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  1. W

    Davidson D-600 autocollimator - Can someone a few a few questions for me?

    Davidson D-600 autocollimator - Can someone help with a question? Hello All, I just purchased a Davidson D-600 autocollimator. Would someone with specific knowledge of this unit, be willing to answer a few questions for me? JB
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    Hydraulic check valve questions

    Hi All, I am putting together a hydraulic circuit and being an amateur at hydraulic I have a few questions. There is only one double acting cylinder in the system. My goal is to be able to extend or contract the cylinder and locking it in place when the directional control valve is put in...
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    Using a 40hp 3 phase motor for a rotary phase converter

    Hi all, In a previous post I asked about the best way to use my current 220v 10hp rpc to run my 20hp 460v lathe. One of the suggestions was to get a larger motor and make it into an rpc. Today I came across a reasonable deal on a baldor 40 hp 3 phase motor. As a side note I later found out it...
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    My lathe placard calls for 20w-20 oil not easy to find locally. Is there better oil?

    I bought a Leblond lathe and would like to change the oil in the head. The placard calls for 20w - 20 motor oil. I am finding it difficult to find locally and the oil I find online is a bit expensive. The lathe is a 1976, I am wondering if oil technology has changed and there is a better oil...
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    Advice needed for Modifying my current RPC to accomidate larger a larger machine

    Hello All, A few years ago I built a 220 volt 10 hp rotary phase converter based off of Bruce Norton's design. I figured that I would never need more than 10 hp. Well! I bought a Leblond 20 SL lathe that has a 2 speed 10/20 hp 460 volt motor. I do not not see that it is possible to re-wire...
  6. W

    Opportunity to buy a used Hypertherm Powermax 85

    Hello All, I just got a phone call from an acquaintance of an acquaintance or in other words someone I don't know. :) Anyway he has a 3 year old supposedly in good working order, hyper-therm powermax 85 he has offered to sell me for $2000. It is suppose to have the cnc card in it but it has...
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    Balancing rpc - what am I doing wrong

    Hi all, I just "finished" my 10 hp rpc. I am trying to balance the legs and I clearly am doing something wrong. The idle motor has a max amp of 26. My L1 - L2 are 209 volts. So far I have bc at 233v ab at 232v AC at 208v no matter what what capacitance I add to the CPf It won't change the...
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    RPC distribution advice please.

    Hello All, I have a 10hp RPC that I want to distribute to 3 machines and one socket, for various small 3 phase equipment. The machines are on the opposite side of the shop from the breaker panel. My thought was to mount, up on the wall, the RPC within 5 ft of the breaker box and use #10 wire...
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    MITUTOYO GML-3705 Manual

    Happy Holidays everyone! I just picked up a BP that has a MITUTOYO GML-3705 DRO installed. I am really surprised that with the amount of searching I have done I can not locate a manual for this. Does anyone have a pdf or copy of a users manual.
  10. W

    Logan 922 lathe motor support dimensions

    Hello All, I didn't see a Logan specific forum so I hope it is ok that I am posting here instead. I just bought an old dirty Logan 922 lathe. The lathe looked fantastic while sitting in the dark corner of the guys garage. Once I made the deal and saw it in the light of course there are some...
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    Questions about repairing my 6x18 electomag chuck.

    I have an electromagnetic chuck. It appears over the years coolant has seeped into the housing and has slightly corroded the colil on one end. The wires are intact but the varnish is gone thus creating a short. I want to pull the coil out clean up the corrosion and then spray with varnish or...
  12. W

    Will a loop foot cabinet drive unit work in a pedestal?

    I posted an unclear post earlier stating I was looking for a drive. I have found a drive unit out of a loop foot cabinet. I was told it would not work in a pedestal base. Can anyone confirms this or know if it could be modified to work?
  13. W

    Looking for a south bend Heavy 10 pedestal drive.

    I am looking for the drive unit for a heavy 10L south bend. I have the pedestal version of the lathe. I found a drive that came out of a loop foot cabinet. I was told this wont work in the pedestal. Anyone know what modifications I would have to make so that it would work? Jeff
  14. W

    What type of voltage monitor should I use?

    I have a 5hp 240v single phase air compressor. Last week in a wind storm we lost 1 leg of service while the compressor was running. The loss of the second leg resulted in the coil of the mag. contactor to fry. What would be the west way to prevent this from happening again. I am not sure...
  15. W

    Is there an Aluminum filler that can be polished?

    I am doing some repair work on some aluminum parts. I am wondering if there is a filler that is able to be polished?
  16. W

    440 hardings hvl-h and an RPC

    I am going to be working on a Hardings hlv-h lathe that has 440v motors. My thought were to build an RPC with a 5hp 3phase and have it setup on the high wiring scheme. I will be feeding single phase 240 into the rpc. First, will this work? Second, if this will accomplish the goal of producing...
  17. W

    Need the board schematic for the earlier 6F power feed

    I have an older style 6f power feed with a bad board. It is the version that had the controls on the table but the board was encased in a box mounted to the side of the mill. This board is not the same design as the newer 6f where the board was mounted on the table below the motor. I would...
  18. W

    Anyone in the Denver area know of a reasonably priced 5-10 hp 3p motor?

    Hello, What I thought would be an easy process of getting a new 3 phase drop into our shop that use to have 3 phase has turned into a hassle! Once you get the city involved and all of the BS they want to put you through it becomes absurd. So plan B is to build a RPC but I haven't been able to...
  19. W

    Help getting my head around exactly what I should request for a 3 phase install?

    Prior to our purchase of our little shop 3 phase was installed in the building. For whatever reason before the sale they removed the 3 phase and made it single phase. I believe it has 2 120 lines coming in. The energy company confirmed that 3 phase is at the pole but they would need to make a...
  20. W

    Best procedure to remove the 6f power feed sight glass

    I am cleaning up my 6F power feed and want to remove the sight glass to repaint. I would like to be able to reinstall the sight glass. What is the best way to remove it without damaging it?

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