Robobot hardware: Difference between revisions
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Drive types used: | Drive types used: | ||
* Umbraco (Allan) type: plane hexagonal drive and tool (mostly | * Umbraco (Allan) type: plane hexagonal drive and tool (mostly 3, 4 and 5mm) | ||
* Cross PH (Philips type) is not used much (size PH0, PH1, PH2). | * Cross PH (Philips type) is not used much (size PH0, PH1, PH2). | ||
* Cross PZ (Pozidrive) is | * Cross PZ (Pozidrive) is not used much (size PZ0, PZ1, PZ2). | ||
* 6-lobe or (Tork) (size T10 | * 6-lobe or (Tork) (size T08 and T10 are used) | ||
Revision as of 14:55, 1 November 2023
Back to Robobot B
Hardware
Mounting holes
The hardware is 3D-printed plastic (except for the electronics and screws)
All 3D printed parts have holes for mounting additional parts. These holes have:
- Individual hole distance of 1cm.
- Hole diameter of 2.5mm, intended for 3mm plastic screws.
- Plastic thickness is 6mm in most cases.
Screws for plastic (PT screws)
Mounting items on the 3D printed plastic should use plastic screws.
Plastic (PT) screws:
- Cut into the plastic with a sharp high-pitch thread.
- Gets locked into the plastic.
Plastic (PT) screw selection:
- Pan-head 3mm diameter and length:
- 6mm, 10, 14mm, 18mm
- Countersunk 3mm
- 10mm, 14mm
Pan head screw for thermoplastic.
Screws for metal
Mounting of motors and other metal parts should use screws for metal.
Metal screw selection:
- M3 pan head
- M3 countersunk (for e.g. motor mount)
- M6 bolt, length 40mm?
Most screws for metal have a Umbraco (Allan) type drive.
Screw drive type
We could, unfortunately, not standardize on one type of screw drive type.
Drive types used:
- Umbraco (Allan) type: plane hexagonal drive and tool (mostly 3, 4 and 5mm)
- Cross PH (Philips type) is not used much (size PH0, PH1, PH2).
- Cross PZ (Pozidrive) is not used much (size PZ0, PZ1, PZ2).
- 6-lobe or (Tork) (size T08 and T10 are used)
