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Thanks for the chart. I assume that the nominal size shown in the second column is the size you would shoot for if turning a piece down to thread with a die. Column D shows a max and min size. With taps there are drill sizes listed to produce percentages of thread depths but I have never seen...

So If I want to make a 1/4-24 thread on a part in the lathe I know that I turn it down to 1/4" and stick the 1/4-24 die in the tailstock holder. But what size do I turn for a 2-56, 4-40 or 10-32 thread? I have all the tap drill sizes for taps on my handy wall chart and the densely packed info...

I am curious how you are going to take the square blocks down to round cylinders except for the flat on one side (for the steam valve housing). In the past I have soldered on (or used loctite) a flat piece after gouging out one side of the flat to match the curve of the cylinder.

Yes it was sad to loose Bruce Satra. His castings were works of art. I have the P&W engine as a single cylinder kit. Just one head and a fabricated block. Also have the 1830 plans. And Bruce Satras 0-440 plans, a four cylinder boxer engine. Old school drawings with hand written machining notes.

I would love to see a diagram or photo of this gadget. An adjustable line boring bar would be very convenient.

For a multi cylinder engine the right way is to line bore the engine block. The video below shows the idea. He is holding the bore in a three jaw chuck. It should be between centres. Packing the block to the correct height would be challenging. For a single cylinder engine the drill and ream...

If you wanted anything particular in the old scrap yard in our town the owner would hand you a hack saw and tell you to bring it to the scales. No more of course. The yard where I live now will still let you in but you have to sign a waiver and wear the PPE they give you. They have a great...

It’s all my fault. I put away the snow shovels. Had to dig them out again. Man that was wet heavy snow. Many very unhappy birds. No gardening this week.

Keith Appelton has a video on machining cast flywheels.

Oops got the wrong one on that web site. The ZX45 looks good.

Looks like a normal round column mill drill but you say it has a dovetail on the column? Interesting. I’m wondering if there is any way to add some kind of system to locate the head on mine as it moves vertically. Maybe a pair of heavy tubes on each side of the column linked to the head with...

I am currently lusting after this mill: https://www.busybeetools.com/products/milling-machine-with-digital-readout-cx601.html Its 566 lbs (255 kg) and has all the bells and whistles. Slightly wider table than my current mill drill but would fit the location I have quite nicely.

Why the carbon cover? Does stainless react with aluminum? Would the carbon affect temp readings?

My mill drill drives me to tears since you have to unbolt the head, move it where you want and rebolt it. As soon as you touch those bolts all semblance of vertical precision is lost. Milling, drilling, reaming and threading in sequence all require different heights so it is frustrating to have...

Maybe toothpaste manufacturers should put grit sizes on the tube so you could start with 500 grit Crest, move up to 1000 grit Colgate and finish with 2000 grit Sensodyne.

My lathe currently has a 1 hp motor. The three phase motor from Amazon is 1.5 hp and the vfd is 2.2 kw, about 3 hp rating. It all looks good on paper. Start and stop frequency is interesting. I suppose like most home lathes this one gets very light duty. You face the part, turn it to size...

I found a Yaskawa V1000 used on Ebay for a good price. But as Ignator said you have to watch the input voltage. On closer examination this one turned out to be 300-480 v input. There is a dizzying variety of cheap VFDs on Ebay and Amazon. All of them could ultimately be made by Huang for all we...

As far as I can see from the ad the vfd is model AT1-2200X and the manufacturer part no/reference is Vikyehonmx4z17g. That is all I can get from the ad. I will apply to the family financial control officer and send in the order. ND is 2 hours south of us. There is a receiving company just...

Ignator that package deal looks great but in US dollars so a big hit on currency exchange as well as very expensive shipping. The nice thing about Amazon is the free shipping. I’m tempted to go with that motor and VFD deal. I can buy local for three times that much. Probably smart to do that for...

I am looking at this VFD because I like the fact the control board snaps out and can be remotely mounted. It also has a pot built in. https://www.amazon.ca/dp/B07T55DW7Z/ref=cm_sw_r_em_taa_htTPEb3ZCXMQA This motor is also attractive for price...