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  1. SmithDoor

    Know where your fingers are---

    They one saying at retirement can count to 20 on hands and toes. Back 1970's they most shop accident happens in last 2 hours of day. If look at this data do save safer work at end of day. My shop we did cleaning parts and painting in last two hours of day. This worked no accidents need a...
  2. SmithDoor

    Hello from the great down under!!

    Welcome to group. Dave
  3. SmithDoor

    Positive - Negative Rake

    The positive rake works with all metals. If cutting A36 a rake of 10 to 20° works great. Some metals 30° will works best. 12L14 a rake of 5° to 7° works great. Dave
  4. SmithDoor

    Grooved wheel

    Here photo of the wheels. The big wheel is a 1,000 pound casting.
  5. SmithDoor

    Grooved wheel

    I have manufacturer thousands of Grove wheels. The best found is plunge cut. The cutter needs a high rake angle 10° to 20° or lathe will chatter. Dave
  6. SmithDoor

    Over engineered electronic dividing head

    A good BS-0 will do great job. I have own mind since the 1980's. Just think of how many TV's you purchase since 1980 and I sill same diving head.. Dave
  7. SmithDoor

    Igauge scales

    I found this type of DRO eats batteries. I have one on mill and ever time it is used it is time to replace the battery. Now I buy batteries in 50 pack. Dave
  8. SmithDoor

    Stash of magazines available

    I glad they new home. It had to find data today and old magazine and books still have the information. The new magazines and books have remove a lot of old data that still works today. Dave
  9. SmithDoor

    Reciprocating Steam Engine V.S. Compound Steam Engine, Any Difference?

    Since we working with models it come down to witch one do you like. Dave
  10. SmithDoor

    Machining hard steel

    I have used a Dremel in past for a very thin Grove. It hard to make a square bottom. I did find most work the carbide tool bits was faster and gave a square bottom. Dave
  11. SmithDoor

    Machining hard steel

    positive rake. This also works on harden roll pins. Dave
  12. SmithDoor

    Machining hard steel

    I just used carbide and grind with a 7° to 10° rake. The cutter will last for one bearing Dave
  13. SmithDoor

    Stash of magazines available

    Good luck. Like self I a few binders with machine shop and foundry data. They over 40 years old and data great and can not find any data on internet 😒. It sad that so few that want great data.. I built my foundry from this data.. Dave
  14. SmithDoor

    Getting in Trouble for Metal Chips in the House

    Need to plant a tree 🌳 they always need water 💧. Dave
  15. SmithDoor

    Getting in Trouble for Metal Chips in the House

    I move shop to new location My has new car 🚗 so took a storage shed and insulated and plywood walls . Fix the problem now hobby shop is in backyard. Dave
  16. SmithDoor

    Getting in Trouble for Metal Chips in the House

    Take off shoe in shop. I have try everything. The only thing that work is a set shoes for hobby shop. Your clothes will also hold ships too. I will use a shop coat too. Dave
  17. SmithDoor

    lathe tooling for casting kit. Turning a lot of iron and bronze, occasional aluminum I suppose.

    Cast iron is great to machine it on best metals. Aluminum is good to ok great age better it machines. Brass/Bronze use dill cutters shape cutters will pull the cutter in to the work. Dave
  18. SmithDoor

    Looking for shaper article reprint put of 1953 Popular Mechanics or similar magazine. Previously found it on this website and downloaded and my lustri

    The last time I had a shaper was around 1970 it weight was 2 tons no fun to use. Next had a shaper for Bridgeport till 1990's. Now looking at add shaper to my bench mill. Something like 3" (75mm) shoke. I have hydraulic pump and value. This is space saver as hobby shop is only 100 sqft. It...
  19. SmithDoor

    Looking for shaper article reprint put of 1953 Popular Mechanics or similar magazine. Previously found it on this website and downloaded and my lustri

    Looks great👍. What like about a shaper is making internal gears. Most other jobs a mill will do a great job. Dave
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