Commit d0afd9b7 authored by Jake Read's avatar Jake Read
Browse files

small docu update, clank stretch

parent 0548236a
......@@ -18,11 +18,15 @@ This is a larger machine, **256x256x128mm**, that uses a taller frame and a cant
![render](log/images/2020-11-12_clank-cz.jpg)
## Clank-Stretch
![stretch](log/images/2021-02-20_clank-stretch.jpg)
## Tool Changing
I am bringing a toolchange system on line for this as well, small demo below, designs are changing. Track progress for TC [here](https://gitlab.cba.mit.edu/jakeread/hotplate).
![toolchange](log/videos/2020-11-12_clank-tool-pickup.mp4)
![toolchange](log/videos/2021-02-12_hot-pinch.mp4)
## HDPE Milling
......@@ -30,4 +34,4 @@ I am bringing a toolchange system on line for this as well, small demo below, de
## Printing
![first print](log/videos/2021-01-24_hotend-print.mp4)
\ No newline at end of file
![first print](log/videos/2021-01-24_hotend-print.mp4)
This source diff could not be displayed because it is too large. You can view the blob instead.
This diff is collapsed.
This diff is collapsed.
......@@ -4,6 +4,26 @@
making clank into a 3d printer
## 2021 02 18
I am building a 'stretch' clank - this is ~ 1024 x 512mm of area: a big flat thing. Mostly because I want to prototype new motion controllers and a simple 2D machine is great for that, and also because I am trying to transition Clank-CZ into a kind of printing workhorse.
So! Basically at the moment I need cable management for these long runs. I wouldn't mind if it cleans up OK for the -CZ as well.
I think this actually starts with a taller faceplate on the toolchanger...
Lorde this is aweful. There is just apparently no good place to put such a long loom.
Best I can think to do is get a big steel flex band and lay it from the left-rear corner to the X carriage... then run a second line from left-rear to the YL carriage, and across to YR. I guess I prototype this on the X run, and if the approach seems sound, duplicate it on YL.
This is totally hurting my brain. I'm going to put it down and return at some later date, maybe after the next NIST meeting. I think it deserves to go along with the pogo-pin hot-plate-end-effector-connector for spindles etc, so maybe I should just punt something out for this little motion-only experiment machine and return to the problem when I feel like getting serious about making Clanks that do things (i.e. sheet milling etc) as useful / desireable tools again.
## 2021 02 12
Also, should put the toolchanger in here:
![tc](videos/2021-02-12_hot-pinch.mp4)
## 2021 01 24
Last 2 months I've been making (1) a new toolchanger [here](https://gitlab.cba.mit.edu/jakeread/hotplate) and then have been rolling better systems integration code, and bringing 3D Printing to Clank. This meant a lot of new circuits (heaters, loadcells), developing a bed (I picked aluminum pcbs) and a hotend, those are [here](https://gitlab.cba.mit.edu/jakeread/print-bed) and [here](https://gitlab.cba.mit.edu/jakeread/glue-gun).
......
## "Finished" Clank
I started this design about february of 2020, so they're ~ 1yr old now, although it only became an extrusion machine in March of 2020.
I would like to, at some point, feel done with these designs. I think they fit a nice niche: being very easy to make, relatively robust for a few processes (print / light milling / pnp / pipetting / etc) this kind of 'desktop' scale. Being printed, they'll never be very stiff. However, making a series of tools and workflows available around this one platform seems valuable and the approachability of the scale is wonderful as well. Also, they're fairly cheap.
So, before I allow myself to follow another path towards i.e. composite laid-up-beam machines (for i.e. a large format mill), I want to 'finish' this project. That would mean:
### Stable Toolchanger
- this might get a cable-drive actuation, tbd if it helps in tool stability / tool changer weight / x-carriage size
- otherwise, I think the form and fit of the changer is pretty good.
- hot-swap network end effectors:
- toolchanger wants a pogo-pin connector plate through to end effectors, so that each tool doesn't need its own wiring loom
### XY Cable Routing
- this includes implementing / running power & network through to the tool changer, and the revisions should happen together
- ideally, one routing solution for large & small machines
### Clank-Print Z-Drive
- I am toying with the idea of lifting the XY gantries rather than dropping this heavy bed, TBD,
### Clank-Wide Z-Drive
- like the Clank-LZ, but better, I want a small z-drive that rides along with the X carriage for i.e. large plotters / milling machines / knife cutters / pnp (?) etc
### Versioning
I think at 'the end' there would just be two variants: a wider / flat build, for "thin" aspect ratio fab, and a taller build for i.e. 3D Printing and small format milling (and the hybrids)
### Controllers
This also assumes success with OSAP, and there's a whole laundry list there as well.
### Tools
- spindle
- probe
- print head
- camera
- rotary / knife tool
- ... etc: open season
### Documentation
I would say the way to do this would be to do full documentation for 'wide' and 'tall' machines of some set size. Both should have interchangeable tools (and the same tool changer) so end-effector docs can be separate.
So, in the end, a family of two machines with one set of interchangeable heads... and probably similar controllers, as well.
\ No newline at end of file
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment