| Gallery, Projects and General > How do I?? |
| Draw Bar T-Wrench? |
| << < (2/3) > >> |
| Swarfing:
Is it not possible cut the end off, drill and tap it, add a large socket head bolt and pin it? or turn the bolt down, knurl it, drill the hole just under size and wack it in with some loctite and pin it? |
| Rikk:
Didn't even think about replacing it, or a nice big knurled knob would be nice....what that's what she says ;) How tight should the draw bar be done up? |
| bigmini:
--- Quote from: Rikk on February 10, 2011, 05:19:47 PM ---Didn't even think about replacing it, or a nice big knurled knob would be nice....what that's what she says ;) How tight should the draw bar be done up? --- End quote --- Probably not as tight as you could get it with a socket wrench. Perhaps keep the lever arm on whatever you use to do it up to no more than a couple of inches - like a chuck key. I do mine up with a 4" shifter, but the knob sounds like a good idea. |
| andyf:
--- Quote from: Rikk on February 10, 2011, 05:19:47 PM ---.... How tight should the draw bar be done up? --- End quote --- Not so tight that you break the wrench :) Actually, I found that it was a lot less than I first thought, and that firmly finger tight, and then perhaps another turn, will do the trick for my 2MT spindle. That seems to work OK for my flycutter which sweeps a 2"/50mm circle, and hence exercises a fair bit of leverage. The trouble with overtightening a Morse taper is that you end up banging harder than you want to on the end of the drawbar to get the thing out. I imagine that a more pronounced taper such as R8 is a lot easier in that respect. Of course, you don't want the tapers to slip, but if they do shift it will tend to tighten the drawbar up. Andy |
| Rikk:
--- Quote from: andyf on February 10, 2011, 06:59:22 PM ---Not so tight that you break the wrench :) The trouble with overtightening a Morse taper is that you end up banging harder than you want to on the end of the drawbar to get the thing out. --- End quote --- Hehe ;p I had been showing my friend how to use it as he wanted something done and I can't stand up to long at the moment as I've just had my ankle replaced. I'd shown him to loosen it till it bites again then a quick wack to free it up but he forgot the wack, oh well :) So a knob it is then, I'm not even going to knurl it so it stops me tightening to far. This is the kind of silly thing having someone to show you and ask questions of would avoid, I've spent an awful lot of time reading forums, asking questions and sucking n seeing but you still get some plain simple things wrong.....well I do ;) So on that note, if there's anyone essex/london way who fancies a cup of tea and a chat let me know :beer: Thanks for the help guys. |
| Navigation |
| Message Index |
| Next page |
| Previous page |