Onoff Posted December 29, 2021 Share Posted December 29, 2021 Decided I need a longer than average trash picker befitting someone of my stature. This after a spot of civic duty earlier. I took it upon myself to collect the recyclables along the 1/2 mile stretch outside my house. AONB my arse! ? There were plenty of cans just out of reach in the hedgerows. Found a business end, claw thing on Yeggi that uses a 10 or 15mm dia tube as the main shaft. Printed both options but it'll be based around 15mm copper pipe: There was no design for a handle though so I came up with this. Just a render here, being printed at the moment. My lad did the chequering on the model I did: 3 Link to comment Share on other sites More sharing options...
SteamyTea Posted December 30, 2021 Share Posted December 30, 2021 A new ST panel in the making Did you download that from the dark web, looks like a gun. Link to comment Share on other sites More sharing options...
Onoff Posted December 30, 2021 Author Share Posted December 30, 2021 The MK1 handle is printed and the 15mm pipe is a lovely transition fit. Likely a tad loose but PETG is inherently a bit hairy I find, so that helps with grip. The holes in the grip will make it a doddle to drill through the copper and fit some roll pins to hold it together. I might even just use split pins so I can field strip it with just a Leatherman... ? Really happy with the chequering effect my lad managed on the grip. However... The ergonomics leave a bit to be desired. I have really big hands so should really scale this up a bit. I think it looks a bit lost: If I extend the copper out the back, up to a wrist brace, then it pushes into the flesh between thumb and forefinger. I wonder if that will rub and / or leave me with a green mark? It needs to be perfect so it's the envy of other trash pickers like an Ulfbehrt sword... Options are to make the grip bigger, lessen the grip angle maybe or raise the tube higher. As I designed the grip by laying a real trash picker on a flatbed scanner and tracing round the image in AutoCAD I'm happy for a first go. Trigger next I guess. Link to comment Share on other sites More sharing options...
Radian Posted December 30, 2021 Share Posted December 30, 2021 13 minutes ago, Onoff said: Really happy with the chequering effect my lad managed on the grip. That's very cool. Was it using a parametric CAD like OpenSCAD? Link to comment Share on other sites More sharing options...
Onoff Posted December 30, 2021 Author Share Posted December 30, 2021 5 minutes ago, Radian said: That's very cool. Was it using a parametric CAD like OpenSCAD? I did the basic 3D model in AutoCAD and exported as an STL. My lad tweaked it and added the chequering in Fusion 360 I think. Link to comment Share on other sites More sharing options...
ToughButterCup Posted December 30, 2021 Share Posted December 30, 2021 Clive, thats brilliant. Looks like it'll do the job much better than my current litter picker. Stuff slips through the jaws because (I think) I can't get enough grip, and sometimes if I do get the right grip level, then the jaws cut through the material. Maybe the jaw lips could have a small ridge on them so that, locally, the grip pressure is greater there than elsewhere in the jaw? I ask because - on occasion - I have to lift quite heavy 'litter' - dead rats. Link to comment Share on other sites More sharing options...
Onoff Posted December 30, 2021 Author Share Posted December 30, 2021 1 hour ago, ToughButterCup said: Clive, thats brilliant. Steady on now, there's the whole not losing interest / finishing it issues to overcome yet! ? The great thing about this 3D stuff is it's scaleable. So you could make a bigger one for bigger loads or bigger operators even. Good old Fred Taylor! Interesting with your situation hand wise as you could make custom grips etc. A wrist brace might compensate for lack of hand strength to hold the thing and so on. Link to comment Share on other sites More sharing options...
Onoff Posted December 30, 2021 Author Share Posted December 30, 2021 So now I have to figure the trigger (that rhymes ?). In the original box section type it's quite simple as the inside faces of the box side walls provide a bearing surface for the plastic trigger: Shouldn't be insurmountable though. A bit of time on the CAD should have it figured. I'm thinking it'll be a case of cutting a slot with a Dremel in the underside of the copper pipe. It's amazing what you can do with a Dremel and all the various cutting discs and grinding stones, that and some needle files: I need to sort that bottom corner where I overshot with the grinding tool. (Yet another unfinished project ?) Link to comment Share on other sites More sharing options...
Radian Posted December 30, 2021 Share Posted December 30, 2021 You gonna build a silencer for that? ? Link to comment Share on other sites More sharing options...
Onoff Posted December 30, 2021 Author Share Posted December 30, 2021 8 minutes ago, Radian said: You gonna build a silencer for that? ? What for a Star Wars blaster? Link to comment Share on other sites More sharing options...
Radian Posted December 30, 2021 Share Posted December 30, 2021 1 hour ago, Onoff said: What for a Star Wars blaster? What's "Star Wars" ? ? ? Link to comment Share on other sites More sharing options...
Onoff Posted December 30, 2021 Author Share Posted December 30, 2021 33 minutes ago, Radian said: What's "Star Wars" ? ? ? Bloody kids. Link to comment Share on other sites More sharing options...
SteamyTea Posted December 30, 2021 Share Posted December 30, 2021 4 hours ago, Onoff said: needle files https://www.natchezss.com/wheeler-engineering-professional-gunsmith-file-set.html https://www.forbes.com/sites/andygreenberg/2013/05/14/diy-firearms-makers-already-replicating-and-remixing-the-3d-printed-gun-photos/ Link to comment Share on other sites More sharing options...
Onoff Posted December 30, 2021 Author Share Posted December 30, 2021 43 minutes ago, SteamyTea said: https://www.natchezss.com/wheeler-engineering-professional-gunsmith-file-set.html https://www.forbes.com/sites/andygreenberg/2013/05/14/diy-firearms-makers-already-replicating-and-remixing-the-3d-printed-gun-photos/ Nice files. I won't be contravening the VCRA any time soon trust me! Link to comment Share on other sites More sharing options...
SteamyTea Posted December 30, 2021 Share Posted December 30, 2021 1 minute ago, Onoff said: Nice files I am sure there is a strange looking file called a rifling file, kind of pointed, 3 side and curved at the end. Link to comment Share on other sites More sharing options...
Onoff Posted December 30, 2021 Author Share Posted December 30, 2021 2 minutes ago, SteamyTea said: I am sure there is a strange looking file called a rifling file, kind of pointed, 3 side and curved at the end. The Lidl set doesn't have one in ? I think you mean a riffler file? Link to comment Share on other sites More sharing options...
SteamyTea Posted December 30, 2021 Share Posted December 30, 2021 (edited) 6 minutes ago, Onoff said: riffler Yes. That was it. Think I have one in my apprenticeship toolbox that moves around with me, but never gets opened. It is in the loft with my portrait painting. Edited December 30, 2021 by SteamyTea Link to comment Share on other sites More sharing options...
Onoff Posted December 30, 2021 Author Share Posted December 30, 2021 19 minutes ago, SteamyTea said: It is in the loft with my portrait painting. I reckon you must have a leaky roof. Link to comment Share on other sites More sharing options...
SteamyTea Posted December 30, 2021 Share Posted December 30, 2021 Just now, Onoff said: I reckon you must have a leaky roof. No, just dry and flaking. Link to comment Share on other sites More sharing options...
ToughButterCup Posted December 30, 2021 Share Posted December 30, 2021 7 hours ago, Onoff said: .... A wrist brace might compensate for lack of hand strength to hold the thing and so on. Exactly. I find that proper leather gloves make a huge difference to my hand grip strength: I'm always looking for ways to compensate for my stump-filled hands. A wrist brace is an idea I haven't explored... thanks. Link to comment Share on other sites More sharing options...
Onoff Posted December 30, 2021 Author Share Posted December 30, 2021 8 minutes ago, ToughButterCup said: Exactly. I find that proper leather gloves make a huge difference to my hand grip strength: I'm always looking for ways to compensate for my stump-filled hands. A wrist brace is an idea I haven't explored... thanks. There's some really clever stuff done with 3D scanning of affected limbs. Enables exact fitting prostheses to perfectly fit the stump or whatever. Used in restorative dental work today. Mulling building a simple scanner here at the moment (uses a mobile phone strapped to it). Could push your hand into algenate or similar, cast in plaster, 3D scan, make a socket etc. There's a lot more to it than that in terms of comfortable fit etc. How about an exoskeleton for your hand with the missing finger(s) "driven" by the remaining ones? ? Link to comment Share on other sites More sharing options...
Temp Posted December 31, 2021 Share Posted December 31, 2021 14 hours ago, Onoff said: I did the basic 3D model in AutoCAD and exported as an STL. My lad tweaked it and added the chequering in Fusion 360 I think. Looks cool. The way I would do it in Fusion 360 (or any other cad) is to design one dimple then use the pattern tool to create a grid of dimples. It's the same tool used to make a line or rectangular pattern of identical holes. Link to comment Share on other sites More sharing options...
Onoff Posted December 31, 2021 Author Share Posted December 31, 2021 9 hours ago, Temp said: Looks cool. The way I would do it in Fusion 360 (or any other cad) is to design one dimple then use the pattern tool to create a grid of dimples. It's the same tool used to make a line or rectangular pattern of identical holes. Think he extruded a line of triangles on the X axis, then the same on the Y. To get like a "mat" of pyramids. Link to comment Share on other sites More sharing options...
Temp Posted December 31, 2021 Share Posted December 31, 2021 2 hours ago, Onoff said: Think he extruded a line of triangles on the X axis, then the same on the Y. To get like a "mat" of pyramids. Yeah that sounds reasonable as well. Link to comment Share on other sites More sharing options...
ToughButterCup Posted December 31, 2021 Share Posted December 31, 2021 (edited) 15 hours ago, Onoff said: .... How about an exoskeleton for your hand with the missing finger(s) "driven" by the remaining ones? ? Imagine my reaction when I found this: https://www.youtube.com/watch?v=i1TkiN309_4 And then imagine my disappointment when, delving deeper into the background and contatcting the development team, I find that the only interest they had was in securing more funding for their project. The outcome for people who might need the product(s) was of no concern at all. And we all need six fingers per hand don't we? Edited December 31, 2021 by ToughButterCup Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now