Hammer / Mallet
$3.70 Hammer / Mallet
3D
Published 2021-10-13T09:24:52+00:00
A 3D printable mid-size robust and durable Hammer/Mallet, with replaceable end caps, designed to provide a softer blow than a steel head to the struck surface and control the striking force with minimal rebound, depending on the material the end caps are made from. The hardness or softness of the blow can be easily adjusted, by making the end caps with different materials ranging from very stiff (PLA), moderately stiff (ABS/ASA), moderately soft (TPU), to very soft with other flexible filaments. The hammer/mallet helps accidental damage while performing precision work with a variety of tools and chisels, especially in tight locations.
This design consist of three separate parts: a handle threaded to accept two different styles removable caps or striking heads. Most of the parts can all be 3D printed, without any support, on a smaller size hobbyist 3D Printer such as the Prusa Mini or other similar printers, with a build area of 180 mm X 180 mm (~7” X 7”).
The round end cap however requires support along the outer rim to print correctly.
The parts can be printed with a variety of materials, including PLA, PETG, ABS, ASA, TPU and many other types of printable materials, depending on the desired properties and hardness.
PLA works well for this application as long as the parts will not be used, stored or kept in a high temperature environment, exceeding ~55 C (~ 130 F).
PETG and ASA are other excellent choices.
For a semi-flexible softer striking surface use TPU for the end caps.
My favorite combination is PETG for the handle and the round cap, and TPU for the flat cap.
The object should be durable, easy to maintain, and last for a long time.
Recommended print settings with a .6 mm nozzle
- Layer Height: .2 mm
- Line width: 0.67 ~ 0.75mm (3 ~ 3.5 mm)
- 4~5 perimeters or shells (3 mm depending on line width)
- 15 bottom layers (3 mm)
- 15 top layers (3 mm)
- Infill: Handle 15%~20%, depending on infill type
End caps 100% (solid infill for a strong end cap)
Note: The round end cap “MHMK2EndCap-RoundM.stl” requires support on the external rim to print correctly.
Recommended print settings with a .4 mm nozzle
Note: A 0.4 mm nozzle requires a sightly larger shell to maintain the same part strength. Therefore we recommend adding one or two additional perimeters as well as one extra top and one extra bottom layer.
- Layer Height: .2 mm
- 8 perimeters or shells (3.6 ~ 4.0 mm)
- 16 bottom layers (3.2 mm)MHMK2EndCap-RoundM.stl”
- 16 top layers (3.2 mm)
- Infill: Handle 15%~20%, depending on infill type
End Caps 100% (solid infill for a strong end cap)
Note: The round end cap “MHMK2EndCap-RoundM.stl” requires support on the external rim to print correctly.
Assembly Instructions
1- Insert and fully seat the end caps in the handle
| Date published | 13/10/2021 |
| Price | $3.70 |
| Time to do | 1080 - 1500 minutes |
| Material Quantity | 290 grams |
| Dimensions | 210 mm X 37 mm X 40 mm |