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Hi George, No offense taken and I appreciate your comments. Once I get the gauge machined up and I know exactly how much I have to play with, I'll try honing them clean. Pat

Been a while since updates, so here's where I am ... I followed Bruce's suggestion and found a local supplier (Edcon steel in blacktown) that would sell me the small quantity of 4140 I was after for the cylinders, that even had no issue with cutting it down into the blanks I asked for, great...

Hi Bruce, Thanks for the suggestions, I'll get in touch with interlloy and see if they will sell me a small quantity. I must admit I have no experience machining this type of steel, the closest thing was machining my ball screws for my cnc conversion. Pat

Thanks Kevin, Will hopefully be tackling the underside of the block over the next week or so. Although a BAS has got me a little side tracked the last couple of days, but it'll be a few weeks before the test tubes arrive :) Pat

Time to buy some material ... I'm looking at the cylinder sleeves and crankshaft and got some quotes today for some 4130 material - 31.8mm Dia x 3.96mm wt 4130 tube for the sleeves - 38.1mm Dia 4130 Round Bar A little pricey, though I'm more concerned about achieving a good finish, and it's...

Hi Tony, I have the same plans that you have in your picture there. I had a friend in Germany do the translations for me to purchase them from VTH on my behalf. To build my engine, I've modelled it (about 75% complete) in solid works and generated dxf files for the various cnc operations.

Thanks for the info on the test tubes Kevin, I'm going to have to dig out the plans and revist this. Regards, Pat

Thats a gorgeous looking engine, I really like the fly wheel design. I emailed Jan I while back and got the plans off him, and is on my list of things to do. I struggled for a while trying to get hold of the particular sized test tubes here in australia, so parked it for a while. Pat

Your engine is looking great! I still can't get my head around as to how fast your build is progressing! Looking forward to seeing the heads fitted out with the rockers. Pat

Hi Bruce, And thanks for the encouragement. I converted my X3 about 4 years back now and took very few photos. I bought the standard X3 from Hare and Forbes, rolled ball screws from "homeshopcnc", angular bearings from vxb, and 425 oz nema 23 steppers from Keling. The bearing blocks and motor...

Thanks Steve, you might be picking up on my "vroom vroom ..." noises I make on the way to work :) So far everything has gone well, just finding the time to under take the big tasks like the block has been my issue. Progress should pick up over the christmas break ... 5 weeks off. Pat

Thanks Ron, so far things have mostly gone to plan. Pat

Hey longrat, The design is based on the Schilling's engine, my deviations are ... - Revised lower crankcase half in 2 parts, so there is a girdle integrating the main cap's and upper sump half, and a lower sump which actually holds the oil. - Cross plane single piece crank instead of the built...

Glad you weren't dissappointed with, way better value than the plans available for the Schillings engines IMHO. Pat

bit up cleanup, and a quick wash with some dish detergent, and I'm a happy chappy, it sort of looks like the model :) Next will be the cleanup of the underside and pocketing for the crank throws. Enjoy ... Pat

The bit I was dreading, boring the cylinder jackets. I made up a simple plug gauge to the finished bore diameter of 28.00mm, I stepped opposite ends for a short length at 27.90mm and 27.50mm. I fed the boring bar at 0.5mm increments till I got close to the 27.5, then started stepping outward at...

Now for milling of the water jackets. The recesses are 25mm deep in total, with an 8mm dia bottom fillet. I choose to complete the jackets in 2 stages, the first, routing out the shape with a 6mm endmill to a depth of 21mm leaving me the 4mm to machine the fillet in with a ball nose. It didn't...

Hi Guys, It's been a while since I've had any progress to post, but managed a few (quite a few) hours in the garage this week, and took the plunge to start lightening up the chunk of 6061 that's to become the cranks case. I had already roughed out the basic V shape and left 0.5mm allowance on...

Spent some time today lightening up the piston blanks, 4 out of the 8 are done and with it getting late and no mishaps I decided to quit while I was still smiling. Setup was a transfer to the collet chuck on the lathe to drill a pilot hole for the start of the end mill, and provide a centre...