Control Box for John Gardener Earth Drill
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Replacement for the plastic control box and throttle lever. For John Gardener gas-powered Earth Drill, Model TF-DZ4901
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Updated at source:
Model information
- Source
- Printables
- Category
- Tools
- License
- Creative Commons — Public Domain
The throttle lever of my gas-powered earth drill broke off. Also, the attachment screw to the handle wore out. After trying several quick-fixes, I designed a new one with some improvements:
Throttle handle with long screw (3.5x40mm) to prevent breaking
Switch insert with lid, so no soldering required
2 slots for cable ties to connect control box to the handle
some reinforcements to mak part more stable
Printed on a Prusa MK3.5S with PETG, 40% infill, with supports.
Assembly instructions:
Take apart the original control box, you will need the metal parts
carefully screw in a screw 3.5x40mm into the lever
attach the lever to the body, use bolt/tension ring/spring exactly like original
attach throttle cable, exactly like original
tighten the cable sleve with screw and hex nut, like original
insert switch and attach lid carefully with 4x 3.0x15mm screws
push cable ties (I used 2.5x160mm) into slots and attach to handle