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I am not sure what you mean? My/Jason's method retains bosses on all fronts. Rich

I did mine like Jasonb. Was a bit of a flashy casting but did the job when cleaned up. Ruch

I really cannot answer that question as the plans I am working from have the cylinders inline with the crankshaft centre line. Maybe it is a derivative as many variants were produced. Perhaps Ken or others could advise? Cheers Rich

Another point. To make my casting easier to mould I cast the part without the fancy apertures, just the beading profiles left on and cut them after using a piercing saw. Also, I made the feet as a long rectangle to span across the legs which acts as a good feeder/runner. Maybe I am preaching to...

Lovely work! I built mine at 1/8th scale and used 3D printing for the leg patterns and a few other parts too. The cylinder however was easier make from wood turned on the lathe and bosses glued on. Without a doubt it is a lovely engine to build and run. Very satisfying.

This method is the only way to produce this part as it only measures 62mm x 37mm x 26mm and the fins are only 0.8mm thick and parallel. I wasn't even confident it would actually work as the refractory plaster is still quite fragile after burn out. Jeff produces some fine castings!

Hi, I am using an old version of SolidWorks. Ver 2017. Rich

Hi olli Thanks for your comment. Maybe I got lucky? There are two more to make and it's a long process doing lost PLA castings. I have yet to try the lost resin route which would give a better finish hopefully. Rich

Only just picked up on this thread. Unbelievable craftsmanship! Hope your health improves quickly. Rich

I should have been working on the crankshaft but I had to do some casting to do for my partners grandson so I decided to try my intended method for producing the finned cylinder/ heads. These are quite elaborate and have a cavity that links across to the side valves and spark plug. I am hoping...

I just noticed that zooming well into the images shows weird textures and are obviously an artifact of my hdr setting of the camera. I will turn this setting off and try again :-)

Having been distracted by other foundry projects and visiting relatives etc I found a little time to go back to the Anzani. I have decided to try and cast the con-rods in Silicon Bronze. My thinking is this will give me enough strength combined with bearing properties to remove the need for...

Thank you for that information.

Thanks for that. I will have to purchase a new one. A quick question about the silicon bronze. I found the ferrosilicon seemed to take an age to be absorbed, in fact I thought the gooey dross was possibly mainly ferrosilicon. Did you experience that? The end result was still a bronze in colour...

Thanks :)

Hi Pat, That's not the impingement area but may be an artifact from the electric furnace but I am sure it's not from the diesel furnace as I have three other crucibles and they show no distress. As you can see on my last photo the flame skirts around and down below the crucible. Using a bigger...

I would like to say to treat this with caution. It may well work with models printed in vase mode/spiralise as the walls are only 0.4mm thick typically. I tried a model with 10% infill and 0.8mm wall thickness with a styrofoam sprue and the melt stopped dead at the model and that was with...

Fascinating stuff! Thank you for your input. However, after chipping away the thick skull on the lip of the crucible you can see that massive honeycomb porosity extends all the way to the outer skin of the crucible and extends a good way down. The initial lip was like pumice and easy to remove...

I have taken a pic showing how the burner is deployed. I put a piece of white pipe into the entry tube to show direction. This is to the side and only skims the base of the crucible.

I have cast Brass many many times and to be honest it's my favourite metal to cast. Also I had no problems doing homebrew tin bronze and leaded bronze, aluminium bronze however was a disaster. Like you, I avoid borax as it ruined my last crucible and I have not tried glass either. I upgraded the...