I have sets of printed parts and the filament in various colours. Can also help with things like extruder barrels, PTFE rod, drive gear and belt sets etc. The rest of it is pretty much off-the-shelf. I suggest you look at the Mendel design on reprap.org, specifically the "Simplified Mendel" and then give me a shout. Oh, and get an Arduino and start playing with it. Vik :v)by VikOlliver - New Zealand RepRap User Group
I've sucessfully used 1/4" "piano wire" on the y axis. It's not a brightly polished surface but has no actual grooves in it. I believe it is available from most model shops. If you had an 8mm brass bushing instead of a bearing it would probably slide nicely over the spiral grooves. Vik :v)by VikOlliver - General
Spot price is NZ$250 (+GST for local orders) Vik :v)by VikOlliver - New Zealand RepRap User Group
Yes, making Simplified Mendel parts plus things like extruder barrels, gears, belts etc. Mindkits.co.nz is supplying them with the complete kit. Vik :v)by VikOlliver - New Zealand RepRap User Group
I've been talking to Tim from mindkits.co.nz and we're putting a kit together for the NZ market (uses locally available bits), supplying PLA, steppers etc. First batch of 10 under construction, so soon there should be a lot more Kiwis in this forum Vik :v)by VikOlliver - New Zealand RepRap User Group
Hi, glad you stopped by for a look. You can get me on my gmail account, vikolliver@etc - happy to help you source stuff. A few points: Bonding belt makes it hard to replace. A couple of screws is easier for lazy buggers such as myself. Instant gratification The Z sensor is a single lever microswitch costing $1. It works fine. Vik :v)by VikOlliver - New Zealand RepRap User Group
Awesome. Should make porting to a Maple board a lot easier. Hmm, will it run on an Android phone? Vik :v)by VikOlliver - New Zealand RepRap User Group
Well, let me know if I can help. Vik :v) (currently in Wellington)by VikOlliver - New Zealand RepRap User Group
Will they do PLA? Vik :v)by VikOlliver - General
Given the Open Source proviso, I think it's a good idea. I am wary of it resulting in RepRap factories made using the traditional approach. This would result in the design being optimised for conventional mass-production rather than ad hoc manufacture in the field. As an example, there is a tendency to move to microelectronics boards which cannot be built using a RepRap due to their fine track piby VikOlliver - Kartik M. Gada Humanitarian Innovation Prize
That looks kinda printable... Vik :v)by VikOlliver - New Zealand RepRap User Group
First we need to build a working actuator of any size. Vik :v)by VikOlliver - New Zealand RepRap User Group
Yeah, but with a command and control unit in every cell in your body, you need never die and can replace the need for DNA. With a test-tube full of Monte Carlo-based fabricators/testers creating and testing novel materials you'll know if there is a room temperature superconductor the next morning. It's a bigger biggie that he suspects Vik :v)by VikOlliver - New Zealand RepRap User Group
The wedge design needs a little more work. Nearly there. Vik :v)by VikOlliver - New Zealand RepRap User Group
OK. Are you after a Darwin or the Wedge-type design? There's about $40-worth of plastic in there and it takes me a month or so to make the bits. I think Fresco seriously underestimates the influence nanotechnology is having, BTW. With goods and services provided on tap (within your energy budget) there will be little reason to congregate in cities if you don't want to. Heck, no need to hang arouby VikOlliver - New Zealand RepRap User Group
I just want to do a single, 1-layer zig-zag raft. What's the magic for that? Last time I tried it messed up a lot. I think I might have had some parts out of bounds on X & Y though. Vik :v)by VikOlliver - Skeinforge
Yes, I've used it to replace the end of an electric cigarette. It does yellow with age though. Stays tough and reusable - just goes a bit yellow much as epoxy does as it ages. Vik :v)by VikOlliver - New Zealand RepRap User Group
Not this Friday, I'm afraid. Next Friday is realistic. I've got some extruder parts done already that you can have. Will you be using 16mm or 10mm PTFE ('cos the clamp part varies)? I have some if you're short. Vik :v)by VikOlliver - New Zealand RepRap User Group
Which parts? To give you an idea, a single corner block is about 4 hours of printing. Vik :v)by VikOlliver - New Zealand RepRap User Group
Looks like we're close enough to exchange bits anyway! Vik :v)by VikOlliver - New Zealand RepRap User Group
The top might be interesting. Looks like output from getPositionRelativeToBehind if abs( rotatedClockwiseQuarter ) == 0: print( self.circleNodeAhead.circle ) print( self.circleNodeBehind.circle ) File /home/vik/Playground/angled_extruder_filament_holder.stl is being chain exported. (45.639+5.518j) (45.639+5.518j) Exception in Tkinter callback Traceback (most recent call last): File "/by VikOlliver - Skeinforge
I'm getting this one: File "/home/vik/skeinforge/skeinforge_tools/skeinforge_utilities/intercircle.py", line 458, in isWithinCircles absolutePosition = self.getAbsolutePosition() File "/home/vik/skeinforge/skeinforge_tools/skeinforge_utilities/intercircle.py", line 424, in getAbsolutePosition return self.getPositionRelativeToBehind() + self.circleNodeBehind.circle File "/home/vik/sby VikOlliver - Skeinforge
Thanks! I'll just spread the comment out then. I just tried out the new Z speed control and managed to successfully print a Tamiya motor bracket for Simon. Now to do the next bit for him. Vik :v)by VikOlliver - Skeinforge
If I modify cool.py to track the Z axis and inset a slow move: def addHopUp( self, location ): "Add hop to highest point." if location.z != self.highestZ: self.addLine(";G1 F20.0 ;Low speed for Z move") self.addLine(";G1 Z%s" % (self.highestZ)) locationUp = Vector3( location.x, location.y, self.highestZ ) self.addLine( self.getLinearMoveWithFeedrate( self.travelFeedratePerMinute,by VikOlliver - Skeinforge
There is however a difference between 90% of the market and 90% of the doers and thinkers. Granted you're doing a lot and thinking more than a fair bit. However the prevalence of non-Wintel systems increases dramatically when you start hitting the maker community for a number of reasons. Yes, I'd rather something Open and cross-platform was used, but: a) Forrest is achieving things, and b) He'sby VikOlliver - RepRap Host
OK, tested. Looks like it works. Now to fix the pesky Z axis speed and I'll be able to print something again I'm just thinking of a quick hack to keep track fo the Z parameter, and when it changes I'll insert G1 Z F20 before the actual 3-axis movement command. Call it zstaging or somesuch. Vik :v)by VikOlliver - Skeinforge
That was quick! I'm being dragged to bed now, but tomorrow is a research day I'll test it when I wake up. Vik :v)by VikOlliver - Skeinforge
I'd say keep it simple with the extruder to start with - you can build another one later The standard screw-feed one works OK right now, but the pinch-wheel is now supported I hear. For filament I strongly recommend the PLA. It works well at a lower temperature and does not suffer from shrinkage so much. Vik :v)by VikOlliver - United Kingdom RepRap User Group
I've tested this using a couple of sed scripts. If I fix the final skeinforge gcode up it gets the zero-seeking stuff done in a way that works on a real reprap: cat your_skfile.gcode |sed "s/G92 X0.*/G1 X-250.0\nG92 X0 ;set x 0/g"|sed "s/G92 Y0.*/G1 Y-250.0\nG92 Y0 ;set y 0/g"> fixed_file.gcode Maybe the homing code needs to be further down the chain? Vik :v)by VikOlliver - Skeinforge