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  1. J

    Boring to depth on an HLV-h (clone)

    I have Sharp HLV-H clone. I understand how to thread to a stop, but want to bore to a stop using the carriage power feed. Currently I get it close on the power feed and then walk it in by hand on the DRO, which results in either telling me how much I overshot, or getting to the right place but...
  2. J

    Mahr 817 CLM transportation and accessories

    This started from a set of DMs with another member who purchased one of these used, but I figure it might be useful to others, so I'm posting here. I'll start with getting it home and then add some notes about the probes and carriers. You need to get it home. It weighs about 65 lbf, so some...
  3. J

    Do your Albrecht keyless chucks fully close?

    I have 5 Albrecht chucks, one little guy, one 3/8" max, and three 1/2" max. The smaller two close completely, but the three 1/2" ones all stop before fully closed. All of these were bought used, but I've removed the hoods, cleaned out any chips, and they still look like this after reassembly...
  4. J

    Moore 11" rotary table oiling and feel

    I recently bought a Moore 11" from another member here for a metrology project. My first observation was that while not coarse, it does take a lot more torque to turn than I had expected. For a stiff low runout system this may be fully expected, but I've never used one of these vs. a normal...
  5. J

    Deckel optical rotary table specs or manual?

    Another member suggested a Deckel optical rotary table for a metrology need I have. Does anyone know, or know where I might find, runout (radial) and rotational error specifications?
  6. J

    WTB 11" Moore Rotary Table

    Per title, looking for an 11" Moore rotary table, pickup near or shipped to zip 94110. Prefer the super precision (2 second) version, but might accept the precision (6 second) version. I'm aware they are readily available on Ebay, but always prefer to deal with known members if it's an...
  7. J

    Lift and tie down points for an HLV clone

    Per the title. I originally posted the below thread in rigging, but this may have been a better place. Do any of you have suggestions? Link below. https://www.practicalmachinist.com/forum/threads/moving-and-securing-an-hlv-h-clone.413213/
  8. J

    Moving and securing an HLV-H clone

    I’ve moved a couple Bridgeports and a 15x50 lathe so I’m somewhat familiar with moving objects of that weight and not tipping over top heavy objects. I’m likely going to be moving a Sharp 1118H, an HLV-H clone, in a few weeks. It’s a bit narrower than the 15x50 and just as tall, so I’d like...
  9. J

    WTB Optical flat

    These don't seem to pop up in here often, but I figured I'd ask here for a week or two before getting one of the Ukraine sourced ones on Ebay, good as I hear they are. Large flat and/or parallel set. Planning to make my own light source since those are harder to ship, but if you're within...
  10. J

    Smallest contact patch on a granite table?

    I’m in the process of making a few gauges which need to sit on a surface plate. Similar examples would be an indicator stand or a height master. I want them to be on 3 corner feet rather than one large flat because everything I have on large flats tends to develop a micron or two of play when...
  11. J

    Lapping plate material questions

    I've used planetary lappers with cast iron plates and SiC abrasive in the past. I'd like to understand the process a bit better, and am using hand lapping to get some practice with the fundamentals. Question 1: Low speed tool sharpeners like Glendo/Accu-Finish have a smooth ceramic plate as...
  12. J

    Alternatives to Atlas Copco DC Nutrunners

    I have an application where I want good control with torque and angle readouts. In the distant past I've been happy with Atlas Copco DC nutrunner tools for this. Last time I tried to contact a sales rep (phone and e-mail) it took a month to get a response, and that was after we had bought...
  13. J

    Making granite parallels and squares - is any granite sufficient?

    To start with, this is more an exercise in gaining some experience than it is a need for calibrated tools. I do regularly use some shop made steel parallels, but it's a bit more work to keep them from rusting than I'd like, being magnetic is inconvenient for some of my work, and occasionally I...
  14. J

    WTB Norton or similar brake dresser

    As the title says. Have an upcoming grind project with a diamond wheel and would like to stop truing with mild steel.
  15. J

    Measuring roundness/rotary table repeatability

    I have a part the size and shape of a margarine tub. I need to measure the roundness at a few different heights on both the ID and OD. Some of the parts are transparent and others are very shiny so my usual laser ranging device isn't getting a good reading. I do have a Tesa gauge head that is...
  16. J

    Correct bull gear position?

    I pulled this head apart a few years ago to replace several bearings and discovered the smaller bull gear (PN 34 below) was rubbing on the housing (PN 38). Parts diagram courtesy of H&W: Here is the housing (click for large version): Here is the gear I'm talking about (click for large...
  17. J

    Is this a knuckle thread?

    Trying to make a part that interfaces to something I already have. It's a low stress joint so just making something up would work, but I'd rather understand what's going on and learn something if I can. Manufacturer is in Germany, so I'm guessing metric. My thread pitch gauge is inch and...
  18. J

    Mitutoyo vs. Mahr height stands

    Now at a place developing optical systems. We have a CMM, but it's often backed up and we're still getting the operators up to speed on general metrology. As a result we've been doing a lot of manual layout. Parts are inconvenient to ship, and we typically want same day measurements, so we...
  19. J

    OSHA and 120 PSI air

    A seemingly silly problem, and far from the biggest one in my day, but I'd like to solve it and figure someone here can help. I'm working in a non-production environment in San Francisco. There is a prototype shop on site, but that is <5% of a mostly office environment. I'm trying to put an...
  20. J

    Pole direction on electric chuck

    In looking at electronic chucks today I noticed that the standard chuck comes with longitudinal poles and the fine pole chuck comes with transverse poles. I think I understand the benefits of going with a finer pole spacing, but I don't really understand the tradeoffs of pole orientation, and I...

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