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--- tecnica:motori:honda_3d_print_spare_parts [2024/11/28 22:20] – [Donate] niccolo
+++ tecnica:motori:honda_3d_print_spare_parts [2024/12/02 14:42] (current) – [16965MM5770 modified to fit a 5 mm pin] niccolo
@@ Line 1: / Line 1: @@
 ====== 3D-printng Honda motorcycle spare parts ======
+**Creating 3D models of discontinued parts**
 I own an **Honda NTV650 Revere**, year 1991, and I still use it regularly after 33 years and **254.000 km**. The bike has been kept in perfect working order for all these years thanks to the availability of original spare parts, a true Honda excellence.
@@ Line 23: / Line 25: @@
 ===== 16965MM5770 Lever Fuel Cock =====
-Honda does not produce the **fuel cock lever** (16965MM5770) any more, nor the **fuel petcock** (16950MS9005). If you need to replace the petcock you can find several non-original spare parts, but every item I found has di noticeable difference: the square pin where the lever is mounted is shorter than the original: 5 mm instead of the original **13 mm**:
+Honda does not produce the **fuel cock lever** (16965MM5770) any more, nor the **fuel petcock** (16950MS9005). If you need to replace the petcock you can find several non-original spare parts, but every item I found has a noticeable difference: the square pin where the lever is mounted is shorter than the original: 5 mm instead of the original **13 mm**:
+{{.:3dprint:ntv650-original-petcock-long-pin.jpg?direct&360|NTV 650 original petcock: 13 mm long pin}}
+{{.:3dprint:ntv650-non-original-petcock-short-pin.jpg?209|Non original petcock: 5 mm long pin}}
-{{.:3dprint:ntv650-original-petcock-long-pin.jpg?direct&400|NTV 650 original petcock, 13 mm long pin}}
+The original lever does not fit the non-original petcock, because it interferes with the metal body. So **I drew in CAD a modified lever**, which will stay in the correct position once mounted on a short-pin petcock. Here you can find two 3D projects: one is like the original part, the other does fit a 5 mm pin petcock.
-The original lever does not fit the non-original petcock.
+:!: **WARNING**: The original lever have a **metal inner core**; my project features a **7.0 mm inner hole**, so you have to fit a piece of metal tube in it, see the picture:
-So I drew in CAD a modified lever, which will stay in the correct position once mounted on a short-pin petcock. Here you can find two 3D projects: one is like the original part, the other does fit a 5 mm pin petcock.
+{{.:3dprint:16965mm5770-3d-printed.jpg?direct&240|}}
-:!: **WARNING**: The original lever have a **metal inner core**; my project features a **7.mm inner hole**, so you have to fit a piece of metal tube. The screw is 5 mm, so a tube with diameters **7.0 x 5.5 mm** (outer x inner) would be the optimal, if you can find it. I suggest to fix it using an **epossidic glue**.
+The screw is 5 mm, a tube with diameter **7.0 x 5.4 mm** (outer x inner) would be the optimal, if you can find it. I inserted the little tube just by pressing it; the 3D printed hole provides a bit of interference.
-==== 16965MM5770 Original ====
+==== 16965MM5770 original replacement ====
-In this photos the 3D printed lever with the **metal tube** (diameter 7 x 5 mm, **6 mm long**) and how it compares witht the original part:
+In this photos the 3D printed lever with the **metal tube** (**7.0 x 5.4 mm** diameter, **6.0 mm** long) and how it compares witht the original part:
-{{.:3dprint:16965mm5770-3d-printed.jpg?direct&302|}}
 {{.:3dprint:16965mm5770-original-3d-printed.jpg?direct&340|}}
@@ Line 47: / Line 51: @@
 Download the 3D file: **{{.:3dprint:honda-16965mm5770-lever-fuel-cock_0.2.zip|Honda 16965MM5770 STL}}**.
-==== 16965MM5770 Modified to fit the 5 mm pin ====
+==== 16965MM5770 modified to fit a 5 mm pin ====
-This is a slightly modified project, designed to fit petcocks with a **5 mm long pin**. Generally these non original petcocks have the pin smaller: a square section of **7.60 x 7.60 mm** instead of 7.90 x 7.90 mm.
+This is a slightly modified project, designed to fit petcocks with a **5 mm long pin**. Here you will need a metal tube (**7.0 x 5.4 mm** diameter, **13.0 mm** long). Generally these non original petcocks have the pin smaller: a square section of **7.60 x 7.60 mm** instead of 7.90 x 7.90 mm.
 {{.:3dprint:16965mm5770-short-pin-2.png?direct&200|}}
@@ Line 56: / Line 60: @@
 ===== 90302MS9000 Cap L. Pivot =====
-This is the cap covering the swing arm pivot of the Honda NTV 600 and NTV 650 models.
+This is the cap covering the swing arm pivot of the Honda NTV 600 and NTV 650 models:
 {{.:3dprint:90302ms9000-1.png?direct&200|}}