Bro no cap, you're a lvl 10 warlock.

Can these be made with a different top playe for other style throttle bodies. Will you sell these, just starting a project now with thise engine..

Belo trabalho mais videos assim de montagem de modelos de espuma complexos

nice work!

Hi Kelly - Off topic - do you know why the forum is down? I hope it's temporary :)

What is the purpose of the coating dip?

wow superb result! i'd love to see how you make your lovely foam patterns! I;d love to cast a large flat heatsink. thanks and subcribed

Hello, do you have time to do a couple of castings for me?

Hello Mr Kelly. I have been seeing yours videos and they are very interesting. However, yours patterns are made by CNC or for expansion process too?

Looks good, nice one. thanks.

When you have wet slip in hollows, after mopping out with a brush, could you use a hire drier on low heat to finish drying the part? This is very interesting and thank you.

Thank You for this very interesting info. I would like to make a small 4 stroke engine, to start with! If I am successful, I have a V-Twin design, that needs to be made. I will keep looking at your vids for more info, Thankyou.

That's brilliant.

This is very interesting! How does the blue pattern disappear when you pour the alloy in? I do like the motorcycle cylinder, that will polish up really well. Thanks for your info.

I understand foundry work. So WTF is the point of this incredibly uninformative piece of crap? And from Kelly Coffield, an awfully intelligent guy who has done lots of interesting things in his videos, yet!

I spent a fortune on Petrobond to turn out mediocre castings. You make magic with an 8 dollar bag of sand from the Home Depot. Respect.

Great job!! Amazing gear!!

This is so amazing. I have soooo many questions but the biggest one is why do you not have a bunch of black smoke from the foam burning off? Can you do this same thing with aluminum bronze?

very nice castings. best foam oi have seen to date. super clean as well

Absolutely beautiful.

Awesome stuff

This is amazing to see your work man. All completed at home lol. I just randomly ran across your videos and will look forward to more. Keep up the great work sir 👍

inspirational, thanks.

Hey Kelly! I'm a young engineer, and have really enjoyed watching your videos as inspiration/education for my own projects. I haven't found it yet (maybe I need to watch more) but I'm wondering what slurry you use for dipping?

Super Impressive 😊

Verrry tasty stuff.. MMMM GOOD ,! Unusual stuff is almost perfect... and LOOKS VERY PROFESSIONAL.. TESTS AND REVEW..?

Genius

I would love to know how much money it costs for the customer . You do amazing work . I am thinking 10k to 15k . You can't go buy that stuff off the shelf . I would think any part would be times 10x to 15x percent of the cost of something close to production parts price .

Absolutely amazing. Although cooling goes down if your fins are too close together. Unless you use active forced air cooling. You can download the charts on it. It's the same way with heat sinks. They have to be a certain distance apart if you're not using a pressure fan. You need good air pressure if you put your fins too close together.

High precision castings they coat a lost wax pattern in plaster and sand then melt the wax. Every thing is a tradeoff but a finished part that doesnt need more done to it after is probably worth the extra steps before hand.

Thanks for putting up this one, very interesting. This is a little information that I hope you will find helpful. In order for cooling fins to operate effectively they need to have a taper from the base to the tip and the shape of the tip and base (and the angle of taper to a lesser extent) are quite critical. There are a number of excellent research papers available online which describe the dynamics of heat risers / dams in cooling fins. In short - heat will not travel up the fin and dissipate at the tip in a flow (not dissimilar to a stream flowing ) and transfer to the air stream without the appropriate taper. The second issue is that of harmonic vibration. Everything vibrates and more especially in an internal combustion engine in operation there is considerable vibration. Parallel fins without taper will break off sooner or later. I found this out the hard way and before I became aware of the complexity of cooling fins. Keep at it, I've subscribed to your channel and look forward to more of your foam casting videos.

beau ti full !! What is that pink stuff ya're using for the "lost foam" ?

That is amazing quality you managed to achieve.

Fantastic vid!

Just found your channel and subscribed. Very nice work

I am curious how you’re going to drive the oil pump having moved the distributor.

Beautiful work!!!

Look at the neje max 4 laser engraver they have those drag knifes on sale now at neje shop

Awesome work!

Wow! Super nice work! I can totally appreciate the amount of time and effort that went into all this. Really incredible.

Very cool Kelly!!! I’m a big FE fan and my second fav is the 335 stuff. It’s neat to see people (like your self) are keeping it alive.

that looks fantastic... wow. Got me thinking about my Fusion360 and my Avid CNC and home depot foam board.... lol

Built a Dave Gingery charcoal foundry years ago, made some cool stuff with it, but your setup is just fantastic!

Are you accepting new work? How would one get in contact with you?

Would you be willing to share any details on the construction of the final aluminum drag knife. How is the 1/4" shaft connected to the bearings.

عمل رائع واصل.شكرا جزيلا.

Once again, you have opened my eyes as to what is possible in one man's garage. Thank you for your video.

Over the years I've made a lot of gaskets using a LASER engraver setup. And even some with what looked burnt on the edges after being cut out worked perfectly. Another idea is to either take the old gasket, or the part that it is going to fit one, if you can, and use a scanner to copy the gasket surface needing a gasket and transfer that to the LASER engraver to cut a new gasket out. Some times you have to get creative... Thumbs Up!

I need this guy as a teacher

I fancy myself as a pretty clever fellow with a few patents to my name, able with respect to most trades but you, sir, are incredible. I pale in comparison.