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  1. C

    corrosion resistant Brass or Bronze

    A good clear coat of lacquer will protect brass well for 10 years or more. Only exception would be a if there is any rubbing to thin the clear coat. Would not hold up on a door knob very long. I have seen many things that look like brass but are actually a power coat. Last forever and don’t...
  2. C

    Problems with a 1.5" dia bore, 4" deep, BP clone, Criterion boring head.

    Not all dividing heads have an internal MT. Some use Browne & Sharpe taper or others. You need to find out what you are working with first.
  3. C

    Sperm Whale Oil

    Back in the 90's I was restoring a 1970 Challenger that had a Dana 60 rearend. Cleaned the internals, checked backlash, and changed the oil. There was a small IIRC 4OZ bottle of additive that had to be added to the gear oil that made the clutches work properly. Parts manager a Chrysler told me...
  4. C

    Engine main bearing housing repair

    Sort answer is NO and NO. Your picture does not show the actual damage that the 2 screws are holding together, but it can't really be that strong to support the forces a crankshaft sees when in operation. It's also on the thrust bearing for that engine, which means that bearing block must...
  5. C

    Riten MT3 live center will not seat in my Clausing 6913 tail stock

    Could also be bent. Only slightly and it won't seat properly
  6. C

    Clausing Colchester VS13 Shutting Off in High Range Only

    If it has been ran for any length of time or under heavy load with no oil in the headstock, my best guess is that some or all of the bearings may be toast. Could be an expensive fix but you need to do some testing of the headstock bearing movement both axially and radially to have a better clue.
  7. C

    Mit digital caliper f'd??

    My 8" MIT do that on occasion (twice in last 3 years). Don't know which model you are talking about, but I have to pull the battery for a few seconds, re-install, and reset the origin.
  8. C

    Can't find a carbide version of this bit?

    Agree with DCASH. Spot weld cutter. Just mark it out where you want it and use a carbide die grinder burr.
  9. C

    Precision Matthews Mills or What Should I buy???

    A PM932 is pretty much useless unless you want it as a drill press. Had one and it has a lot of shortcomings. Motor would get to hot to touch after 15 minutes of use, excessive play in the spindle column fit (not sure if it was even ground), head is not that stable for anything but very light...
  10. C

    trouble cutting a 8 TPI thread in SS304 - engine lathe

    If the swarf is jamming up like that I wonder if your holder pocket is worn/streatched. Unable to hold the insert firmly could be an issue.
  11. C

    Yet another gerstner clone

    Finally got around to looking up the pics of the box I made for my grandson. He's into bigger tools and I didn't think the 1" Gerstner style top drawers would have any value to him. Also wanting to keep the drawers as large as possible, I elected to not put on front locking cover. I never...
  12. C

    Yet another gerstner clone

    Beautiful work and beautiful wood grain selection. I built a clone for my grandson. Was walnut and walnut burls on the sides with some inlays. I also never thought much of Gertsner selection of joinery so I tried to improve on their design. Drawers sides were Birdseye maple with full dovetails...
  13. C

    Changing drive moter ratio on my lathe for more spindle speed

    If you do speed it up I would work into it slowly at first. There may also be problems with imbalance with rotating assembles. At that original speed chances are the factory did not have to balance anything. As you speed things up could be a different story. Listen for harmonic differences and...
  14. C

    Leadscrew nut material selection, Tell me I'm Nuts

    Thanks for your reply. That is exactly the problem I am having and why I started down this path. Depending on material and DOC I can get grabbing, probably in excess of the 40-50 you are seeing. Some on this site just think they are so cool and love to belittle posters. If they could read and...
  15. C

    Leadscrew nut material selection, Tell me I'm Nuts

    Its is a split nut and can be adjusted. Problem is over the years of the nut being misaligned (not parallel to the lead screw) the internal thread profile looks somewhat like a standard fine thread at the top and not an acme.
  16. C

    Leadscrew nut material selection, Tell me I'm Nuts

    Sectional thickness would not allow boring and sleeving. I can remake the whole thing, it just becomes difficult when my mill is apart. I would have to put it back together with the worn parts and use as is.
  17. C

    Leadscrew nut material selection, Tell me I'm Nuts

    Working on several problems with an older offshore milling machine that I am trying to restore. The x axis lead screw nut has a lot of slop (0.020) probably due to being misaligned/misinstalled from the factory. The lead screw is fine however only showing about 0.002 wear. I ordered both X & Y...
  18. C

    Starrett #811 indicator

    I've got a 811 with 0.0005 dial. I use to use it a lot but like my Interrapids now. Haven't used it in the last 5 years. If you are still looking for one PM me.
  19. C

    Micrometer 101

    looks like a paperweight to me. Sure aint a mic
  20. C

    Worm and Wheel Gearbox Design Questions

    I would stay away from drilling and installing a taper pin. Sounds like you would be creating a point of failure in the near future, unless there are no loads on the shaft.

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