Metalurgia, forja y fundicion

Last reply by rambletree on Sun, 11 Jul 2021 14:36:16 +0000

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Last reply by Djjinja on Sun, 11 Jul 2021 14:04:53 +0000

Last reply by Insane on Sun, 11 Jul 2021 13:29:27 +0000

Just thought I would post a link to this short video of my Farm Boy I have been building it over the last year of and on and ran it for the first time the other day. I should say I have little experience of internal combustion, all my projects so far have been external combustion.

I would welcome comments and suggestions from all you knowledgable people. It is suggested in the building notes that acetone is a good fuel for this engine. This is what I...

Farm Boy running

Last reply by rambletree on Sun, 11 Jul 2021 11:48:09 +0000

Last reply by demonskull on Sun, 11 Jul 2021 10:50:02 +0000

Well I'm slowly finding time to make some model engine ignitions and for my race car. I am developing several different types of ignitions I am hoping to sell here, my web page, and on other sites. Once I have the designs ironed out I'll get a vendor membership for here and sell them. But in the mean time I would like some feedback on the designs. Can't promise to incorporate them but I'll try. So follow along and see what happens, R&D research and destruction.

I'll be offering the...

Model Engine Ignitions

Last reply by edelweiss on Sun, 11 Jul 2021 06:33:37 +0000

Last reply by AndiTheBarvarian on Sun, 11 Jul 2021 05:20:17 +0000

so Ive been playing with Suspendaslurry for a while. Here is a bit of a photo dump of stuff. Dollar store funnels work great for making pour chutes. if you are making big statues, pour a hollow shell of paraffin and your slurry wont crack. vent between wax layers to minimize shrinkage. the Walt and Idols are about 5-6 lbs. Skulls are easy money. If you have criticisms, be constructive. These methods work for me. Im not a technical caster by zero means. Ive always worked on the fringe.

Last reply by snubnoze on Sun, 11 Jul 2021 04:14:37 +0000

Last reply by Djjinja on Sun, 11 Jul 2021 02:36:31 +0000

Any one that has built JE Howells twin V.
Em able to get ea cly fire on its own. Need some help how to time it. As cly one is on its power down stroke what should be taking place on cly 2? Is its the job of the fly wheel to maintain tell next power stroke of cly 2?
Harvey

Knowing how John made such a large impression on so many here and elsewhere in our hobby, I felt it necessary to post this here since I did not find it mentioned anywhere in this forum.

Death. | Model Engineer

RIP Bogs, you are, and will continue to be sorely missed. You left behind a great legacy for so many.

Hello,

I recently found this forum and I have enjoyed reading it and learning new stuff about metal casting.
I have been metal casting for 2 years now. I have one main project that got me into metal casting: making a powerful cylinder for my race motorbike. I have cast many other engine parts too.

This is my second successful two stroke cylinder pour. I have cast them in iron which I think is rather uncommon for a hobbyist to do. I know many guys who have cast a cylinder in aluminium,...

Casting a two stroke engine cylinder