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Author Topic: Hit n Miss Engine ,,,,to MR D Kerzel's design  (Read 116586 times)

Offline Bluechip

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #50 on: April 29, 2011, 09:29:39 AM »
Quote from: arnoldb on April 29, 2011, 05:13:03 AM
:clap: :clap: Good going Rob  :thumbup:

 :lol: Shop time's definitely better than watching the royal wedding!

:beer:, Arnold



Royal Wedding ?? What's that then Arnold ???

Not missed something have I??

Dave BC
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Offline arnoldb

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #51 on: April 29, 2011, 01:38:05 PM »
Quote
Royal Wedding ?? What's that then Arnold ???

Not missed something have I??

 :lol: :lol: Nowt much mate - seems to be a funny sort o' tradition in ol' Blighty with wooden coaches with shiny brass bits going down the streets and coppers hanging 'round everywhere...  Just a regular sort o' day from what I can gather  :D :D

 :beer:, Arnold
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Offline Bluechip

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #52 on: April 29, 2011, 03:21:43 PM »
Arnold

Horses? Carts? Bits of Brass? Copper ...... Aaaaaaaah! Gotcha ....  :thumbup:

Steptoe & Son ... yeah, pity it's not on now .. bugger. Did miss it then ...  :(


Dave BC
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Offline Brass_Machine

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #53 on: April 29, 2011, 03:32:34 PM »
Looking nice Rob!!  :thumbup:

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Offline saw

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #54 on: April 29, 2011, 04:15:16 PM »
Nice work Rob. :thumbup: :thumbup:
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lordedmond

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #55 on: April 30, 2011, 04:15:46 AM »
Kenneth

It a wobbler ( sprung loaded center ) held by the TS  and the dial gauge is used to check the run out )

Basically its a centre finding device to set thing running true


But  I bet Rob can explain it better
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Rob.Wilson

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #56 on: April 30, 2011, 04:29:57 AM »
Hi Ken

I can see how the photo is misleading  :doh:  ,,,,,,,,,,,,,, i had done a video to show  it in operation to   :(  ,,,5 minutes until upload complete .


Rob
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Rob.Wilson

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #57 on: April 30, 2011, 04:40:00 AM »
Quote from: craynerd on April 28, 2011, 08:22:47 PM

Just curious, what determines whether you choose to use your horizontal setup or a standard vertical? - I know there is always more than one way "to skin a cat", but just curious how you personally decide.

Chris

Hi Chris ,,,,,,,,,,,, i mainly just use the HZ for profile cutters , gear cutting and deep slots   :dremel: :)


Rob
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Rob.Wilson

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #58 on: April 30, 2011, 04:55:50 AM »
I am just as crap with video as i am with photos  ::)  ,,,,, but you get the idea  :dremel:




Rob
« Last Edit: April 30, 2011, 04:59:29 AM by Rob.Wilson »
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Offline saw

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #59 on: April 30, 2011, 05:10:04 AM »
This was wery intressting thanks for showing Rob.
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Offline slowcoach

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #60 on: April 30, 2011, 07:03:54 AM »
Wow, engines coming on fast Rob W :bugeye: Liked the video, did you make the wobbler yourself?

Here's a link for anybody who fancy's making one, its listed under Lathe related stuff  http://members.optushome.com.au/terrybrown/welcome.html there is some other good stuff on the website too.

Cheers
Rob  (slowcoach) :thumbup:
 
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Rob.Wilson

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #61 on: May 01, 2011, 04:07:11 AM »
 Cheers Benni ,,,,,,,,,,,,,, pleased you liked the video  :dremel:

Hi Ken ,,, i may just do that ,,,,,,,,, i will have a bit more practice with the camera first see if i can make a better job of it  :doh: and fined a voice over  :lol: :lol: :lol:


Hi Rob ,,,,,,,,,,,,,Yep made it yonks ago when i was a lad ,,,,, :dremel:



Rob




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Rob.Wilson

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #62 on: May 01, 2011, 05:30:11 PM »
A bit more progress  :dremel:

The main bearing caps ,, a bit of ally bar was milled up to the required width and thickness ,but longer than needed and a centre point marked on each end for the radius .

Then the ends were milled to form the flat section.

The bar was mounted on the R/T and clocked into the pre marked points ,,, same as  method as with the 4 jaw ,just vertical ,centre fitted to mill spindle and R/T clocked into spindle .
the rad was milled on each end .

The bar was held vertical in a tool makers vice , then held in the mill vice .



Fined the centre

then the edge


Working from there move in the correct distance for the first hole , and using a slot drill , mill a flat .

centre drill

and drill


move to the other hole using the dials to get the position and repeat  .


do same to other end of the bar ,, then cut the caps off the stock leaving some to machine up .


Then mill to size.





Now the main bearing supports need milling up ,, i tilted the bed of the mill to do this , but you could just mount it in the vice at the correct angle .



Then the holes were drilled and taped for the cap screws wile still in this position ,,, after finding the centre line and working from this point .



Thats all for now lads



Rob




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Offline Bogstandard

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #63 on: May 01, 2011, 05:52:19 PM »
You are definitely making it look too easy Rob.

Next thing you know there will be dozens of these being made. So when you cut the gears, make up some long bar lengths, and cut up extra sets for selling on to keep everyone happy.

Very nice setups and explanations BTW.


John
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Offline doubleboost

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #64 on: May 01, 2011, 06:12:23 PM »
Coming on nicely Rob
Total class as usuall :thumbup: :thumbup: :thumbup: :thumbup:
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Offline saw

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #65 on: May 01, 2011, 07:00:10 PM »
Nice work Rob, your'e the man  :clap: :clap: :clap:
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Offline Bernd

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #66 on: May 01, 2011, 07:41:45 PM »
Quote from: Bogstandard on May 01, 2011, 05:52:19 PM
You are definitely making it look too easy Rob.

John

I was going to say the same thing. Carry on.  :thumbup:

Bernd
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Offline sbwhart

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #67 on: May 02, 2011, 01:39:16 AM »
Top class work Rob
 
:thumbup:

Stew
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Offline Stilldrillin

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #68 on: May 02, 2011, 02:14:42 AM »
Rob.
Very nice work..... Very nicely explained!  :clap: :thumbup:

David D
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Still drilling holes... Sometimes, in the right place!

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Offline NickG

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #69 on: May 02, 2011, 03:45:17 AM »
Brilliant work, it does look rather easy to make this engine though Rob, it's a doddle - you should have picked something more challenging  :poke:  :lol:
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Rob.Wilson

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #70 on: May 05, 2011, 04:53:04 PM »
Cheers LADS  :thumbup:


Moving along ,, next up the main bearing brackets need boring ,, a small angle plate was clocked on the mill

And the base fixed to it

Then drilled and bored


next up using the mill dials ,, the position of the hole for the timing gear shaft was located , drilled and reamed 1/4" ,, i am deviating from the drawings a bit here .




Cheers Rob
 
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Offline saw

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #71 on: May 05, 2011, 04:57:18 PM »
Rob it is a work of art  :clap: :clap: :clap:
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Rob.Wilson

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #72 on: May 05, 2011, 05:25:34 PM »
Cheers Benni  :D


Next the crank ,,,,,,,,,

Several hours later my saw had cut through the lump of steel  ::)



the centres were marked out on each end and drilled

next a slot was milled to remove most of the material to form the big end
 

This was then turned between centres , starting with a stiff slotting tool to remove most of the material .


Then a thinner tool was used to turn the journal


With that done ,, i need a spacer to go between the crank webs ,, so the crank will not bend when the pressure from the tail stock is applied ,,, there are many ways of doing this ,,,this is my way , turn up a length of steel   to be a good fit between the webs , a slack fit is no good ,,,
 
If its too tight when a parallel is laid across ,,it will rock ,, so a bit more will need to be machined off .
 

Drill and tap one end and part off leaving a top hat ,position in line will main journals centres , hold in place with screw and washer




Rob
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Offline metalmad

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #73 on: May 05, 2011, 05:54:48 PM »
Ahhh my favourite post is back!! :bugeye:
what are u doing with the gear shaft rob?
are u using custom gear sizes?
I really like your way of making the web spacer, and u will see that, when it comes time for my rattler crank  :clap: :wave:
Pete
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Offline doubleboost

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Re: Hit n Miss Engine ,,,,to MR D Kerzel's design
« Reply #74 on: May 05, 2011, 06:00:45 PM »
I am lost for words :bow: :bow: :bow:
This is real quality stuff
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