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  1. Replies
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    1,787

    To follow the above post, I have an "Asian" jig...

    To follow the above post, I have an "Asian" jig borer and surface grinder that make no apologies for country of origin. It's about the level of build quality in a machine, or the lack of it, that...
  2. Replies
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    1,320

    "Also if I plan to cut up to tool steel, I would...

    "Also if I plan to cut up to tool steel, I would have to go with carbide, correct? (I would think that HSS wouldn't work)"


    -If the "tool steel" hasn't been hardened you can most certainly use a...
  3. Replies
    8
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    721

    Most of the shops I worked at would try to keep...

    Most of the shops I worked at would try to keep two strips.

    1) Last run condition (kept with die)- Helpful to maintenance, QC, and calculating production run per service records

    2) First strip...
  4. My first question would be what method/tools...

    My first question would be what method/tools you're using to locate the ID hole before using a drill/end mill. If the lathe tailstock is out of alignment with the headstock then the hole will have to...
  5. Replies
    7
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    652

    Usually A-2 is used for general work in...

    Usually A-2 is used for general work in relatively low production runs of under 10,000 pieces. I'd make it out of whatever is low cost for you, case hardened or pre-hard may work for your application...
  6. Replies
    11
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    1,047

    I've used several on the job at various shops...

    I've used several on the job at various shops over the years. I didn't want to like the first one I used, being a resentful machine tool maker from America and all...., but I had to admit that it was...
  7. Replies
    15
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    1,605

    Several good points made above that I neglected...

    Several good points made above that I neglected to mention. Machine warm-up and way oiling can be important when attempting sub 5um. I'd also want to run the table/saddle along respective axis to...
  8. Replies
    15
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    1,605

    It will depend upon what you're grinding and...

    It will depend upon what you're grinding and whether you have extra material on it. Everybody has a favorite method for determining where zero is. For flat work some like using a strip of ordinary...
  9. Replies
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    1,185

    It will depend upon what type of stone you're...

    It will depend upon what type of stone you're using but if it's a natural (Novaculite, Limestone, Japanese type)or carborundum (India) then I'd say use it wet. Yes it makes "mud" and is a bit messy...
  10. I may be mistaken but I think you've got the...

    I may be mistaken but I think you've got the wrong idea about cryogenic treatment of steel. My (limited) understanding is that it is an enhancement to the hardening process, more fully converting...
  11. The bar is a good method, didn't know if your had...

    The bar is a good method, didn't know if your had the lift hole or not so I didn't mention it. I have a Mitsui that has similar provisions and used that to move mine, it's more secure than using a...
  12. If nothing else, rig an inexpensive shop-vac for...

    If nothing else, rig an inexpensive shop-vac for dust collection until a proper system is purchased. You really don't want those airborne particles deposited on machine ways as it will act like...
  13. It's a personal preference between using a...

    It's a personal preference between using a permanent magnetic or electromagnetic chuck, there's pros/cons for both. It's also personal preference using the type of chuck you linked that has "zones"...
  14. Replies
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    2,523

    I've never stamped Inconel so I'm just throwing...

    I've never stamped Inconel so I'm just throwing suggestions out there. How long is the unsupported length of the .008 punches at material entry? Guided box stripper supporting the punch? How much die...
  15. Replies
    15
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    2,476

    I haven't run a water jet but sent plenty of...

    I haven't run a water jet but sent plenty of files to the in-house guy after designing what was needed. The two different shops that had a jet used them mostly for plate work. Sometimes it was nested...
  16. Replies
    3
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    779

    I've been using the Okamoto and Mitsui grinders...

    I've been using the Okamoto and Mitsui grinders since they started showing up in the die shops back in the 80's. I didn't want to like them, being part of the Japanese invasion that began in the...
  17. Replies
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    1,406

    I took formal classes in Pro-e when it was...

    I took formal classes in Pro-e when it was version 2000i and successfully mounted the drop-down menu learning curve. I was a big fan of PTC but needed to use other programs on the job. Most...
  18. -The seasoned tech that was breaking me in told...

    -The seasoned tech that was breaking me in told me what might happen beforehand but said "You need to find out for yourself" and we had a replacement mirror. It amazed me how little it took to ruin...
  19. Can't help with the thread form/pitch but a...

    Can't help with the thread form/pitch but a lifetime ago I worked for American Optical as a field/bench tech. Cotton balls and Sparkle glass cleaner was what we used, wouldn't risk using an old...
  20. I took several classes in AC before moving to...

    I took several classes in AC before moving to Pro-E (v. 2000i) when most of the stamping/mold shops were closing in 1999. My preference for PTC software was largely based upon having learned the drop...
  21. I use CAD all day and there's been occasions when...

    I use CAD all day and there's been occasions when I didn't properly constrain/designate a line to be horizontal/vertical/perpendicular/tangent. It was close enough to appear so on the screen but...
  22. Replies
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    2,307

    Parts look good.

    Parts look good.
  23. It would help to have a good grasp of geometry...

    It would help to have a good grasp of geometry and algebra. Trying to determine a solution is recognizing what is known and what is unknown. A good grasp of geometry and algebra helps to identify...
  24. Replies
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    2,307

    You've not stated how many parts or the expected...

    You've not stated how many parts or the expected accuracy (tolerance) for the features, that makes a difference. I'd follow the suggestions others have made and use an edge finder on a finished part,...
  25. -No difference to split, I agree with you that...

    -No difference to split, I agree with you that when they think it's over IT IS OVER. Doesn't even matter what you did before. What have you done for me lately? As for the job, he's got to meet the...
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