Profile cover photo
Profile photo
Whosa whatsis
2,673 followers -
Polymathic autodidact
Polymathic autodidact

2,673 followers
About
Whosa's posts

I'll have to count up screws and stuff before I can make a proper BOM for the Cranestyle Mini, but here are some links to get you started:

* 1x NEMA14 TR5*2 linear stepper (note: Robotdigg motors are wired 1324 and come with cables that cross-over the 2 and 3 wires, but if you want to do any nicer wiring, you'll need to know that): http://www.robotdigg.com/product/77/Huxley-Nema14-Linear-Motor-w/-180mm-Tr5*2-Acme-Leadscrew
* 3x high-torque NEMA14 (these unfortunately don't have D shafts, post if you find a good source that does): http://www.robotdigg.com/product/588/Nema14-44mm-high-torque-stepper
Alternative, you might try these instead, they're more expensive (shipping is also insane, IIRC), and you'll need a supply voltage of at least 24v for them to be viable, but they do have a D shaft (also, wires are integrated, which I don't like): http://www.omc-stepperonline.com/nema-14-bipolar-stepper-75v-05a-23ncm326ozin-14hs170504s-p-94.html
* 3x Pololu Stamped Aluminum L-Bracket for NEMA 14 Stepper Motors (these could be replaced with RP parts, but they are good for rigidity and heat sinking purposes): https://www.pololu.com/product/2257
* 1x MGN9C and 2x MGN12C, all 150mm long. Robotdigg has the MGN9, but only has MGN12 in longer lengths (which I suppose you could cut down if you really wanted). Both can also be found on both Amazon and Aliexpress.
* 1x each of Misumi HFS5-2040-220 (this one is actually a bit long, and I might revise it to 210mm) and HFS5-2080-150. While you're ordering there, you might as well get one pack each of M3 and M5 T-nuts.
* 2x Gates GT 2MR196 belts, 6mm width (closed loop, 196-tooth, the current version will not work with cut belts, but this will probably change)
* 2x 16T GT2 pulleys
* 1x CR8 hot end (1.75mm version, and you will also need thermal grease/heatsink compound to assemble it, and a 30mm fan, or the X carriage can be modified to fit a different hot end): https://www.aliexpress.com/item/CR8-Hotend-Bowden-CR8-Extruder-Remote-Distance-Hot-End-0-3-0-4-0-5-1/32788196509.html?ws_ab_test=searchweb0_0,searchweb201602_4_10152_10065_10151_10130_10068_10136_10157_10137_10060_10138_10155_10062_10156_437_10154_5010020_10056_10055_10054_10059_303_100030_100031_10099_100029_10103_100028_10102_10096_10147_10052_10053_10050_10107_10142_10051_10084_10083_5190020_10080_10082_10081_10178_10110_519_10111_10112_10113_10114_10037_10183_10182_10185_10032_10078_10079_10077_10073_10123_142-10050,searchweb201603_2,ppcSwitch_7&btsid=1a8d0bc3-cb90-460b-9748-141a36548a1c&algo_expid=ff0c2010-8ff9-4c06-8d2f-b684b9b732da-0&algo_pvid=ff0c2010-8ff9-4c06-8d2f-b684b9b732da
* 6x F623 bearings for smooth-side belt pulleys PLUS an additional 8x for toothed-side pulleys OR substitute 4x 16T pulleys with bearings for an m3 shaft (not yet tested): http://www.robotdigg.com/product/132/Flanged-Ball-Bearing-F623ZZ
* 1x v623 bearing used for extruder idler (or it can be modified to use a regular bearing, extruder design may also not be final): http://www.robotdigg.com/product/430/V-Type-Ball-Bearing-V623ZZ
* 1x Tatsu Mini drive gear (extruder can be modified to use a different gear): https://shop.deezmaker.com/products/tatsu-mini-w-gripper-5mm-bore
* 1x E3D embedded bowden coupling (also check US resellers): http://e3d-online.com/Embedded-Bowden-Couplings-For-Metal-1.75mm-Filament?search=coupling
* 1x Openbuilds 100mm platform heater (I actually used the older http://openhardware.co.za version, but this one should be better): http://openbuildspartstore.com/mini-heated-bed/

There are also plenty of nuts and bolts that I'll have to measure and count, but that should get you started.

Post has shared content
Got a lot of interest at Maker Faire, so I've gone ahead and posted the files in their current state. Not final, and it will be hard for anyone to build one until I put together a BOM and maybe some instructions, but they're there for those who want to take a look.

Post has attachment
Got a lot of interest at Maker Faire, so I've gone ahead and posted the files in their current state. Not final, and it will be hard for anyone to build one until I put together a BOM and maybe some instructions, but they're there for those who want to take a look.

Weird issue, I tried activating Z lift, and suddenly my prints looked underextruded and were stretched vertically. It looks like it is lifting on a G10, but not dropping back down on a G11. Anyone seen this before?

Post has shared content
I've been building a little something.

I'm calling it the Cranestyle Mini.
PhotoPhotoPhotoPhoto
5/13/17
4 Photos - View album

Post has attachment
I've been building a little something.

I'm calling it the Cranestyle Mini.
PhotoPhotoPhotoPhoto
5/13/17
4 Photos - View album

Post has shared content
We've posted module 1 of our (+Whosa whatsis and my) Hacker Calculus project - a little Circuit Playground based device you can make to visualize acceleration. Details on the device:
https://hackaday.io/project/20621-hacker-calculus/log/58363-log-1-visualizing-acceleration

Please like and follow our project(Hackaday account required) at https://hackaday.io/project/20621-hacker-calculus
Photo

Does Youmagine support Markdown or not? Every time I try to format something, it looks fine in preview, but the formatting doesn't show up on the published page. Even the links don't work unless I just include the URLs as text. I also wanted to embed a youtube video of the design in action. That showed up in the preview but on on the page as well.

Post has attachment
I made a blinky.
Photo

I'm looking for a purely-mechanical mechanism that will keep two rotating shafts at the same angle with a variable distance between them. The best ideas I've come up with so far are a pair of 4-bar mechanisms attaching to a third point or putting a keyed linear shaft through the two with bevel gears or universal joints, but is there anything better? I don't need full rotation, just 180 degrees. Any ideas?

+Nicholas Seward +Ryan Carlyle
Wait while more posts are being loaded