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=Aug 8 2013= | =Aug 8 2013= | ||
* Created a set of build instructions for the "Material Awareness exercise" | |||
* Built the "Material Awareness structure" | |||
** Observations: | |||
*** Material is much bigger and heavier than you would think from the sketchup model | |||
*** Assembly works best if nothing is tightened down until entire structure is assembled | |||
* Disassembled structure | |||
* Did inventory of 1" bolts and nuts. | |||
* Did inventory of hydraulic hoses | |||
= Aug 7 2013= | = Aug 7 2013= | ||
Revision as of 22:32, 8 August 2013
Aug 8 2013
- Created a set of build instructions for the "Material Awareness exercise"
- Built the "Material Awareness structure"
- Observations:
- Material is much bigger and heavier than you would think from the sketchup model
- Assembly works best if nothing is tightened down until entire structure is assembled
- Observations:
- Disassembled structure
- Did inventory of 1" bolts and nuts.
- Did inventory of hydraulic hoses
Aug 7 2013
Search "Brake valves to control hydraulic motors with over-running loads"
http://hydraulicspneumatics.com/other-technologies/book-2-chapter-12-fluid-motor-circuits
Information on Overcenter Valves:
http://www.designworldonline.com/overcenter-valves-are-key-to-hydraulic-control/#_
Interactive video on how hydraulic brake valves work
http://www.wisc-online.com/objects/ViewObject.aspx?ID=HYP3707
We need either a drum brake system or a hydraulic brake valve.
Our current Drum: http://www.surpluscenter.com/item.asp?catname=hydraulic&item=9-9003
Options for drum brake:
Fits our drum, but costs $560 : http://www.jegs.com/i/Currie/272/96226/10002/-1?parentProductId=756792
Does not fit, but demonstrates that there may less costly options: http://www.surpluscenter.com/item.asp?item=28-1324&catname=
Options for hydraulic brake valve:
Still need to determine price and circuit : http://www.hydrotech-bg.com/common/d_images/src/file/PDF/E4-ACCESSORIES.pdf - See Overcenter valves with brake control
Aug 6 2013
Brake Research
Discusses several brake systems, their advantages and disadvantages, as well as how to trouble shoot them.
There are two commonly used types of brakes. Drum-Brakes, and Disk-Brakes.
This is the motor we have: http://www.surpluscenter.com/item.asp?item=9-10419&catname=hydraulic
This motor would have been better I think: http://www.surpluscenter.com/item.asp?item=9-7703&catname=hydraulic
Aug 2 2013
Crowd sourced CAD model Database - models can be downloaded in many formats