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Thread: Drill press slop

  1. #11
    Supporting Member Hoosiersmoker's Avatar
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    bricolage, I think pfredX1 has the basis you need for drilling small, precision holes. I was always taught slow in metal fast in wood when drilling. I do a fair amount of drilling in wood, a lot of it has to be precise and I made wood "center punches" from scratch awls. I re-ground the ends with about a 15deg angle and mark the location before drilling. It eliminates almost all of the "wandering" and I use very high speeds for drilling. I also have learned to sharpen my own bits. I think the biggest hurdle for me is ending up with a perfectly centered point. Relief behind the edge is pretty basic and I have separate bits for metal as these are a little more aggressive than my wood bits (I'm just basically impatient i guess!). Before modifying the machine, I would suggest different techniques first. All it will cost you is some time.

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    Supporting Member suther51's Avatar
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    Old-toolmaker I will have to look into your suggestions, thanks
    Eric

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    Supporting Member threesixesinarow's Avatar
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    threesixesinarow's Tools
    Instead of modifying the casting you could bolt something like a shaft collar that fits the quill to the bottom and this will at least allow you to tighten up one end. You will lose some travel.

    Drill press slop-hmt_quillclamp.jpg.jpg


    But with little drills thatís only part of the reason holes can end up in the wrong place, especially in wood. Here are some different strategies I use depending on the hole geometry, drill length and point, and what preparation I can do.

    - Clark

    Drill press slop-hmt_sensitivedrillguide.jpgDrill press slop-hmt_unimatuniversal.jpgDrill press slop-hmt_doubledrillcloseup2.jpg

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    Jon (04-03-2018)

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    Supporting Member suther51's Avatar
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    Thanks more to consider!😊
    Eric

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    Supporting Member old_toolmaker's Avatar
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    old_toolmaker's Tools
    bricolage,

    Another solution I thought of is the Microlux #82959 drill press sold by MicroMark. It is not cheap at $269 but it has variable speed in two ranges up to 5000 RPM. It is a model makers drill press well suited to the work you do.


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    Links to some of my plans:

    http://www.homemadetools.net/forum/f...6068#post65876 OFF-SET TAILSTOCK CENTER PLANS
    http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
    http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
    http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
    http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION

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