Search found 20 matches

by jamesdhatch
Thu Jan 21, 2016 6:58 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

@dwardio - are you having problems printing the hand or with the leftovers after you've removed the supports? If it's the latter, I do a bit of post-print cleanup using a hot stamping iron to smooth the remnants of the cut outs. If it's the former, can you use the unsupported version and have your s...
by jamesdhatch
Tue Jul 07, 2015 10:21 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

I did a 165% that's sitting at home but used the clear Plasti-Dip. I can try the Tippis when I get back (I'm on a business trip this week). I believe I have size 3s but may have a variety pack that has other sizes as well. I like the Plasti-Dip though as it's pretty easy to use and the can isn't ver...
by jamesdhatch
Fri Jul 03, 2015 4:26 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

Well okay if you want to get technical :D :D You are correct.

In my defense I was up late waiting on the results of the first leg of this year's Iron Butt Rally. :shock:
by jamesdhatch
Fri Jul 03, 2015 2:22 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

My test hand is done. 115%. Used 1/4" bands on the knuckles and 5/16" ones on the fingertips. Also used the thermoformed gauntlet. With the 1" strap mod.
by jamesdhatch
Thu Jul 02, 2015 11:40 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

Here are what eight nice fingertips look like. Small and long in two groups - 100%/115%/125%/150% left to right. Printed on a MakerBot Replicator 2X with ABS, 2 shells, 35% hex infill, no supports, 0.2mm layer height.


IMG_20150702_072240.jpg
IMG_20150702_072240.jpg (909.21 KiB) Viewed 33557 times

IMG_20150702_072303.jpg
IMG_20150702_072303.jpg (1.12 MiB) Viewed 33557 times

IMG_20150702_072313~2.jpg
IMG_20150702_072313~2.jpg (688.26 KiB) Viewed 33557 times
by jamesdhatch
Thu Jul 02, 2015 9:04 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

I've printed the fingertips that I downloaded on 6/22 at 135% and 145% and the Lee Tippi size 3 fit well on both. On the topic of finger tip printing problems I ran an experiment to overcome some issues that encountered yesterday trying to print a short fingertip at 145%. John - did you try printin...
by jamesdhatch
Thu Jul 02, 2015 1:08 am
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

I'm printing a series of both long and short fingertips at 100, 115, 125, 150% to see how they come out at various sizes. 3hrs projected print time for 8 fingertips. I need a faster printer :D
by jamesdhatch
Wed Jul 01, 2015 6:24 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

Yep. I'll do them at some different sizes to make sure they're good small to large.

BTW, does anyone ever go smaller than 100%?
by jamesdhatch
Wed Jul 01, 2015 1:16 am
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

Spot on changes! Back to printer defaults and the new tips print normally at both 100 & 115% first try. I don't think the differences in shape/look would be noticeable to anyone without the original next to it to compare. The top of the tip (the underside when printed as they print upside down) ...
by jamesdhatch
Mon Jun 29, 2015 5:41 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

Jason, thanks for thinking about this. I had no problems whatsoever with either the earlier dental band version at 100% or the fingers on the Phoenix at 115% (or Raptor & Raptor Reloaded at 165%). The only part that came out badly was the thumb and I reprinted it 8 times over the past few days -...
by jamesdhatch
Mon Jun 29, 2015 3:41 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

I did a print of the latest design this weekend (including the original gripper box) using the thermoform strap gauntlet at 115%. I had issues with the thumb coming out badly formed until I switched to the original dental band thumb, reduced print speeds and printed using the Makerbot's "suppor...
by jamesdhatch
Mon Jun 22, 2015 12:34 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

I'm out of town on business this week but will grab a couple of pics when I get back home this weekend.
by jamesdhatch
Sun Jun 21, 2015 5:10 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

I did a 165% and ended up scaling the pinky down a little bit. It was too big from an aesthetic standpoint - looked too blocky - but it also was really hard to make a firm grab of things. Scaled down 10% (from the scaled up size) it curls better when the hand closes and is a more natural grip. Oh it...
by jamesdhatch
Sun Jun 21, 2015 12:21 am
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

Father's Day project - print a hand :-)

Thanks, looking good. You might want to update the text log to reflect June vs July as the month for the updates ;)
by jamesdhatch
Tue Jun 16, 2015 1:22 am
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Plasti Dip Primer

I'm finishing up my test fingertips with clear Plasti Dip but couldn't find their primer locally. Checking it out online, it looks like it's mostly Toluene with some Xylene and Ethylbenzene for good measure (but almost 90% toluene). It's often used industrially as a paint thinner. A respirator is re...
by jamesdhatch
Mon Jun 15, 2015 11:10 pm
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

by Jason M Bryant » Mon Jun 15, 2015 6:33 pm I love that we're getting different print problems from different people. It's so nice to have several people and test with different machines. Maybe we should put together a list of who is using what kind of printer we're using to help folks know what w...
by jamesdhatch
Mon Jun 15, 2015 2:19 am
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

I've made some corrections/edits to help clarify some things (since I'm something of a middlin - neither entirely newbie but not an old hand at this) and formatting to make it easier to read & follow. Feel free to use them (I had the Review function on with Word) or ignore. https://www.dropbox.c...
by jamesdhatch
Sat Jun 13, 2015 3:17 am
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36401

Re: The New Hand (previously Eagle Hand) fabrication and mechanical function testing

3. The rubber bands work well, although I only have 1/8 inch bands. These are too tight for this hand and the tips are bending in before the palm joints. I gotta find some larger bands. Other than Amazon, where on earth do you find these dental bands? No luck at CVS or Walgreen's or Walmart. If I h...

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