Recent content by Train_Fan

I just sourced a step pulley and a 1/8HP motor (Total Cost: $22 for the pulley, motor was free) for the lathe. The pulley was installed and the motor tested, all works so now to focus on the tailstock and toolrest, then to work on the motor mount and controls!

Well, it runs: I set up what I had in a removable manner to see if what I had was feasible. Here's the headstock, before some cleanup work: And here is how the carriage and tailstock are set into the bed. For those who perceive the base to be not perpendicular to the bed, its an optical...

Alrighty. I assembled what I had and gave it a whirl to see what is of concern, and so far its holding a .015 tolerance with no noticeable vibration. Let me make this ring at least: I'll see if it continues to be satisfactory, then depending on price either buy shafting or go down...

So I am making myself a wooden wood lathe as seen here: http://www.homemodelenginemachinist.com/f31/making-myself-handy-tool-lathe-21664/ And I have a question regarding my material choice for the driveshaft that will run the chuck. Reposted from the thread: Thanks for any input!

Well so far, I'm at a crossroads. For bearings I am using some random ones that were lying around and just happened to fit a rod I had. This is my headstock shaft as it sits: The pulley is mounted onto a sleeve with a setscrew. That assembly is situated on a section of all-thread with some...

I have been jonesing for a lathe for my wood shop for a long time. Having come across some spare pulleys in my journeys and finding that one fits on my bench grinder arbor, I decided I will make a lathe that for now will run off the grinder (Till I get a dedicated motor). I started construction...

Gee, what could go wrong? :D tornitore45, I'd lean to agree with that.

You are looking for Boyle's Law, or P1V1=P2V2. (P= Pressure, V=Volume, 1 is pre expansion and 2 is post expansion). AFAIK this equation may need SI units and is for ideal gasses with no other variables so just be aware of that.

https://www.youtube.com/user/KEF791?feature=watch A man and his job shop make for some interesting footage! :D

Finally got a video of it running, albeit poorly! https://www.youtube.com/watch?feature=player_detailpage&v=-qGCyRqO008

Alright. Its kind of hard to machine wood to these tolerances without a lathe, and well, wood swelling would make that very hard to achieve. The pistons themselves are probably going to be 1/16th undersize and use 2-3 O-rings or similar to both seal and center the piston in the bore. As...

Alright, thanks. So, in the consensus so far is that this type valve would be best, if not at least functional?

Ah, thundermugs. Did you have it upside down in that vid to launch it up in the air?

Haha, when woods all you've got its a must. :D Hmm, So like those wheels on pinewood derby cars would suffice I suppose. No wood lathe so. :rolleyes: I'll have to see how rubber wears against wood. Maple is whats intended for most of this, with cherry bearing surfaces as I have plenty of that...

Good points on the pressures and wear. I do not have brass sheet handy, but I do have copper sheet. Would that work?