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Wow, those parts look extremely clean and precise machined... I will follow your work :) Stefan

Here we go...the reversal control: Milling the bearing blocks from hot rolled mild steel: Milling the contour and roughing the holes: Aligning both bearing blocks on the conventional milling machine to bore them out: Boring job... ::) Drilling and boring a piece of flat, cold rolled...

Uh Bob, thats a simple aproach..I will do that :) I agree with you, beeing new to cnc its for me also very hard to chose the right fixing of the workpiece. Sadly, I don't have pictures of the making of the conrods..but I will take pictures when machining the other parts :) Stefan

Of course :) They are milled from a solid piece of cast iron, those two conrods took about 8-10 hours to make, even with Cnc.. Stefan

Thank you, guys :) The overall style of the machine (using steel and cast iron in favour, the profiling of the con rod) is copied from Jimmybondies four cylinder steam engine (also to be found here on hmem..I know him relatively good (drank beer together :D ), and he is a real master in what he...

Hi, its me again... :) Started to build a small two cylinder engine after a plan from a german steam book: http://www.amazon.de/dp/3788306564/?tag=skimlinks_replacement-20 The plans call mainly for brass as material, but i am going for steel and cast iron, using brass and bronce only where...

Even with CNC, I prefer to do manual marking first..helps to get a feel for the part, and also minimizes the chance of putting the part in a wrong way into the vice... Stefan

Strange luck, yesterday I bought a hydrogen-generator used for soldering, heating, etc.. Its a machine built back 1980 in Germany made by the company Mig-O-Mat: Very massive unit, weights around 40kg and needs a power supply of 230V by a max. power consumtion of 1,8kVA. Opened case, there is...

Thanks a lot :) Yeah, but this thing can be done in one evening :) The motor? It is a store bought motor, generally used in rc cars, cordless powertools, hairdryers, etc.. greetings Stefan

Hi Folks, once again, all my current projects came to a stop, because I wanted to build a tool (to build other tools, that will build other tools, ...you know the drill :) ) This time its Jerry Howells Highspeed Spindle...

Hi folks, I was looking after a little, not so common, steam engine, I could build...then I found Brians Thread about a Hit and Miss steam engine, inclucing the great plans, I liked the overall look of it, so I decided to build it. But for fun (we will see...I hate myself right now :D), I will...

Ahoi, Outer diameter is 0.7mm...i think, inside is about 0.35mm...can't measure it :) I have a flow valve for the air...by adjusting the amount of air, that goes trough the nozzle, i can regulate the amount of coolant fluid, that is sucked in... Jim: No fog so far, its almost like a...

Hi, The last few days I built a coolant mister for my cnc milling machine...there were three versions: Here it is: This is the nozzle: The Air goes around the central needle, which holds the coolant fluid. The manifold: the lower connection is for the cutting fluid, the compressed air...

Update: Got the "real" spindle head mounted: It can even be tilted: [/img] Its a modified spindle head of an Sieg X2, with an ER32 spindle and two stage belt drive (no gears at all :) ). At 50Hz on the Motor I can get 400 in low and 2000 in high range. A VFD will also be fitted to the...

No, the stepper and the belt drive in combination have enough countermoment... Go for it :) greetings Stefan

The knee will move. Correct. Btw. :the spindle is a new 25x5mm made by Bosch Rexroth (a friend sold it to me for almost nothing..) I am using a stepper interface called "TripleBeast" made by Benezan Electronics (small german Manufacturer)...

Hello together, In line with building my 3 cylinder rotary engine, i decided, that i need a cnc milling machine...to much similar parts to do them manualy (At least for me). First plan was to build a complete milling machine from scratch...

Hi, Yeah Scott, the Aciera F1 is also a guide for me in designing this small milling machine :) Frank: Thank you for your detailed answer :) The complete Z/X axis with the table has arround 45kg, the steppers i plan to use have a maximum current of 4A, maximum torque of 1,5Nm, and at 1000 rpm...

Hi Folks, At the moment I dont have too much time to continue working on my 3 Zylinder Radial Engine, but I had time to do a bit of development work leading to a small cnc milling machine...I dont know if it will be built some day, but who knows... It will look like the famous (at least, they...

Back after a long time :) On the last few weekends i had opportunity to finish a few important parts oft the engine: Crankshaft: Roughed out the bearing-side: Material is 42CrMo4, a really tough steel, without carbide tooling, maching wouldnt have finished until now ;D A few chips...