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  1. Replies
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    They are small drones, powered by RC motors or...

    They are small drones, powered by RC motors or weed eater motors. Funny part is I almost had to beg for tolerances, generally no prints, only cad models, real low key. Just wish they paid quicker...
  2. I get more done with less distractions, after...

    I get more done with less distractions, after all, I am working to make money, not to just spend some time in the shop. For those times I need someone to bounce ideas off of or ask for help then I...
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    Are Boeing drones considered aerospace? Although...

    Are Boeing drones considered aerospace? Although the tightest tolerances I have had to do was for fiber optic test equipment, lots of .0002" tolerances. Never mind years of plastic injection molds.
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    If you control the temperature then it is not an...

    If you control the temperature then it is not an issue. I have an aluminum tailstock for my cast iron 4th. I made it in a hurry 18 years ago so that is why it is aluminum, it works well enough I...
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    Steel expands about half as much as aluminum. ...

    Steel expands about half as much as aluminum. You had another problem causing .005" of movement.
  6. If memory serves this machine has very low...

    If memory serves this machine has very low drawbar tension, like around 350lbs, so be very careful when milling. Corncob roughers will try pulling the tool down far less than any other endmill so...
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    The main argument we have is at the end of the...

    The main argument we have is at the end of the day it is hard to beat these type machines for throughput if you are doing any kind of production, and they are very energy and space efficient.
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    I have heard of them sending it back into the...

    I have heard of them sending it back into the grid but never storing it for the upcoming acceleration. I think this is more like what F1 does, short term, high burst storage. That is interesting.
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    Stores the energy? Please do tell more.

    Stores the energy? Please do tell more.
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    I have seen tools that are radiused top and...

    I have seen tools that are radiused top and bottom that would work, but can't remember where. Sorry, but it is out there.
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    The last time I looked Lyndex had the shortest...

    The last time I looked Lyndex had the shortest gage length face mill holder, but that has been a few years ago. At least try the stubby sidelocks, Maritool makes them 5/8" and smaller. The more I...
  12. I would try stoning it out first, masking the...

    I would try stoning it out first, masking the good section with tape so I didn't hit it with the stone getting most of it out. I have done the home shop regrind myself with a high-end die grinder...
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    The scroll compressor looks interesting. Oil and...

    The scroll compressor looks interesting. Oil and filter change every 3 years isn't bad and it cycles like a piston pump for variable air loads. I have been using scroll compressors for over 20...
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    What shape are the way covers and wipers in? ...

    What shape are the way covers and wipers in? They are not designed to protect from grinding chips. The abrasives will wear out the rubber wipers in hours so don't expect them to do their jobs. You...
  15. I don't know, never seen better for sale.

    I don't know, never seen better for sale.
  16. Yes, Bal-tec (https://www.precisionballs.com/). ...

    Yes, Bal-tec. My balls were 1/4" so the 2mm balls would have even smaller size differences to deal with.
  17. If Haas no longer sells them then ask them who...

    If Haas no longer sells them then ask them who they got them from, they should tell you if they are not going to sell one to you. Start with Haas then go from there.

    And get a part # from Haas if...
  18. Been there done that. .00005" is a big jump in...

    Been there done that. .00005" is a big jump in ball diameter if the balls do the preload. New ball screws use balls that are round to within 5 millionths or so, balls you buy off the internet, or...
  19. The negative rake of a proper blade will leave a...

    The negative rake of a proper blade will leave a better finish and cut smoother but tends to be more prone to welding.
  20. I use a 10" Hitachi sliding compound saw with a...

    I use a 10" Hitachi sliding compound saw with a $20 Concord blade for aluminum, better than an 80$ Freud and cheaper. I do help it cool with the shop ventilation system when I am loading new bars...
  21. Start with photos of you bluing a taper, use one...

    Start with photos of you bluing a taper, use one of Franks. It sounds pretty simple. You don't need a test bar. The runout is your tool problem, and the high spot isn't good for your tool holders.
  22. How do you clean it when changing tools?

    How do you clean it when changing tools?
  23. I have never had a taper ground in place but I...

    I have never had a taper ground in place but I have pulled spindles to have the taper ground before. I just had a spindle in my 2001 mill rebuilt right so don't think it isn't a good option if the...
  24. I think it's more just lipstick on a pig. I like...

    I think it's more just lipstick on a pig. I like the idea and have known of it for a while but I think the best money invested would be making the switch to SK type collets and holders. The taper...
  25. Balls wear the most, then nut, then screw. ...

    Balls wear the most, then nut, then screw. Replacing the balls isn't hard, just tedious. It takes time to figure out exactly what ball to use, but does depend on the type of nut and how it is...
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