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Member postings for Emgee

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: EMCO Compact 5
16/05/2022 00:35:46

Stan

The Compact 5 cnc has an on-board computer which allows programs to be compiled within the the machine, no computer is required.

In it's standard form the 5PC is for operating from an external computer running an Emco DOS program.

Which is it ?

Emgee

emco basic.jpg

 

Edited By Emgee on 16/05/2022 00:45:19

16/05/2022 00:28:53

From the Manual

Emgee

emco 2.8 screen display.jpg

Edited By Emgee on 16/05/2022 00:30:53

16/05/2022 00:12:12

Stan

Which lathe is it, Emco Compact 5 CNC or Emco PC lathe ?

Emgee

15/05/2022 21:01:09

Stan

Looks like they are the DOS programming shortcut codes, the original Emco 2.8 program was DOS based.

The dimensions and other info in the TOOL column are Tool offsets and spindle speed for the tool..
The arrow indications show the direction of tool travel by using - (minus sign) and +
so - on the X axis puts a cut on, - on the Z axis moves the tool towards the chuck.

Hope this helps.

Emgee

Thread: Cheap stuff
14/05/2022 22:21:09

In the early 1980's I bought a Taiwanese made Alpine drill from Graham Engineering in Birningham, MT2 spindle with rack feed rise and fall and rotatating table. When bought it was fitted with a good quality drill chuck which I still use on a Bantam lathe. The drill spindle is still good with no play and still using the same belts !!!!!

Emgee

alpine drill.jpg

Thread: Drill bit storage
12/05/2022 22:01:35

Colin

Plenty of dimensions here, Little Machine Shop.

**LINK**

Emgee

Thread: Boxford AUD/BUD single phase conversion
10/05/2022 19:39:24
Posted by Nealeb on 10/05/2022 19:15:42:

As regards keeping the machine 3-phase compatible - that is probably trivial. Most VFDs accept single-phase but have input connections for 3-phase input. Take out the single-phase mains lead, wire in the 3-phase cable, and you retain all the VFD, pendant, etc, capability.

3 phase input VFD would suggest a 380-415v AC supply so not suitable for a unit designed for 230v AC single phase supply.

Emgee

Thread: A tyro desoldering question.
09/05/2022 14:24:54
Posted by Martin Kyte on 09/05/2022 14:00:20:

I do beg your pardon. You probably want DP3T

regards Martin

Like this one.

**LINK**

Emgee

Thread: Total cost + import for Tormach PCNC 440, and alternatives?
08/05/2022 20:59:29
Posted by Steve Dunthorne 1 on 08/05/2022 14:58:34:

But it is clear this book is not aimed at seasoned and disgruntled old men, who know all there is to know about milling, and wish to keep it a closed shop. No, absolutely it is not. In fact, anyone who knows about it can CHOOSE not to buy it if they wish. That’s the beauty of choice. I find it hard to fully appreciate how my four lines of text, (no spelling mistakes, no swear words, no grammatical errors even, and the possibility this book might be of use in bringing more talent into our hobby), can have caused any offence whatsoever.

The first sentence in the above statement is far from the truth and will earn you no respect.

Emgee

Thread: A tyro desoldering question.
08/05/2022 09:56:26

I believe the smart option is to get a replacement switch and connect by soldering flexible wire tails (6) to the original switch pins where they exit the component side of the board.
If the PCB is a close fit in the box there is sufficient clear area on the board where a hole can be drilled for the wires to pass through.
If the original switch is still accessable you will have to fix it in the OFF position or make a cover.

Emgee

Thread: Total cost + import for Tormach PCNC 440, and alternatives?
07/05/2022 22:45:49
Posted by Steve Dunthorne 1 on 07/05/2022 21:54:45:

In the end, I plumped for a Tormach machine which I have had for just over a year now, and ended up writing about the whole experience. Just Google my name the the words book and Tormach and you should be able to see. It really is a lovely machine and I highly recommend it to anyone thinking of starting out in cnc like I was.

I would have thought with all the help you received by members in this forum you could have posted a few details of your experience with the Tormach machine here.

I am interested to know but not so much as to pay your book listed price as I have no intention of ever buying a Tormach machine.

Emgee

Thread: New To CAD? No, but....
05/05/2022 23:54:41

Hi Nigel

Sounds like you need to trial Fusion 360, plenty of How To videos on the Fusion site, also many excellent tutorial videos on Youtube from several really excellent tutors.

Getting the design modelled can save many headaches when it comes to machining the part + you can simulate machining by making a CAM file from the model.

Emgee

 

Edited By Emgee on 05/05/2022 23:55:17

Thread: help wiring a 3 ph coolant motor
05/05/2022 22:10:06

The rough sound you describe could be 1 winding with the ends reversed.

Emgee

Thread: METAL DUST & VFDs
04/05/2022 09:33:15
Posted by SillyOldDuffer on 04/05/2022 09:14:14:
Posted by Emgee on 03/05/2022 22:38:04:

Posted by mgnbuk on 03/05/2022 20:40:48:

...

I work for a graphite machining company & the talcum powder fine stuff defies all attempts to totally keep it out of enclosures despite my best efforts - and that is IP66 industrial enclosures.

Nigel B.

Sounds like the enclosure is not up to the specification, ...

Emgee

I suspect they might be - in the test, IP66 is only dust proof for 2 to 8 hours and not waterproof. Next level up (IP67) is only rated water immersion proof for 15 minutes.

Dave

Dave
Not what's stated for the 2nd digit in IP66, Water projected in powerful jets (12.5mm nozzle) against the enclosure from any direction shall have no harmful effects.

I think Nigel needs to suggest some better extraction on machines in the factory which takes the topic back to Noel's question.

Emgee

03/05/2022 22:38:04
Posted by mgnbuk on 03/05/2022 20:40:48:

I believe the size of the particle is the deciding factor when conducting a test for ingress of dust, it matters not whether the particle is conductive or not.

From an "expensive bang" POV it matters quite a lot !

I work for a graphite machining company & the talcum powder fine stuff defies all attempts to totally keep it out of enclosures despite my best efforts - and that is IP66 industrial enclosures.

Nigel B.

Sounds like the enclosure is not up to the specification, or the cable terminations don't have the same spec.
Perhaps in place of talcum powder the test house should be using graphite dust.
Your experience shows it is the particle size that's used in the test that matters, not whether it is conductive or not.

Emgee

03/05/2022 19:45:09
Posted by Robert Atkinson 2 on 03/05/2022 16:25:46:

The IP 5x test uses nonconductive dust (talcum powder) so is not adequte to protect electrical equipmnt against conductive dust.

Yes you can get fully protected VFDs, at a cost. Most model engineers on here seem to use the cheap far eastern VFDs. On many of those wven the basic IP20 is dubious

Robert G8RPI.

Hobert

I believe the size of the particle is the deciding factor when conducting a test for ingress of dust, it matters not whether the particle is conductive or not.

How many of the cheap far eastern VFD's have you examined and tested to arrive at your conclusion of dubious ?

Emgee

02/05/2022 14:56:39
Posted by martin haysom on 02/05/2022 13:54:34:
Posted by Mark Rand on 02/05/2022 12:28:18:

Ideal solution is a bloody great dust extractor on the linisher. laugh

would keep it out of your lungs too

Dust extraction is definitely the best solution.

Emgee

Thread: Band saw arm weight
28/04/2022 13:33:47
Posted by andrew lyner on 28/04/2022 11:48:52:

On the subject of lubrication, cutting aliuminium seems to be faster without lube because the swarf seems to clear better without clogging. Maybe the life of the saw is comprominsed if I stop lubing.

Perhaps the number of teeth per inch on the blade you are using is too high when cutting aluminium rod/bar to allow the swarf to clear.
I use 8/10 tpi on a horizontal band saw but that is still on the high side for thick sections.

Emgee

typo edited

Edited By Emgee on 28/04/2022 13:34:27

Edited By Emgee on 28/04/2022 13:36:01

Thread: Looking for a non-magnetic, strong, easily glued material
27/04/2022 22:45:48
Posted by Donald MacDonald 1 on 27/04/2022 22:16:44:

I don't know anything about "epoxy glass". Is it a sheet of epoxy resin with "fibre glass" embedded in it?
If so I think it might be too brittle and/or not very good at resisting abrasion.

Don

I should have stated laminated glass cloth and epoxy resin, also available with polyester resin material.

Emgee

27/04/2022 21:55:45

Carbon fibre laminate may work for you, epoxy glass would be another choice except for colour.

Emgee

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