Philjoe5
Well-Known Member
- Joined
- Jul 12, 2007
- Messages
- 1,727
- Reaction score
- 321
[FONT="]Hi folks,[/FONT]
[FONT="]I was tempted to title this post A yanks Bonzer but settled on what you see.[/FONT]
[FONT="]Im going to build my first IC engine. After much deliberation I decided on building the Bonzer IC engine featured by our very own AussieJim. The Bonzer is his version of the Bonza IC engine. The bonza is an engine designed by John Williams which appeared in several issues of Australian Model Engineering magazine starting in September 2009.[/FONT]
[FONT="]AussieJim kindly provided myself and others with a set of nicely done plans at no cost.[/FONT]
[FONT="]Ill post my progress of this build in the Works in Progress section but I warn you if you are not entertained by watching paint dry you should not tune in because this is going to be a long build. I decided to post my progress here (with a nudge from AussieJim) in the interest that it may benefit others who have begun or plan to begin building this fine engine.[/FONT]
[FONT="]This project has machining techniques that are new to me. These are:[/FONT]
[FONT="]Making Gears[/FONT]
[FONT="]Making piston rings[/FONT]
[FONT="]Making valves with seats [/FONT]
[FONT="]So in no particular order and subject to my geriatric whim I decided to tackle the gear thing first. [/FONT]
[FONT="]Several posters on HMEM have given great advice as to where to buy reasonably priced cutter sets for module 1 or Diammetrical Pitch 25.4 gears and how to proceed and I thank you all for your help. I wont go into a lot of detail but I spent 5 weeks to learn how to make a decent set of gears. I made lots of gears that are serviceable but only the last 5 or 6 came out with good, consistent tooth profiles. Note, Im planning other small projects using gears so while I had my machines set up I made gears for those projects.[/FONT]
[FONT="]A photo of a steel and bronze set of 30T and 60T gears is shown here:[/FONT]
[FONT="] [/FONT]
[FONT="]The most consistent gears were made using a friends dividing head and I would recommend, if you can borrow one, to use it. Results using a 4 rotary table with a 3 chuck were OK but it was difficult to get consistent gear teeth on my equipment.[/FONT]
[FONT="] [/FONT]
[FONT="]OK, now for some less mentally taxing work Im going to work on the frame parts and will report back when theyre completed.[/FONT]
[FONT="]Cheers,[/FONT]
[FONT="]Phil[/FONT]
[FONT="]I was tempted to title this post A yanks Bonzer but settled on what you see.[/FONT]
[FONT="]Im going to build my first IC engine. After much deliberation I decided on building the Bonzer IC engine featured by our very own AussieJim. The Bonzer is his version of the Bonza IC engine. The bonza is an engine designed by John Williams which appeared in several issues of Australian Model Engineering magazine starting in September 2009.[/FONT]
[FONT="]AussieJim kindly provided myself and others with a set of nicely done plans at no cost.[/FONT]
[FONT="]Ill post my progress of this build in the Works in Progress section but I warn you if you are not entertained by watching paint dry you should not tune in because this is going to be a long build. I decided to post my progress here (with a nudge from AussieJim) in the interest that it may benefit others who have begun or plan to begin building this fine engine.[/FONT]
[FONT="]This project has machining techniques that are new to me. These are:[/FONT]
[FONT="]Making Gears[/FONT]
[FONT="]Making piston rings[/FONT]
[FONT="]Making valves with seats [/FONT]
[FONT="]So in no particular order and subject to my geriatric whim I decided to tackle the gear thing first. [/FONT]
[FONT="]Several posters on HMEM have given great advice as to where to buy reasonably priced cutter sets for module 1 or Diammetrical Pitch 25.4 gears and how to proceed and I thank you all for your help. I wont go into a lot of detail but I spent 5 weeks to learn how to make a decent set of gears. I made lots of gears that are serviceable but only the last 5 or 6 came out with good, consistent tooth profiles. Note, Im planning other small projects using gears so while I had my machines set up I made gears for those projects.[/FONT]
[FONT="]A photo of a steel and bronze set of 30T and 60T gears is shown here:[/FONT]
[FONT="] [/FONT]
[FONT="]The most consistent gears were made using a friends dividing head and I would recommend, if you can borrow one, to use it. Results using a 4 rotary table with a 3 chuck were OK but it was difficult to get consistent gear teeth on my equipment.[/FONT]
[FONT="] [/FONT]
[FONT="]OK, now for some less mentally taxing work Im going to work on the frame parts and will report back when theyre completed.[/FONT]
[FONT="]Cheers,[/FONT]
[FONT="]Phil[/FONT]