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  1. JAndrew

    Two South Bend 13" Questions...

    Hello all, I picked up a South Bend 13 lathe a few months ago locally. I've been looking for one for quite a while now. I'd like to think that this is the last lathe I'll ever need to buy (though my wife doesn't believe that). Here's a couple picture on the trailer and of a creative method...
  2. JAndrew

    Fabricating Leadscrew Nut Questions...

    HMEM, I had to stop working on my first IC engine and tear down my Diamond horizontal mill's table. The leadscrew nut for the y axis is shot. There's no chance of me finding a replacement anywhere as it has an odd outside shape so I was going to go ahead with turning one myself (using the...
  3. JAndrew

    Incredible Vintage Machinery and Steam Engine Photos

    HMEM, A coworker of mine happened upon a stash of incredible glass plate slide photos from the early 1900's at Bath Ironworks in Maine. Another coworker of mine was able to scan them to incredible resolution. I doubt you'll see these photos anywhere else in the world. -J.Andrew
  4. JAndrew

    Minimizing heat build-up when milling?

    HMEM, I'm milling quite a few 1/4" wide grooves in carbon steel to a depth of .315". I'm using a nice carbide end mill and taking passes of .020" at a time. I've been running the spindle at 1200 rpm but the part is getting pretty hot by the end of milling one groove. I don't have a coolant...
  5. JAndrew

    Diamond Mill with Rusnok Head - No more excuses...

    Hello, Just wanted to share some pics of my recently acquired Rusnok milling head. I've had the Diamond horizontal mill for a while now and was able to pair it up with the Rusnok I happened across on Craigslist. Here's the photos: This leaves me unable to make any more...
  6. JAndrew

    Any good uses for bulk iron oxide (rust)...?

    HMEM, I now have at my disposal 3 dumpsters full of rust ranging from small chips to dust particle size. I'm wondering if anyone has any creative uses for it? From what I understand it could be smelted back to useable iron but that's a bit beyond the scope of my abilities. I have a manager...
  7. JAndrew

    Kiln Tongs or Grabbers...?

    HMEM, I'm hoping to get either pictures of homemade kiln tongs or links to commercially bought ones. I picked up an electric kiln from a local hippie woman for only $75. It's pretty big. About 15-20 inches deep. I plan on using it to do some heat treating for now some casting later on. I...
  8. JAndrew

    Anyone have experience working on large Victor Lathes?

    HMEM, I'm searching for anyone who has ever performed repairs or any kind of maintenance on large Victor lathes. The lathe in question I believe is a 16x60 and has an issue with one of the leadscrew drive gears. I have the basic operation manual for it but it's a poor translation and...
  9. JAndrew

    Small Milling Table CNC Conversion a Worthy Endeavor..?

    HMEM, I used this small milling table from Grizzly for quite a while to do light milling on my drill press: Now that I have a mill I was batting around the idea of re-purposing this table for use as a CNC engraver or for light milling. I'm looking for input as to why this would or wouldn't be...
  10. JAndrew

    How concerned should I be about Lead (Pb) content of free machining metals?

    HMEM, I've been doing more projects with 12L14 steel and looking at future projects with brass alloys. 12L14 and most machinable brasses have a Lead (Pb) content of a couple percent. How fearful should I be of this Lead. Maybe I'm just oversensitive to this topic because I live in...
  11. JAndrew

    Quick and Easy Tangential Tool Holder

    Hello, I was able to make a RH tangential tool holder yesterday fairly quick and easy using my lathe's milling attachment and a 1/4" wide woodruff keycutter. The milling attachment was the easiest way I could come up with for cutting compound angles. I had to have the 7/8" 12L14 stock hanging...
  12. JAndrew

    Amateur Question: Metric Threading Calculations?

    HMEM, I've run into a threading calculation that I can't find a straight answer to online. I need to cut 50mmx1.5mm external threads for my ER-40 collet chuck. More info in this thread: http://www.homemodelenginemachinist.com/f13/spindle-threaded-er-40-collet-chuck-atlas-22149/ When I cut...
  13. JAndrew

    Spindle Threaded ER-40 Collet Chuck for the Atlas

    Hello, Chuck Fellows recently posted his ER-32 collet chuck for a mini-lathe that was backplate mounted. I appreciate his post a lot as he provided some good advice on getting the 8 degree taper for the collet precise. I'm going to post progress on my collet chuck but be forewarned: "I have...
  14. JAndrew

    Amateur Question - Is "coring" possible instead of "boring"?

    HMEM, Here's the question: When you bore a piece to expensive stock, the cylindrical section of stock in the center gets turned into chips that are longer as stock... So...is it at all possible to remove the center section in one useful piece by coring with some type of custom cutting tool...
  15. JAndrew

    Unimat 1000SL w/ Accessories f/s on SoCal Craigslist

    HMEM, Here's an ad I found on my local craigslist. (I'm not selling this item just forwarding the ad) http://sandiego.craigslist.org/csd/tls/4105049047.html I like it when I find equipment with some history provided with it. I don't know if this is a good buy or not but hopefully...
  16. JAndrew

    FOUND- early bench knee mill -

    Hello, My drill press with small milling table works for light work but it's time to upgrade. I'm seeking an older model bench knee mill (American-made preferred). My ideal setup would be a horizontal mill with a vertical milling head that can be attached but that's probably a pipedream to...
  17. JAndrew

    Canned air is extremely explosive...

    Hello HMEM, This isn't exactly a machining blunder but there's still several lessons to be learned here. Tonight was the wife and I's wedding anniversary. After a long day at the plant a good crockpot meal of chicken was just the ticket to lift my spirits. The wining and dining over...it...
  18. JAndrew

    Air Powered Motors Theory of Design Questions...?

    Hello, Several questions relating to AIR powered motors: 1.What is the effective RPM range for air motors? I read somewhere that above a certain rpm air motors don't have enough time to fill the cylinder with air so they need a lower rpm range than IC motors. 2.When would double acting...
  19. JAndrew

    What have you made for your kids or grandkids?

    HMEM, I'm hoping to start a thread of pictures, plans, designs, or ideas for simple children's toys. As an example here's some pictures of a pretty ingenious 3d printed toy from Thingiverse.com: Here's the link to anyone interested: http://www.thingiverse.com/thing:90302 I could see a...
  20. JAndrew

    How do you accurately set adjustable reamers to a diameter?

    HMEM, I recently acquired an Atlas lathe with a good deal of tooling. Inlcuded with it was a set of 5 various size adjustable reamers. It looks like the cutting blades are adjusted by threading the collars up and down the length of the tool to vary the diameter. What I can't figure is how...
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