Recent content by craynerd

Hi Chuck Excellent idea and this has been needed for some time with an Arduino. I recently did something similar to make a small dividing head for my horizontal milling machine: http://www.raynerd.co.uk/?p=1578 Good luck with the build and I look forward to further updates! PM sent to you as...

Well no luck with an hour or so on it last night. It coughed a few times but that is it. I put an O-ring on the piston and I have to admit, it made a difference. I cut the groove a little deeper than I calculated as it was just binding a bit too much. When I put the engine together, I put...

Yea, I need some confidence. Hopefully I`ll find out this evening! I am right in thinking that I don`t need a exhaust pipe?

I believe I don`t need a one way ball valve on the fuel inlet one the valve block as the valve would shut if there was a blow back with this design. However, when googling Webster Engines, I found a post on HMEM where you fellows were trying to help someone get their Webster to run and you...

Thank you chaps. Chuck - it was actually when googling "carbs" a few months ago that I came first across your posts regarding simplified vapour carbs - so you brought me down this line in the first place! So thanks :D Can I ask, what would be a good gasket material for between the valve block...

Thanks for the interest Richard, here is a follow up from my last post... Following on from the last pictures ... I turned the OD of fuel tank / vapour carb down to make a nice looking brass cup :D The top air intake is two piece. An M10 tapped insert soldered into place to allow filling of...

Thanks for the replies chaps. Yes, I am fairly sure the moment of truth with actually end up being a month of rebuilding parts followed by another month of fine tuning!! I`m well under way with Jan Ridders Universal Carb so I shall be posted an update shortly. Chris

I`ve got a little further with the engine, in fact I have made the magnet holder which connects to the crank. I also ordered some 3mm magnets yesterday which arrived today so I put it all together for a quick test. The video isn`t great, but I`m pleased that it is sparking!! The sensor is just...

I moved onto the valve block.I really struggled to come to a decision on how to machine this. As far as I could see, the important factors were that the 3 blocks had to have a perfectly flat surfaces to mate well (I expect gaskets will be used still) and that one of the long sides will be...

Here is the con rod and piston. So it is looking quite good now and turns nicely with a push on the flywheel yet has a great piston seal. I thought I`d try something different to make my cam. My idea was that if I cut the OD to that of the "lug" of the cam and then placed the blank on my...

For cutting the gear I made this gear cutter form tool: Yep, cheers for the encouragement MadJack I need it after the last two days attempts. I`m pulling my hair out here!! I heat treated the button cutters and all looked well. I hacked off a large piece of silver steel for the cutter itself...

I managed to make my boring bar from a 0.625" silver steel bar and small piece of HSS. I also found the wood I needed to mount the cylinder (I lied, I didn`t find it, I purchased 8 foot for only 12" - meh, it`ll come in hand!!) Here is the wooden block: I actually used this cutter for...

Well it is never as interesting when a post is made in bulk like this but I wanted to post my Webster Engine progress on HMEM. I think some of you may have been following this on madmodder. I decided on the Webster as a simple build (I use the word simple loosely) I started to get materials...

I am also looking for the NE15 plans by Nemett (Malcolm Stride). I believe they are in back issues of Model Engineer. Since Malcolm died, I believe the plans are no longer available. Chris

Removed the bottom cover and re-balanced the system. I think I did this correctly yesterday dispite my concerns and so things haven`t changed at all. http://www.youtube.com/watch?v=rmojALAmhDo Now, call it impatience, I call it experimenting but I sealed the bottom plate on again and with the...