McOnies`s Oscillating Engine 3D CAD

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Studs long nad short and nut for the cylinder

View attachment Studs and nut for cylinder.zip

 

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Cylinder Top Cover Update Part 11
Just change of the size of the gland thread holse

View attachment Cylinder_Top_Cover_Part_11-1_Update_ipt_stp_x_t.zip

 

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Piston Part 13

View attachment Piston_Part_13_ipt_stp_x_t.zip

 

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Piston Rod Part 14

View attachment Piston_Rod_part_14_ipt_stp_x_t.zip

 

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Piston Rod Gland Part 15

View attachment Piston_Rod_Gland_Part_15_ipt_stp_x_t.zip

 

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Valve Rod Gland Part 16

View attachment Valve_Rod_Gland_Part_16_ipt_stp_x_t.zip

 

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Steamchest Top Cover Part 17

View attachment Steamchest_Top_Cover_Part_17_ipt_stp_x_t.zip

 

[johnmcc69]

Very nice models.
what drawings/plans are you working off of? Are you going to create the detail/dimensioned
drawings? Thats going to be allot of work.

John

 

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Check out the first post, there is a description of plans origin.
If you mean by detail/dimensioned drawings a some kind 2D drawings with line dimensions I do not plan to do this.
All 3D models are produced Scaled down so if you have some kind of 3D CAD software you can produce what ever 2D drawings you wish, different projections cut outs so on.

 

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M1.4x6 for mounting the valve gland

View attachment M1.4x6_ipt_stp_x_t.zip

 

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Assembly Test 8

View attachment Assembly Test 8_iam_stp_x_t.zip

 

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Slide Valve Part 18

View attachment Slide_Valve_Part_18_ipt_stp_x_t.zip

 

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Rocker Shaft Bearing Part 19

View attachment Rocker_Shaft_Bearing_Part_19_ipt_stp_x_t.zip

 

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Rocker Bearing Cap Part 20

View attachment Rocker_Bearing_Pedestal_Cap_Part_20_ipt_stp_x_t.zip

 

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Rocker Bearing Pedestal Part 21

View attachment Rocker_Bearing_Pedestal_Part_21_ipt_stp_x_t.zip

 

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Cylinder Bearing Stud for mounting Rocker bearing Cap to Pedestal

View attachment Cylinder_Bearing_Stud_ipt_stp_x_t.zip

 

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Ups! mistake Cylinder Bearing Stud is for mounting the pedestal to the cylinder

 

[Jasonb]

Nice drawings but one comment on your studs, it is usual to have a plain section in the middle and just thread the two ends like teh ones below. Also the older engines tended to have single chamfer nuts not the more modern double chamfer like you have shown.

 

[Brian Rupnow]

All 3D models are created at 1:1 scale. The drawings which are made from these models can be at whatever scale you set your software for, but the drawings will still show the full scale dimensions.

 

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Hi Jasonb, you are 100% correct regarding the studs. I will correct them at some point in the design. For now I will leave them as they are because I am using them from ready made library from the Autodesk Inventor, and is easy for me that way until I verify the design kinematically. Regarding single chamfer nuts you are also right, mine they are also lib parts. To be exactly correct engines from that period wold probably have square nuts regarding to my research. If you or any body else reading this have exact photos of the actual engine or any kind print please post, I will reproduce the exact parts.
Very nice bearing by the way.