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Hemingway spindle speed increaser
| lfoggy | 04/04/2019 11:14:15 |
 231 forum posts 5 photos | There was a thread back in 2011 about the spindle speed increaser designed by Dick Stephen and sold as a kit by Hemingway. There was some discussion about limitations of the design but it seems nobody had actually completed one. Has anyone built one since then? I have just started building one and am hoping to use it for slot mills 2mm in diameter. I am not sure how rigid it will be though as it is of lightweight design and relies on just a plain bearing at the top. |
| John Haine | 04/04/2019 11:31:43 |
| 5563 forum posts 322 photos | Will your mill run in reverse? |
| lfoggy | 04/04/2019 11:47:11 |
231 forum posts 5 photos | Fortunately my mill does run backwards.. i realise this is an issue for some machines. |
| Nick Hulme | 04/04/2019 15:02:46 |
| 750 forum posts 37 photos | My FB-2 will run in reverse, great for reversing out taps etc. but since the oil pump is a helical screw connected to the motor shaft you wouldn't want to run it in reverse for any length of time. |
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All Forum Topics > Workshop Tools and Tooling > Hemingway spindle speed increaser