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Hi, After reading a bit about induction heaters i`ve start thinking about using one to heat treat small parts or tools. http://www.rmcybernetics.com/projects/DIY_Devices/diy-induction-heater.htm Any of you did anything like it to heat treat or know how safe it is? I`ve also saw the same used to...

Hi, I`ve spend a couple of hours looking for a post containing some Alibre modeling tutorials. I remember reading the post a while back but now i`m unable to find it! I`m a noob at cad software and i would like to give it another try. Any of you remember reading that post? I will get peace of...

Hi, I`ve spent the last 15 days at home because of high blood pressure and i wasn`t able to use any machine on the workshop during that time :( The pressure is affecting my eyes and i can`t see properly enough to comfortably use my tools. I`m walking in circles... Any of you have any suggestion...

Hi gents, A few months ago i finished my boxer air engine. It run well but i`m a bit scared of starting it again because of the big air screw it needs to run smoothly. The current prop is a 20x9 and i found quite dangerous to run the engine on my crawled home shop. I was thinking of turning a...

As of now, i spent 5 days and 4 minutes of my life on this forum :) Time well spend. Norberto

Hi, Any of you know which is the compound on a green wheel? I bought one yesterday and when grinding a carbide tool, it start disintegrating as with normal wheels. I know normal wheels are made of aluminum oxide, which composite is used for good green wheels? I plan to ask for a wheel by...

Hi, In a few weeks i will have to travel to the states because of work, and after checking my travel budget y realized that ebay has cheaper tools than what i can find in Argentina :o I`m saving some budget, so i`m planning to buy all the tooling i can afford a few days before traveling :) The...

Hi I broke my second set of rings while running the engine and i have no clue why. At first i thought it was because of the little to almost no clearance on the gap, but my second set had a 0.10mm clearance which i think is all right. The rings are 0.75mm tick, the bore of the engine is 25.8mm...

Hi Any of you had any experience with DRO-350? (http://www.shumatech.com/web/products/dro-350) Is there anything i should order besides the full kit? I`m thinking of placing an order....the price is tempting. Thanks, Norberto

Hi folks. I where looking at cfellows carburetor drawings and i think i`m going to use the design for my engine. (thanks for the plans!) The doubt i have is how much should i enlarge it... The plans call for a throttle body of 1/8, and it won`t be enough for my application. For a 14cc 2T boxer...

weird car... i want to build one! http://www.ktuu.com/news/ktuu-radio-flyer-car-092910,0,1784245.story

Hi I`m about to make a few gaskets for my engine and i`m in doubt about what to use... I know there is a special paper for it (melanite in spanish, no idea about the name in english!) but i`m having big troubles to find a supplier for it. Is it ok to use any thick paper? I need to build the head...

Hi folks I`ve been building this engine the last 3 months, before knowing HMEM wisdom (YOUR wisdom!) was at the reach of my hands. The engine is my own design, i have a few notes and draws of it with a few bugs discovered during construction (i hate that!) but, after all, it is going fine...

Hi all I have a little doubt about how to shape a cylinder`s head combustion chamber. I`m building a 2 strokes glow opposite twin engine and i just finished the heads. I`ve left a few mm oversize to shape the chamber and i would like to know how and why ;) I will post a few pictures of it as...

Hi all Can you recommend me some CAD software for MAC? Better if it`s free :) So far, all i could find was architecture based (archicad and a few others). I`m thinking on purchasing Autocad, but it`s a bit expensive for my south american budget! Regards, Norberto

Hi all I just discovered this site after looking for machining tips on model engines. I`m completely new to machining, i bought a Chinese lathe 2 years ago knowing NOTHING about machining. I`ve just know i needed it to build some bells for a few brushless motors a was building. After a few...