- Feb 10, 2018
- Reaction score
- Central Florida
Exactly what I experienced. If I turned .005" (radius), the chips came off with hardly any color change; maybe a light amber color. If I cut .010, they came off deep blue and brittle.D2 steel is a semi stainless air hardening tool steel. It is designed to be an abrasive resistant steel.If you are causing enough heat machining it it will harden and be harder than your HSS. You will be better off using carbide and cutting deep and fast than slow and thin.
You remember it right. I bought ball bearings. The ones called out on sheet 21.then next are you going to use bronze bearings instead of roller bearings? for some reason I thought you were going with rollers? if so the part you have pictured is not required. I got mine on ebay. not the cheapest bearings but I do prefer rollers if possible.
on that part the crank pin is solid because I didn't do a grease cup - used ball bearings. here are the ball bearings I used - copy and paste from my ebay order. came in a pack of three, only 2 are needed installed side by side. Team Associated 8682 Bearings, .250 x .375 x .1 inches RC10F6And I was looking at the crankpin grease cup on sheet 13 of the drawing to go in the top hole of that piece, where you have a threaded rod. I don't even see where that comes from. I mean, did you change dimensions on whatever that drives?
Brian - hoping replying to you pings this so you know this is here.Bob--the spacer is exactly that.--a spacer. It doesn't attach to anything. It fits between the small gear on the crankshaft and the left hand sideplate on the engine. For answer to most of your questions see posts #47 thru 51, post #98, 264, and 306 on the following thread.