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Recent content by mr-mechanical

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  1. M

    Build a mini caterham

    Its been a while since my last update - got a bit distracted during lockdown with other projects - including the rewiring of a denford CNC micro mill. This weekend I made some more progress on the Mini Caterham project and made the rear wheel hub bearing carriers. The parts were made using the...
  2. M

    Starting with the Boll Aero 18

    Yea if it rotated in the collet the the setup would be ruined. The collet had a good hold and I took very light passes. It wasn't possible for me to put it directly in the 4 jaw Chuck as the small diameter of the shaft combined with the offset ment on of the jaws wanted to pass the centre of...
  3. M

    Starting with the Boll Aero 18

    Back at work yesterday after being ferloughed for 3 months but managed to find the energy to turn the crank from a grade 8.8 bolt as one part as suggested.
  4. M

    Alignment of cylinders and crank bearings

    Thanks for all you comments, I think I know how to approach it now.
  5. M

    Build a mini caterham

    Thanks Jeff, I've sent you a message
  6. M

    Build a mini caterham

    Thanks I'll have a look
  7. M

    Build a mini caterham

    Yea that's a centrifugal clutch. I plan to make a single speed gearbox initially but in the future I may look to add more speeds.
  8. M

    Build a mini caterham

    Great idea, I'll have a look at what sizes are available and if it work with what I have. 👍
  9. M

    Alignment of cylinders and crank bearings

    Hi all I plan to start making a straight 4 cylinder engine in the near future. My first one. Like lots of you probably do, I spend lots of time thinking about the setup for each part Recently I've been thinking about the setup(s) required for machining the block and how to properly align the...
  10. M

    Build a mini caterham

    So over the last couple of weeks I've made the steering rack for my mini caterham project and got it fitted. Good to see some moving parts I've also have a nose cone 3D printing so I can work out what space I have for the radiator which I've bought. (PC radiator) I've also bought a module 1 -...
  11. M

    Starting with the Boll Aero 18

    Some very interesting reading. Thanks for posting. Once I get to the piston and cylinder I will be reading all this carefully. Some more progress made yesterday with the main / crank bearing made
  12. M

    Starting with the Boll Aero 18

    Thanks for the tips. I'll have a look into turning the crank as one part. How do you approach turning a crank? At the moment I think I would do it between two centres
  13. M

    Starting with the Boll Aero 18

    Last week I started on the crank case cap. However after a few minutes of frustration with my lathe I decided to take the cross slide apart and open up the diameter of and replace the gib screws. The hex in the original ones were rounded and which ment I couldn't adjust them anymore. However...
  14. M

    Build a mini caterham

    Thanks, yes that's great!
  15. M

    Build a mini caterham

    Cool. I don't suppose you would have any contacts that could help me get hold of a cad model on the body work that I could scale to my chassis would you? I'm planning on 3d printing molds and making carbon fiber panels
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