This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
projects:welcome [2017/11/14 19:35] jerzydziewierz krautkramer |
projects:welcome [2017/11/14 19:40] jerzydziewierz |
||
---|---|---|---|
Line 5: | Line 5: | ||
{{: | {{: | ||
- | ----------- machine | + | == Machine |
Outermost dimensions with some margin: | Outermost dimensions with some margin: | ||
Line 14: | Line 15: | ||
- | The machine itself is very robust | + | The machine itself is very robust. |
- | It is likely approx. 40 years old. There is no driver electronics whatsoever, but there is: | + | |
+ | It is likely approx. 40 years old, but for what it is, it has seen only a very light use. It was used to guide an ultrasonic probe in a water tank. The base, and the bridge | ||
+ | |||
+ | There are no driver electronics whatsoever, but there is: | ||
+ | |||
+ | * high precision rails on both axes. No play. No rust, no damage. Noiseless. | ||
+ | * Linear motors. These are noiseless. Known coil resistance: 14 ohms. Tested working with 2A current, although, we'd have to test how much can they take before overheating. Ideally, they need onboard temperature monitor. | ||
+ | * Ultra high precision linear encoders, with a sine-cosine output. Tested works OK at 5V supply. | ||
+ | * elastic covers on both axes. This makes it a very pro-looking machine. | ||
- | * high precision rails on both axes. No play. No rust, no damage. | + | == What is missing: == |
- | * Linear motors. There are noiseless. Known coil resistance: 14 ohms. Tested working with 2A current, altough, we'd have to test how much can they take before overheating. Ideally, they need onboard temperature monitor. | + | |
- | * Ultra high precision linear encoders, with sine-cosine output. Tested works at 5V supply. | + | |
- | * elastic covers to all axes. This makes it a very pro-looking machine. | + | |
- | What is missing: | ||
* We need to build the servo amplifier and the motion controller for it. | * We need to build the servo amplifier and the motion controller for it. | ||
* We need to build a motion controller for it. *machinekit* has been suggested. As far as I understand, the club has a beaglebone black waiting for such opportunity | * We need to build a motion controller for it. *machinekit* has been suggested. As far as I understand, the club has a beaglebone black waiting for such opportunity |