- Mar 23, 2008
So, the longer bits didn't give you enough room - even with the extender?
I'm using the standard 5410 with the 12" Column. The optional 15" Extended Column probably would have worked. I think the Extended Column is the setup that JohnP has and he says it has worked well for him with Hermle and Urgos Tall Case movements.Asking Bruce.
Ah...sorry about that. I was wrong (I've edited the comment to remove any future confusion). I have the 12" column as mentioned here: BUSHING WITH A SHERLINE MILLA little confusing, I thought the above quote meant that you also have the extended column.
TeaclocksDo you only Grind on One side ??
One side or three sides ?
Or two ?
Right. Nibbling is not necessary. The Mill setup doesn't flex. It drills, reams, mills on whatever center you set up. Certainly when working with Brass Plates that are just a few millimeters thick.nibbling is not necessary
Not sure what the lowest RPM setting is but to answer your question, No. The Mill can be run a lot slower than most Drill Presses. You can dial in very low speeds but you lose torque so there's a practical limit. I just go as slow as I can while still having enough torque to cut through the plate. The lower the speed, the lower the impact of any run out in your set up.is this speed not too fast when using the KWM reamer?
I use both a 3/8" drill chuck as well as collets. Just depends on the situation and how small the pivots are. If the pivots are less than about 1mm, I'll bush with collets. In all cases I prefer to use pin gauges to locate center.Is it best to use a collet to hold the KWM reamer for accuracy?
Greater than you could imagine including the price.The Sherline 5400 comes with a 1/4" drill chuck. I am switching to the mill from my bushing machine for doing bushing work. I like the idea of using a drill chuck as I can put my pins in there and the tools to bush without changing collets. My impression from comments on the board is that the drill chuck is adequate for bushing accuracy, with perhaps exceptions for very small pins. If true, great! Would one gain a noticeable precision using a precision drill chuck such as ones made by Albrecht?
I would suggest when purchasing a 1/4" and larger Albrecht chuck, that you purchase the chuck with 3/8 x 24 threaded mounting and use Sherlines MT-1 threaded mounting arbor that incorporates the draw bar.The 5400 mill comes with [ ¼” Drill Chuck w/ key, #1 Morse arbor with draw bolt], if I am looking for an upgrade, such as to one made by Albrecht, would I search for one that has a #1 Morse arbor with draw bolt? I saw a listing of many types and arrangements, for Albrecht chucks, and I just want to make sure I get one compatible with the 5400 mill. Disclaimer: I am machinist illiterate and any help I get is much appreciated! Thanks!