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I used slide rules all through university in the late '60s. I had a bad habit of losing them periodically, which became expensive. I created a geocache years later that required knowledge of a slide rule and logarithms to calculate the GPS coords: https://www.geocaching.com/geocache/GCRFRB

I have a build thread on this engine. The most challenging parts are the conrods and boring the cylinders, but it is a good runner. 80 lbs might be slightly low. Castings are good quality.

I attended on Saturday and enjoyed it. I flew to Indianapolis Friday morning and spent a couple of hours at the Indiana State Museum. Lots of info on people born there and things made. Of course I knew about South Bend tools, but the gamut of Norden Bombsights to TokHeim gas pumps was...

Given the limited flight options ATL-IND I changed my plans and will fly to Indianapolis on Friday morning and visit the city before driving to Ft. Wayne in the afternoon. Then I'll have all day Saturday to visit the show and the museums. Staying at an airport hotel Saturday night before...

I have booked flights and hotel for a 1-day visit. but now I think I need to stay over another night.

I had my upper head rebuilt by H&W a while back. But I took it to them for the rebuild. My problem was an inability to shift into low-speed range. As part of the rebuild they packed it with grease so no need to oil the upper section.

I powder-coated my last two engines. Gun and powder from Eastwood, I bought a used double oven cheaply from a couple that were remodeling their house. It's 220V, so I needed to put a plug on the cord so I could plug it into a 220V outlet in my shop. Powder doesn't like moisture so rather...

Despite a weekend trip to NYC the weekend after and leaving for a cruise at the end of the month, I have booked a trip for this weekend as well. Staying Saturday night at the Hyatt Place in Ft. Wayne where I stayed one night a couple of years ago. Too late for minor league baseball in Ft...

Back in the far past I had a "carbide cannon" toy that would make a loud bang when the gas produced by some wet powder was ignited by a spark. In the army when on the rifle team, we used carbide lamps to darken our sights with the smoke.

A beauty and a great runner

Parts that are profiled and do not require milling on both sides of the stock can be separated by the width of the profiling tool and be retained by stock at the bottom, which is then milled off in a separate op. Alternatively the stock is glued to a fixture block and separated later. Or if...

I have a '62 BP and keep the belt on the middle of the pulley. I've never needed to move it in 16 years. It's fine to overspeed these motors for short periods of time. For slower speeds needing torque I use back gear and reverse. I removed the power switch and control the...

The jig for sawing the round bar lengthwise is something worth remembering. 👍

Interesting variation on the reversing shaft. Well done.

I have a 4" Kurt vise (actually 2) that I'll sell for $200 each plus shipping. Used and could used a cleanup, but no holes drilled into them. Comes with regular steel hard jaws and a pair of aluminum soft jaws.

Usually those once-in-a-lifetime events happen more than once, so it's a good thing to get rid of those tree limbs now.

Even sounds like mine. :D

Now that all the motion parts are complete you can check the timing and adjust the valve movement. Looks like the hole in the side of the base to anchor the bottom of the reversing mechanism is still TBD.

FWIW, I used Loctite for the rods while the rockers were aligned on a surface plate. You could pin them afterwards, but really not needed.

If the piece was completely into the collet the "belt" would help resist bending.