plan B, if you dont have any access to batteries och if there is an temporary power outage. Nice result with the clear resin. One thing for long cure time it maybe can get away all theoraticaly bubbles when it is in the vaccum chamber. 😁👏

[@nyko4972]

I don’t know that I could be accurate with those scales but I was watching another video and was thinking you are more accurate with them than I could be with the best digital scale

[@ellishansen8115]

Just found your channel and I love it. You've probably realized this by now, but that resin will cure completely hard. The smaller or thinner the pour, the longer it takes to harden, but it will harden.

[@lskanon863]

Thank you!

[@JohnAldred]

Man, your channel just exploded lately, Robert! Nice to see you growing well :)

[@lorrietoole2115]

Omg. U a talented teacher and I cannot wait to watch all your videos

[@RobertTolone]

Thanks so much for watching Lorrie!

[@evanmonsma3928]

You're convincing me to buy a triple beam balance. I've gone through multiple digital scales, they just don't last

[@RobertTolone]

Me too, I’ve trashed several of them. Also, batteries die, usually in the middle of an all-nighter when you’re jamming out castings for a 9 AM meeting!

[@vespadano1979]

I've learned so many cool tricks from this channel in the last two days. I feel like most of the frustrations I've had trying to learn this stuff have been solved.

[@AroundTheSouth327]

Id like to recommend Platsil 73-15 from brick in the yard mold supply. I love it, it's nice and clear. I cut parts out with precision every time and seems to last, i have molds over 2 years old.

[@simonewild806]

I love your videos. And I don't even work with casting or resin. Your videos are informative and interesting either way. I wish you all the best and a gazillion subscrlbers!

[@totalhobby1]

Wow clear resin casting.... can you do a video on your pressure camber.... radical design....how can i fabricate one?. Thanks for sharing

[@CrunchyMcDugals]

Audio's much better this time around. Nice!

[@TripleXmodder]

Thank you Robert for your awesome videos! Subscribed and watching the catalogue.

[@wollibar5263]

Again very interesting and fun to watch, one way to make dull surfaces gloss and clear is to add an ultra thin coat of resin over the cured casting works magic an does not alter the shape, fit and size of the casting at all. Perhaps you want to test it on the sprue. Thank you for sharing.

[@RobertTolone]

Do you use the same resin to coat the model that you used for the casting? I definitely want to try this out. Thanks Wolli!

[@wollibar5263]

@@RobertTolone Yes, the same resin as for the casting just applied thin with a soft brush. I was just thinking if a swirl of resin inside the bulb casting would do the same trick? But I do not know. Regards from the Rhineland Germany

[@RobertTolone]

@@wollibar5263 I am going to go to cast the snow globe but then I may give you a method to try and just paint resin in it. I suspect it’s going to leave a visible parting line however.

[@victoriage]

As someone who loves yogurt for its taste and nutritive value, I am in awe of how healthy Robert's gut must be given all these yogurt cups he's using

[@konturgestalter]

amazing channel

[@levinebette15]

Your thought process amazes me! You built a chicken enclosure for my bathtub! Now I can see your brilliant brain.

[@hikingpete]

Has anybody told you that you sound like Red Green? It's not all the time, but some of your phrases almost perfectly channel him.

[@RFC-3514]

1:45 - And then you'd have to pull the inner mould from inside the globe, which means the inner mould would, itself, have to be hollow, which would make it less likely to hold its shape in the first place. Which I guess is why, even with metal moulds and injection moulding, plastic globes are often made in two parts (unless you happen to have a pneumatic blow moulding machine).

[@hanelyp1]

That globe would be made with blow molding. A preform is cast, heated, put in a globe mold, and inflated like a balloon.

[@InobuZ]

When it says 1 to 1 by volume you have to do it by volume.....Why? Sometimes the B side is not as dense as the A side. So when you are measuring the B side it will not weigh as much therefore you are adding more than needed. It a good chance that the viscosity is thicker from the 1 to 1 by weight. Learning a lot from you....good job

[@Aurelius_Khan]

You are pretty crafty for an old guy.😜

[@pashaveres4629]

Hey! I got the first like! Seems that if you did a lot of casting, no matter how plain and simple, that would automatically affect your sculpting. You'd reach some point of unconscious awareness, some critical mass. Haven't done this kind of work, but in photography or ceramics, I'd tell a student to do it a hundred times. They never do, but they do learn. Thank you for sharing your wisdom and experience. Look forward to Friday mornings. Aloha

[@wuerfel_schmied]

I love your scale ^^ I think I have a look for a thing like that.

[@RobertTolone]

Ohaus 750 triple beam balance scale. Easy to buy on the Internet.

[@wuerfel_schmied]

@@RobertTolone thats a nice scale, not as pricey as I thought. It's definetly on my list for my next workshop. I need more space to store all that stuff. But pre setting the scale to the weight I need and just watching the beam raising up will be a lot more convinient.

[@wishcloudstudios]

By the way, the Dollar tree has a nice assortment of small plastic cups for small molds. You just have to know where to look. Look in the party section as well as the paper goods section. There is everything from communion cup size, shot glasses and large condiment containers.

[@RobertTolone]

Good suggestion, I forget about the dollar stores. They are probably a gold mine of good, cheap tools and materials. I usually buy my cups at Smart and Final. I’m going to compare it to the dollar stores, see who wins.

[@danje748]

I have a nice idea for a project. I was wondering if you would be able to cast a working clamp, one of those you screw to make them tighter. My guess is you would have to make two molds one without the screw part and one complete and use that non stick thing. But no idea if it is at al possible. But sure as heck would like to see you try! =)

[@roger.agburn]

Lovely video. =) I wonder if the mold for the clear windshield and head light will last long, since the edged of the head light part look pretty sharp. But they can't be smothened I guess, because then the won't fit into the car nicely anymore.

[@theodorejackson7760]

When you're doing a 1 piece hand-cut silicon mold, have you tried the slightest hint of spray of, say, vegetable oil along the sliced rim as a lubricant so that your jagged silicone cuts might well find that ideally perfectly smooth interior casting boundary under their own elastic tension without having to be coaxed? Particularly important since the inside seam is rarely visible. I wouldn't expect with rubbery silicone that the interior edge would necessarily be as perfect as the coaxed outside. Have you ever tried vibrating the (lightly lubricated) mold electrically for a moment to maybe find those perfect boundaries automatically? If you remember that old football game toy in which the tiny figurine teams would all run around on the field randomly (dancing around trying to avoid electric shock presumably), hopefully advancing the ball down the field a little in the process, then that's the sort of vibrating surface I'm talking about.

[@RobertTolone]

I almost always get very clean parting lines on the castings with very little effort provided that the mold is properly cut.

[@MacheteBushcraftAustralia]

I'm with you Robert. I caught sight of your beam scale in the last clip and was impressed with how you crept up to the mark. I'm going to start hunting for a similar beam scale for myself. I can't bring myself to trust the digital scales. Care to share what model scale you have?

[@chartle1]

Do you ever vacuum epoxy? I know with urethane resins they have a shorter open time but I just poured some epoxy and usually there are lots of bubbles floating up. This time I had my vacuum setup ready so figured I'd give it a try. No bubbles are floating up at all.

[@Mephistoph612]

If you poured a mold into a cup and had the pour opening in the top of the cup instead of the bottom could you use the cup to hold the mold halves together rather than rubber bands when you cast the mold?

[@levinebette15]

New scale!

[@levinebette15]

Not a new scale? A clean scale!

[@Entropy72]

Who ever suspected that Bob Newhart new so much about mould making?

[@RobertTolone]

Love Bob Newhart!

[@lifeholdstrategic]

When pulling the items out of the pressure tank, is the air inside "toxic" with the lingering fumes from the resin? I'm in a small one car garage shop and slightly concerned with venting fumes into the confined space. I have a venting plan, but was curious. That window/headlight part is pretty small, but what about a large resin piece? Thank you, another awesome video.

[@chartle1]

The only resin I use thats stinky is PR or polystyrene resin and you should use a proper respirator. It smells like melting and burning a Styrofoam cooler. The epoxy used here has a slight glue smell. And the other urethane resins also have no real smell.

[@cheesefrog99]

Another great video with helpful tips. Do you know how to get the strong odor from clear polyester resin out of a silicone mold? 1 day later and the odor is srill strong and noxious. I wonder if i have to throw the molds away. I don't want to!

[@RobertTolone]

Polyester is really stinky; I confess I’m not a big fan of casting or laminating with it. I don’t know of any way to get the smell out of the molds. It’s very instructive that enough molecules of the resin migrates into the rubber to leave a powerful smell behind. It’s a big reason that molds wear out

[@davidhoogewijs1718]

if you put the bottles in warm water first it becomes much easier to mix and poor :-)

[@rickblackwell6435]

If you were missing the glass could you create it from the body?

[@TheWjrohret]

how much would you charge a client for a part similar to the car body?

[@katevandeweghel2691]

Thank you for making great videos friday after friday. Different fridays than before the lockdown but just as good 😄. Could you do a project on casting large size objects or go over the different challenges related to a different scale ? I heard you mentioning the need for ribs ... Also could you rotocast an object of about 1meter in a hand made rotocaster ?

[@RobertTolone]

I expect we will probably do bigger projects as the channel progresses. The trick to rotating large objects on a rotator is to balance the machine and the mold carefully. If it is well balanced you can spin a remarkably large object with very little effort. Also you can spin a large object slowly and effectively roto cast the resin.

[@nathancyoung]

I recently subscribed! Great Content! I'm looking high and low for the waxes you are referring to. I'm having a hard time finding "Sticky Wax". Is there another name for it? Or better yet, can you specify in a video sometime about the waxes, your wax carver, and some tips for us wanting to get away from the dreaded use of clay and hot glue?

[@RobertTolone]

Here is a link to a .pdf file of my materials and suppliers: www.dropbox.com/s/kz6mhmf7v5vpy7l/Material%20and%20Suppliers.pdf?dl=0

[@nathancyoung]

@@RobertTolone Thanks Bob!!! This is incredibly thoughtful and helpful!

[@th3engineer]

great video thanks for sharing. I have one question how much pressure do we need in the pressure pot for casting?

[@wemmy582]

Hardener = thixotropic liquid De-airing = De-gassing

[@ray24051]

Smooth-On makes a clear cast resin that has very low viscosity.

[@p11_studios]

Awesome video! How would you go about casting something as complex as say a Lego figurine?

[@RobertTolone]

I went and looked at a bunch of them after reading your question. The simplest way to cast them would be to mold and cast them in pieces and then assemble them.

[@michaelbaykara2322]

i was going to ask you if you could do a clear cast of a model clear part and voila! Thanks for the tutelage

[@brigittebonneau5015]

Hi, I have a question, and I have a hard time finding the answer, and you seem to be the expert. Can I use natural air dry clay bought at dollorama to make my model for making a silicone mold? It doesn't say on package if it contains sulfur... Thank you for your help!

[@davidjordonmiller9686]

Crafsman says to watch for the sulfur like you say, but it probably all depends on the ingredients of whatever specific clay and silicone rubber you’re using, how they might interact with each other. There’s also stuff to watch for reacting with tin or platinum cure silicone. I know I’m not the guy or an expert, but hopefully that helped a little.

[@markhills3922]

Yet another great informative video Bob. Thank you. Have you ever used any clear resin that doesn't need to visit the pressure pot? I'm trying to avoid having to make one. Cheers

[@RobertTolone]

I have heard that there are resins and rubbers that supposedly don’t need vacuum or pressure because the viscosity is so low that bubbles rise out quickly. But I have no personal experience with them. I would check with your material suppliers see what they have to offer.

[@AsainNerdfighter]

Wait why did u decide to destroy the plastic cups from the mold? I thought they were supposed to also be the casing for the rotocast.

[@RoamGaming]

because they didn't want to off the mold. I think he is just planning on using a couple of new ones when he rotocasts them.

[@chartle1]

How did you know this was my next project. 😆 Hence my questions on roto casting a clear globe shape. Oh and runs will not be an issue would make it look hand blown.

[@chartle1]

Cue sad clown music i wanted to see the snow globe today. ☹

[@yrunaked4]

very interesting to know that you dont endorse Alumilite because they certainly endorse you, judging by the youtube adds they put on your video, lol. great video, love your work and style

[@RobertTolone]

I have no objection to Alumilite or their products. In fact, I regret my reaction to their resin that I used in this video. I had envisioned it as a watery thin liquid, much more like urethane, and was surprised that it was as viscous as it was. There was nothing wrong with the resin - just with my expectation of it. The Alumilite people have been very nice to me and have offered me products for use on the channel. I have not accepted that offer because I have very little experience with their products as they are mostly sold in craft stores and I buy my molding and casting products from dealers in much larger quantities. I could only showcase their products in a “let’s-explore-this-product-together” type video. That’s not the kind of video I do. I don’t make ads or do product reviews for companies. Thanks so much for your comment!

[@leelemley3547]

Hi Robert, I tried to stick a small figurine made of oil based clay with hot glue in a cup, but when I poured the molding rubber the figurine came loose and ruined everything - any tips how to attach oil based clay (sulfur-free)?

[@RobertTolone]

For oil clay sculptures I always make sure there is an armature or base inside the sculpture at the attachment point so I have something to reliably glue to. Or a mechanical attachment, like the wire armature sticking out of the bottom of the sculpture going into holes in the mold case.

[@leelemley3547]

Thank you, that’s what I will do next time - making a sculpture is as much of an art as is molding and casting, which you have demonstrated many times over. Love all your videos.

[@rdoetjes]

I have a saying about epoxy resin: "It's never not a pain in the butt!"

[@RobertTolone]

Yeah, pretty much! 😄

[@ericlin9709]

Master, Did you finish the globe?

[@RobertTolone]

No, I haven't returned to that project yet because I have so many projects that viewers sent in waiting to be completed.

[@muddywater6856]

But guess what.....it's going to work 😀

[@wishcloudstudios]

Do you always degass your rubber before you pour it?

[@LEMEOIN27]

I remember him saying that he main reason he degasses his rubber is because he keeps it beyond its reccomended shelf life (buying in bulk to save $$$). So my guess is he only degasses when the rubber isn't "fresh".

[@chartle1]

Some its almost a requirement. Some are marketed as NV no vacuum. The thing about the age is for the resin.

[@vitorstreetboys]

#1 first comment was me :) im famous now

[@securityrobot]

And what did you say, how did you for fill your life’s ambition?

[@CireMystery]

1k views and only 129 likes? C'mon subscribers!

[@srinivasanr6723]

Type of resin , uses

[@levinebette15]

Oh, I would share but I’m in Twitter jail.

[@hamzabensouda9743]

Hello Robert. Thank you for your amazing videos. Have you read my email? Thank you

[@shaiyashock]

lol I lost the windows in my car.

[@curtishumphrey325]

Have you ever thought of doing Disney characters

[@RobertTolone]

Hi Curtis! I’m a character sculptor. My primary business for many years has been doing prototype sculpting for the entertainment industry. I’ve freelanced for Disney since the 1990s for consumer products and the Parks. I learned mold making so I could deliver resin castings and painted sculptures to my clients. The reason I don’t do Disney characters or other studio properties on my channel is because of the potential for copyright strikes. Thanks for asking.

[@SakakiDash]

Would not even attempt to mold the globe. Injection molding would make short work if it though

[@chartle1]

I'm assuming its blown like water, pop bottles and other bottles. Amazes me that a 2 liter bottle starts as a small test tube sized I think called a pre form .

[@RoamGaming]

vacuum forming i think would work as well.

[@chartle1]

@@RoamGaming maybe but vacuum forming can't get under the buck or form. Best it would be a half sphere.

[@michaeln5660]

I'm a high school science teacher and we still take the time to teach kids to use a triple-beam balance!

[@RobertTolone]

Good! It’s an excellent skill. But I’ll bet a lot of your kids wonder why they should bother in this age of digital scales!