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Member postings for Rod Ashton

Here is a list of all the postings Rod Ashton has made in our forums. Click on a thread name to jump to the thread.

Thread: For discussing the merits of alternative 3D CAD programs.
29/10/2018 15:03:42

Bazyle - Here is FreeCAM video also if you want to machine.**LINK**

29/10/2018 13:13:01

Bazyle - **LINK**

Thread: EMCO 150mm Rotary table with Stepper motor indexing
29/10/2018 13:00:24

Joseph - Could you be persuaded to share the details of your pre-load pulley/spindle adaptor please.

29/10/2018 07:51:14

Had the identical 150 Emco. Plus a stepper, driver, and Arduino Uno under the bench for ages. Waiting for its project opportunity.

Thank you for the inspiration. Go and hook it all out now.

Thread: Learning CAD with Alibre Atom3D
28/10/2018 16:25:11

Oh well I have only been at it for forty years. (Acad 78 I think) Bound to get the hang of it soon!!

28/10/2018 15:52:09

Well I just redrew it to send you a screenshot and the trim function worked as I would expect. Must have drawn it in a more acceptable way. It was the first time I had used the programme. Apologies for wasting your time.

Still playing

28/10/2018 14:47:29

Jason - I actually tried it both ways.( Incidentally the selection sequence is worth a observing)

So if left with a circle and the two tangential lines to trim, I would usually accept a highlighted cutout suggestion, or select my cutting entities and then the portion to remove.

Could not find a way to do it. At least by my accustomed methods?

28/10/2018 14:04:14

Trying the demo version. Quite neat.

Confused a little by the "trim" command. Drew a circle with two angled tangent lines attached. Then tried to trim out the inner unwanted portion of the circle from the line tangents. But it would only select and delete the whole circle. What is the procedure please.

Hope I am not premature with queries?

Thread: For discussing the merits of alternative 3D CAD programs.
28/10/2018 11:24:25

For the cylinder fins :-

If you do not have a 4th axis and could be bothered to make a form cutter? You could helically mill it in the vertical plane. Several basic cam programmes have this facility. i.e. Estlcam.

27/10/2018 14:03:28

Muzzer - Further to your post. Take a look at FreeCAD. Lots of tube videos and the omissions above are mostly present and of course it is free.

**LINK**

Edited By Neil Wyatt on 27/10/2018 15:53:14

Thread: Mikron F75
25/10/2018 10:56:35

Bill - If this is the belt driven horizontal head. I tried for a long time to figure it out. In the end I converted it to something else. Not too helpful I know!!

Thread: Sussex Steam Co. can't contact them, no answer for weeks!
24/10/2018 16:11:31

Over to you Dave.

24/10/2018 15:08:13

Will give Fabiano the opportunity to reply and then it is available to you Dave if you would like it.

24/10/2018 14:14:09

Fabiano - I have one of their Beam engine kits, unused. If that should be what you are looking at? It has the pre-soldered boiler also. For sale at half price if you would like it

Edited By Rod Ashton on 24/10/2018 14:19:29

Thread: Sieg/Arc X3 CNC conversion
20/10/2018 12:41:07

Well I have fixed it. Thank you gentlemen. There are two small 5mm screws that "secure" the X axis bearing block to the Y axis carriage. These were "like something in an old fashioned piece of headwear".

As the Y axis screw was covering them, the screw needs to be wound back to the Y axis block after removing the stepper, the two aluminium keeper blocks and unscrewing the coupling shell. The two bearings are pulled off and the Y screw can then be rotated back to expose the 5mm screw positions. It is required to pull the loose table assembly forward about another 2", to clear completely.

Fully degreased the screws and the sockets before fitting star washers and copious thread lock.

Hard to believe that the integrity of my machine relied on two 5mm screws and no washers?

I am a bit protracted here for the sake of any other owners. - If you have exposed spindle steppers, clamp something on there and rock the shaft while checking underneath at these two screws above the Y axis ballscrew.

20/10/2018 09:10:32

I have an older Sieg/Arc X3 CNC mill conversion. In fact one of the first I believe. It has developed some backlash in the X axis. It appears to be in the ballnut area or the ballnut housing. There is no backlash in the connector between screw and stepper. - I seem to remember that something here is prone to coming loose. But have checked everything I can see short of dismantling. If any of you guys can shed any light on the problem. I would be extremely grateful for your advice,

Thread: Eccentric pump clack?
14/10/2018 14:56:05

Setting up a horizontal mill engine that is fitted with an eccentric water pump. There appears never to have been a clack valve fitted to the delivery side piping. Will it need one? "Not much used to statics engines!"

Any advice appreciated.

Thread: Drill grinder mods
10/10/2018 15:29:17

Is there any more detail or any drawings of Graham Meeks interesting modifications to the Picador type, swing drill grinder please?

Thread: G-Code editor with back plotting
03/10/2018 06:08:07

Tried Camotics out of interest. Could anyone advise why nothing appears in the simulation screen even though my code is running and the code is viewable on the code screen?

Thread: A Big Treat coming for Readers of MEW
02/10/2018 14:55:41

What provision will there be for CAM since it is a requirement of full usability. I see that AlibreCAM 2018 is just short of £500 plus the initial £200 odd for Atom. Just to put some perspective on it.

Still a reasonable price all up. But to my parsimonious mind it might be more interesting if an integrated package had "a bit of deal" attached.

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