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Type: Posts; User: llilrex

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  1. Re: 1.st stage axial compressor designed with DIY automated CAD construction workflow

    have you estimated the stage compression ratio? At such a small scale the blade airfoil matters less due to the Reynolds number. what is the compression ratio that you are shooting for when you have...
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    Dual spindle lathe

    Well it looks like this is the forum to post builds. So here is mine.... A long time coming. I have made lathes before but this is my most ambitious project yet. I have had this plan for years but...
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    Well I decided to do it 30mm x 10mm lead, here...

    Well I decided to do it 30mm x 10mm lead, here are some pics. I constructed a steady rest for the project and made a form tool. There is a small amount of chatter. I am looking forward to test its...
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    Re: homemade ballscrew

    ger21, thanks for the force estimate. I was originally thinking about a gantry router with about 2 hp spindle. I might try it on a metalworking lathe project I am working on. I have an old textbook...
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    homemade ballscrew

    I am wondering if anyone here has attempted to make a ballscrew? Also I am used to working with hardened ballscrews, but I know that some ballscrews are made from relatively soft material, and...
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    Yasnac MX1 machine control comm

    I have my machine hooked up to a DNC program on a computer. it transmits the data reliably only part of the time. I can correct this by removeing all of the end of block characters that do not...
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    Matsuura spindle speed

    I have an old Matsuura, it is a 760V circa 1983. I plan on running some aluminum parts on it. the spindle speed maximum on this machine is 6000RPM, my question is by experiance, how reliable is the...
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    my sand isn’t right. it wont release. also I...

    my sand isn’t right. it wont release. also I don’t have enough sand. this puts a damper on things. unfortunately the lack of sand makes the coup and drag design more difficult. I have been having...
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    well I unloaded the CNC machine, the paperwork...

    well I unloaded the CNC machine, the paperwork online says that it weighs 11000lbs, I dont think this is correct. a large forklift that had an unuasualy hard time picking it up, now I know that it is...
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    picking up a Matsuura MC760

    I am planning to pick up a MC760 from a trailor with a crain. are there any lifting points on the machine that I can use? or is there any part of the machine that I can pick it up from? it is said to...
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    I have not finished the flasks, but I am close...

    I have not finished the flasks, but I am close here are the pictures
  12. Thread: book on cannon

    by llilrex
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    book on cannon

    I am wondering if the knowlagable people here might know some good informative books on smoothbore cannon and early breechloading (pre 1898). I have a realy good book titled british smoothbore...
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    I thought I would update this project. had a...

    I thought I would update this project.

    had a few problems, the first is that I seem to have misplaced a good portion of my sand. about 150 lbs of it. so I plan to remake the flask so as to...
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    Lucky13, the grizzly surface plate comes with an...

    Lucky13, the grizzly surface plate comes with an instrument runout map of the surface. it is acceptable for my purposes. so it should conform to the standard tool-room grade that it claims. I have...
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    Here is a progress report. I will be trying to...

    Here is a progress report. I will be trying to get to pouring the aluminum tomorrow. I have the fillets in but not shaped yet.
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    I would buy a chuck back plate and fit the collet...

    I would buy a chuck back plate and fit the collet chuck to that. simple and easy and accurate. I would avoid the temptation of chucking the collet chuck in a three jaw.

    good luck.
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    a quick update I have amended the design for...

    a quick update

    I have amended the design for the gantry bridge. I am thinking about a rail to rail spacing for the Y axis of 4 inches. This will make the gantry shorter. It sits at 13 lbs of...
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    I have always wanted to use a power scraper, just...

    I have always wanted to use a power scraper, just havent had the chance. I would use it in a heatbeat though. If nothing else but to rough it in. but as I understand it they are capible of fine work...
  19. Thread: Gantry mill

    by llilrex
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    nice work. I would like to mill PC boards on my...

    nice work. I would like to mill PC boards on my mill. I have the carbide engraver bit for it. now I just need the mill :)
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    Here are some preliminary designs. I will...

    Here are some preliminary designs. I will probably change a few things before its done.

    As for the scraping thing, I learned originally form an old navy machinist, he used to make me scrape...
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    Thanks for the interest. I have designed the...

    Thanks for the interest.

    I have designed the mill to cater to the scraping process, in that I can take advantage of the inherent accuracy of the process, without complicating my life with the...
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    Here are some pics, I scraped these to about 5...

    Here are some pics, I scraped these to about 5 spots per square inch. Since it’s not a bearing surface this will be enough. I bought the Rails from NXB, and bought the plate from SpeedyMetals. the...
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    a metal cutting Gantry Mill

    I have a new project that I am putting together. you might be interested in it. I have designed it to cut metal, steel and the like. and it is based on aluminum structure. The project got started in...
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    High quality castings require a high quality...

    High quality castings require a high quality process, however, it is possible to melt and cast inclonel or other super alloys at home. And it need not be that hard, done it myself a few times...
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    I have been working on the slide carriage;...

    I have been working on the slide carriage; unfortunately I am battling serious square and parallel issues with the mill I am using. Oh well, I will just have to be more creative on setting up my...
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