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  1. CFLBob

    Shop Vac Question

    The inescapable cleanup from the milling machine either ends up in the shop vac bag, in the case of steel chips, but I sweep aluminum chips up with a small dust pan and save them in bucket, believing that someday I'll melt them down and cast aluminum. Monday, while I was sweeping up a few...
  2. CFLBob

    Another Rupnow 1 by 1

    Unfortunately, the biggest drill bit I have is 1/2" - except for some spade bits for wood. I didn't even think of those spade bits until now. I've never tried a spade bit on aluminum, but so many other wood cutting tools work on aluminum at the right speeds and feeds that I wonder if it...
  3. CFLBob

    Another Rupnow 1 by 1

    Just an update so that I don't want to fall so low in this category that I have to go into the second page. I had been looking at the engine mounting plate for the next thing to work on, after I did some adjustments to my lathe to tighten the gibs and stop the compound rest from wobbling. It...
  4. CFLBob

    Ford 300 Inline Six

    Interesting - to me that link says five in stock and delivery next Friday, the 26th. Or I can get it this Friday, the 19th, if I want to pay more for shipping. Brownells has a bottle twice the size for $30 instead of $20. Twice the quantity for 1-1/2 the price is good if you're going to use...
  5. CFLBob

    Ban on small engines in California

    There was an interesting article in MIT Technology Review a few months ago. The point was that solar panel adoption is likely to slow down because the more solar that gets added to the grid, the less valuable it becomes. They say some academics have been warning this is coming for years. They...
  6. CFLBob

    Ford 300 Inline Six

    How tiny is it? I was trying to extrapolate from those fillets around the base being 1/8" diameter and it seems to be coming up to 3/4" tall. Maybe 1" tall.
  7. CFLBob

    Ban on small engines in California

    Solar and wind in particular have horrible pollution, it's just that most of it is where you don't see it - at the factories and in the waste stream. Ever seen what gets done to wind turbine blades when they wear out? There's no known, good way to recycle fiberglass reinforced plastics. I've...
  8. CFLBob

    Ban on small engines in California

    The fact that a brand is selling well is an indication that the brand is popular, not that what it's selling is the best solution to every problem. That could be due to any number of reasons, the simplest being simply that it's trendy. When I was a new grad engineer, an old graybeard told...
  9. CFLBob

    Ban on small engines in California

    While this thread has taken some turns that have gone too far at times (IMO, of course), it's also relevant to a model engine forum. If small IC engines are outlawed, doesn't that outlaw our model IC engines, too? I asked pages and pages ago, and the answer I got is that nobody knows. Which...
  10. CFLBob

    Wise choice or not?

    I'm still using Rhino V5. When they were pushing the upgrade to 6, the emphasis seemed to be on pretty rendering and Grasshopper as programming language. Rendering is nice, but I'm not designing jewelry or pretty stuff for consumers, and in the last five years I've never done something that I...
  11. CFLBob

    Another Rupnow 1 by 1

    Thanks. That's better as a question for Brian; I'm trying to understand where that side goes and if simply cutting it off would even matter.
  12. CFLBob

    Wise choice or not?

    I noticed this thread today, but should have chimed in before. I bought an Ender 3 V2 just after the first of the year as a belated Christmas gift. It's my first 3D printer, but I've been playing with and learning G-code and CNC tools for quite a while, about 2005. Other than some minor...
  13. CFLBob

    Another Rupnow 1 by 1

    I thought I'd wait to update this thread until the crankshaft was finished, which I would have sworn would be a week or more ago but kept eluding me for various reasons. Most of which come down to learning a lot as I'm going. This picture is just posing. The counterweights are just sitting on...
  14. CFLBob

    Ford 300 Inline Six

    Are those tenons semi-circular so that when they're in the right place they'll create a small cylinder with the gear bored to that diameter? They appear to be that way. I guess the alternative would be flats with matching slots machined in the gear.
  15. CFLBob

    Ban on small engines in California

    Gas washing machine? Haven't seen one. I've been converting major appliances to gas power over the last decade. While my electric costs have gone down, my gas bill went up but nowhere near as much as the electric came down. My total energy costs have gone down. There's absolutely zero...
  16. CFLBob

    Ban on small engines in California

    Nobody asked the obvious question, so I will. Does the law outlaw our little internal combustion engine models? It doesn't affect me, I'm in Florida, but if all ICEs are outlawed that includes our little engines. I've seen many people showing big engines they've built.
  17. CFLBob

    I Robot--

    That is really impressive. When this topic popped up in today's email summary, I thought it would be about building robots, but I guess the school kids doing the fighting robots is where that activity is centered.
  18. CFLBob

    Sudden Problems With my Printer

    I hadn't thought of going over everything again for fastener tightness, and ensuring it's all square, but I used a machinist square while I was putting it together. The move itself (carrying from one bench to the other, so maybe walking 8 feet) was last April and I've printed many things with...
  19. CFLBob

    Sudden Problems With my Printer

    That's a good thought, and yes, it's a microswitch. They're on all axes. Having worked with them, I have to say at least some versions aren't very repeatable. Maybe higher priced switches in the product line are better than the ones I tested. The two major things I've done since the first...
  20. CFLBob

    Sudden Problems With my Printer

    No such sophistication about the file. I was just going by the date in the file name. Not like I don't change filenames all the time myself. It actually works well and looks like the SW I was using. Looking at the Creality support website, my guess is that at some point right after I got the...
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