Front Accessory Mount MK3
$1.70 Front Accessory Mount MK3
3D
Published 2020-09-08T21:00:18+00:00
An easy to print, oversize, robust and durable Front Accessory Mount designed to facilitate mounting accessories on a recumbent tricycle. It provides a convenient 26 mm octagonal tubular attachment/mounting point for other accessories on the trike, such as headlight, GPS, phone, etc... The accessory mount is designed to clamp onto the 28.6 mm front dérailleur column using M5 hardware.
The parts can be easily 3D printed, without any support, on a modern inexpensive 3D Printer. They can be printed with a variety of materials, including PLA, PETG, ABS, ASA and many other types of printable materials.
PETG or ASA work very well for this application. The objects should be durable, easy to maintain, and last for a long time.
The main difference with the MK2 version is that my front heavy headlight would slip downward, when riding on a rough road. The oversize 26 mm octagonal tube in this version provides a much firmer grip for the headlight attachment to hold onto.
Recommended print settings with a .4 mm nozzle
- Layer Hight: .2 mm
- 4 perimeters or shells (1.8 ~ 2 mm)
- 10 bottom layers (~ 2 mm)
- 10 top layers (~ 2 mm)
- Infill 15%~20%, depending on infill type
Additional items needed for assembly
- 2 x M5-12 Socket Hex screws
- 2 x M5 nuts (M5 nylon locking nut optional)
- Lining material to help the accessory mount clamp hold on securely to the front dérailleur tube. Common strips of bicycle helicopter tape, frame/surface guard tape or any other tacky Polly-Urethane material seem to work best.
Assembly Instructions
1- Insert and seat the M5 nuts in the molded pockets. It may be easier to use a longer M5 screw to first pull and seat the nut in the pocket.
2- Line the area of the front dérailleur tube where the accessory mount will clamp with suitable lining material
3- Mount the clamp to the front dérailleur tube. Secure the handle with the M5-12 screws, tight enough to prevent slippage, but not so tight as to deform the printed parts. The lining material between the clamp and the tube should provide enough friction to prevent slippage. DO NOT OVERTIGHTEN!
| Date published | 08/09/2020 |
| Price | $1.70 |
| Time to do | 206 - 207 minutes |
| Material Quantity | 45 grams |
| Dimensions | 117mm x 80mm x 26mm |
| Support Free | YES |