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Hey all, I’m looking into what would be a fair pricing of a motor I can no longer finish and would hate to see it in the scrap pile. I made a double size kerzel hit and miss from plans on the internet, so anyone should be able take over from here. As you can see i made the alum. body, with...

I’ve sold my mill and no longer need most of this stuff. So if you’re interested in anything u see msg me and we will work out a fair price. I’d rather give u guys a chance before the eBay Harold hall grinding attachment with mag bases and drill sharpener. Mituyo 3 piece gauge set. Spi...

I have new in the box plan set for Ron colonna 270 offy. Not sure what I paid but the cover says 90$. Sounds high to me so I would take 65$ w free shipping in the u.s. outside US the shipping is on you after and agreed sum

I have new in the box plan set for Ron colonna 270 offy. Not sure what I paid but the cover says 90$. Sounds high to me so I would take 65$ w free shipping in the u.s. outside US the shipping is on you after and agreed sum

I'm looking for info on the fusion 360 manufacturing setups. When I get the dialog box open for a new setup, I sometimes forget to change mm to inches. When I do this it takes my unfinished setup 1 dialog box off screen and I can't find where to open it again. If I go to the main header...

I bought a little mill of eBay with the intent of learning cnc before I retrofit my current mill. It is a cheap China 1610 , or 3020, by model numbers sold on eBay. Seller posted new in box , which translates to no instructions , no cd, no nothing, so I'm hoping someone can help. it runs on...

I'm looking for info regarding how to calculate the pin size for rings in heat treating according to the Trimble method. My measurements are Piston. 1.499 inch Cylinder. 1.5 Ring size. 1.5 od .065 thick .285 wide Trimbal states 2/3 of the gap will be left after treatment...

whats an acceptable runout for a crankshaft. I'm up to about .003 runout and wandering what others are getting.. I know zero is prime and I do plan on making collet adapters for the flywheels to control wobble there. So what's the ballpark u all are getting or a good place to shoot for?

ive been building a quick change toolpost for my Southbend and my 7x10. I picked up a rough set of free plans on the net. The 7x10 is made to plans, and with the SB ,I increased the cam rod inside and outside diameters to offer more area to tighten on the bottom flange, made a little taller...

the cheap plastic handles on my mill have broken too many times so I ordered cast iron from grizzly. For a decent price I was able to get all three for 40$. They come un machined to fit. My mill uses the word the three prong cog. My question is how to make the cut. What I do know is...

Looking for info regarding bronze bearing fits. I looked around for some info, and wasn't able to find a situation similar to mine, so thought I could ask you all. These are bearing for a hit and miss crankshaft, and with bolt down caps. I'm wondering about the squeeze on the bearing, and...

i am setting up a grinder station to grind my tools and have ?s regarding wheel types used. First off I will be grinding lathe bits, drills, and possibly endmills. I have the Harold hall grinding jig book on the way to help with angles. My question is more of what kind of wheel to use...

building my first I.c. engine and have been reading up on how to properly finish the bore. The bore will be cast iron and is undersized .003 with finished bore of 1.5 inches. The plans call for lapping to size and my bore is pretty rough from cutter issues. I am not worried about a...

I'm getting setup for a line boring job and have some ?s about setup. First being how do you measure the distance of the cutter head. My guess is half diam. of bar plus tool extent. Can this be done on a 4 jaw setup, or with lathe dog/plate setup only. Most info I've read so far push...

I'm building a Kerzel at double scale and my guess it size wise I will end up about 1/4 scale of other hit and misses. I think with the added compression and so forth, if I should upgrade?. Original version calls for alum. I would prefer steel but don't know a suitable one to pick . Will have...

ive been scouring the net for a certain style connecting rod for my next build, and am having no luck finding a photo of it. Don't know if my search words are wrong . What I do know is it came from a marine engine and will be turned on a lathe for a round shank that tapers to a bolt on...

When I first started looking at model engineering I was baffled by the amount of items that people chose to scale model. Which is quite literally everything. The amount of time involved and the craftmanship is quite stunning often times. But when choosing my projects I really like true...

Hey all fellow modelers. Finally picked a new project so this is my choice. I picked this engine for a few reasons. First being its I.C. I looked strongly at the knucklehead by draw tech, Edwards radial five, and Ron colonna' offy four cylinder. And decided these were above my pay grade...

looking for an alternate cad program besides fusion360. I've tried and tried to get someone to explain their design intent and no one really seems to know how to explain it. Even the vids for mine and others issues start off explaining then move on to whatever part they are working on. Totally...

As name reads need help understanding fusion. Ive seen multiple videos for many features but to me the language is cad suited, and hard to understand for a first timer. While I am working thru it with moderate success following the get started courses, I am lost on the bare bones...