Here is a list of all the postings Emgee has made in our forums. Click on a thread name to jump to the thread.
|Thread: What Did You Do Today 2019|
Nice looking rolls, should do some good work.
|Thread: Historic Frogs|
Very low volume compared with a Peterborough Brick Co.
|Thread: Mill X axis|
Stepper + driver + Arduino (or other controller) should do what you want, if driving always in the same direction when putting dimensioned cuts on backlash won't be an issue.
Ballscrews are very reasonably priced now, as long as you can obtain one with a small enough ballnut then it may be possible to do a conversion.
|Thread: Stepper rating for Triac upgrade?|
Hi Mark, compare them with the size/power output of the originals, allow a little over that for the retrofit.
|Thread: Beginners question (sorry) - why I am breaking my small centre drills?|
Any kind of pip after facing will push a small centre drill off centre and snap the pilot.
|Thread: HSS or CS taps and dies|
For Metric threads tapping drill size deduct the pitch from the diameter, so for M6 x1 tapping drill is 5mm so perhaps the sizes you mention are for fine pitch threads.
Check this video at 5 mins in to see what Andrew describes re swarf coming out as one ribbon per flute.
|Thread: indexible internal thread cutting tool|
Ian, be aware that you need the designated thread size for each insert as the crest form varies from the small to larger sizes, best to just buy the sizes as needed and you soon build up a number of common sizes, same info goes for different TPI inserts.
Looking at other inserts on the site I didn't see any part or full form tips, no doubt the insert you are using is a std 60 deg angle without crest forming, hence the sharp crests to the thread cut.
Edited By Emgee on 19/05/2019 22:20:39
|Thread: Electrics for a battery locomotive|
Tim, as Dave says the device advised will protect the controller but the motor current details are needed to perhaps provide sizing of fuse for each each motor to give protection from overloads.
|Thread: What Did You Do Today 2019|
Finished off making a few small parts, as an idea of size the threaded stud is M5 and M8, threaded holes are M3.
The studs are 316 stainless, the linkages are HE15.
|Thread: Drilling cast iron - where did I go wrong?|
Try reducing the spindle speed considerably and feed rate accordingly.
|Thread: EMCO Compact 5|
If you are able to lift the saddle from the bed you may need to fit some new gib plates, or just remove and refit the existing ones by turning over end to end to use the unworn surface.
Did you get the chuck key ? if not a Jacobs K3 will fit if you turn the spigot to fit the chuck, also you need to extend the length to give working clearance.
I guess you know the chuck jaws are reversible, the relation of chuck jaws is the numbered sheet on the lathe headstock.
Edited By Emgee on 11/05/2019 11:38:13
|Thread: Bore micrometer|
Adam, the bore micrometer or vernier are set on a known size gauge ring before use to confirm the reading, the bore mic should be adjusted if needed and the external bezel on the vernier can be rotatad and locked to suit the dimension.
|Thread: How to wire a 3 phase reversing switch for Colchester Bantam mk1|
Richard, on my Bantam the operating lever you refer to acts as Start/Stop, direction of rotation depends on if the lever is moved up or down.
|Thread: T nut slot channel|
Chris, I find it difficult to understand why anyone would object to the use of a product designed for the intended purpose.
|Thread: Anglepoise Lamps & CFL/LED lamps|
Peter, would be much easier to source some 60w GLS lamps.
|Thread: 6" EME rotary table|
Looks good but unusual for the operating handle to be positioned on the left, I don't recall seeing that before.
|Thread: A close shave or why safety glasses are a must|
Michael, lost the Arc ad from my screen several days ago, still wondering why.
Perhaps the Badger is blocking it, must check.
Edited By Emgee on 05/05/2019 10:34:26
|Thread: Parting tool|
John, always easy to damage inserts by moving onto stationary work, with normal use they shouldn't fracture.
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