Rotational Wobble

[Jesse Hancock 1Participant @jessehancock1]

Thanks for the information Les.

The cast – in holes are 20mm 3/4" approximately. Your boring bar looks very sturdy.

I have reset the gib bar screws ( they hardly moved if at all) and I will clamp the table down somehow. Give it a twirl and see what happens. Suck it and see as my old man used to say.

Off to look at your link cheers Les.

Jesse

 

Edited By Jesse Hancock 1 on 23/02/2015 13:38:55

Edited By Jesse Hancock 1 on 23/02/2015 13:39:23

[Jesse Hancock 1Participant @jessehancock1]

Gentlemen, had a day experimenting with the boring bars.

I have to report that :

1. The RPM of the tool can be slowed substantially without much difference to the cut. (at least on ally) The wobble is much less but not entireIy eliminated. Evening the load (balancing the head) also helps a little.

2. The advance of the cutting edge needs to be just a couple of degrees but it's difficult to accurately assess. I will perhaps try to ascertain what the best angle is just for reference.

3. An obvious one really but advance the cutting edge too far and the shank will rub having lost the greater diameter achieved with the blade at or closer to 90 degrees.

Edited By Jesse Hancock 1 on 24/02/2015 15:27:59

Edited By Jesse Hancock 1 on 24/02/2015 15:44:56

[Les Jones 1Participant @lesjones1]

Hi Jesse,
I think we are back needing to see a picture of your boring tool before people can make any suggestions.

Les.

[JasonBModerator @jasonb]

Is this what you have?

If so then by "advance the cutter" I think you mean rotate it in teh holder to give more positive rake in which case asyou say if rotated too far the back edge will rub unless you crind the backs away as I have done on most of mine.

You don't need a lot of positive rake only a couple of degrees will do.

[Jesse Hancock 1Participant @jessehancock1]

Hi Les, I had a quick look at the rigmarole needed to put photo's on the site and I must say I'm none too impressed. May give it a go tomorrow if I can find a lead for the phone to down load with. I only have a charger with this phone. It's long since I had one my towers set up but they do have loads of attachments with them.

[Jesse Hancock 1Participant @jessehancock1]

That's it Jason only smaller to suite the scale of the mill.

The engine block moulding also differs on the second level RE: you drawing Jason. It's thicker and not even all around as far as can tell. (possibly worn patterns?) I doubt whether it will have any influence though.

Edited By Jesse Hancock 1 on 24/02/2015 16:05:59

Edited By Jesse Hancock 1 on 24/02/2015 16:08:42

[Harry WilkesParticipant @harrywilkes58467]

Jesse

This is what I use for a rev counter, you just need a power supply I use an old phone charger, plenty of choices on ebay link

H

Posted by Jesse Hancock 1 on 22/02/2015 19:16:03:

Jason, yes it should read 120SFM but what I actually got I don't know since I had to guess using speed dial knob. My appologies.

The boring bars came with the head and fit into holes ready made. Bars are .233 inches 5.93mm (82mm Maximum length)

I was looking for rev counter today as it happens and that after reading the thread on cycle rev counter devices.

So much to do and so little time to do it.

Jesse

Edited By Jesse Hancock 1 on 22/02/2015 19:51:59

[Jesse Hancock 1Participant @jessehancock1]

Thank you Harry I'll add it to the ever growing list. An old phone charger? Do you mean those attached to the wall and wound up with a handle? They have a couple of bells on top and a mobile ear piece. Just kidding.

Ebay wants me to sign up all the time and frankly I'm splattered all over the net as it is, so no deal on that. I will get one though. Incidentally do all you people submit to the wishes of Ebay?

[Harry WilkesParticipant @harrywilkes58467]

Hi Jesse sorry I did mean to say an old mobile phone charger, as for ebay I have a ebay account wouldnt be without it saves a lot of time going to the shops, and I think you can purchase off ebay by signing in as a guest . I do believe you can also get the goods from Amazon

H

[Jesse Hancock 1Participant @jessehancock1]

Harry RE: Charger: no need to apologise and please don't take any notice of my silly jibes and jokes it's just me and my warped sense of humour.

I quiet agree about Amazon and Ebay, but why do they want me to register and make a password just to buy someone else's goods when they have my Bank card details??? The reason has to be data mining. They sell on your details to advertisers who then bombard you with cookies or emails.

If for instance if I want a solid fuel/wood burning stove I'll go and buy one or more likely make one, and the same goes for any other item, the buying not the making,I don't want to spend all day clearing junk from my hard disc or indeed wondering why the computer is getting so slow.

As I have said in the past I run Ubuntu because it's free and imho it's just as good. However security being what it is you are advised to change your password every six months or so. I've been using Ubuntu for years now and due to other issues I have recopied the core programs many times so you can imagine the amount of different passwords. It's becoming a challenge to think up meaningful new passwords and remember them hence my reluctance to register with Ebay and others.

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