Search found 9 matches

by qeuker
Thu Jul 29, 2021 1:43 pm
Forum: General Discussion
Topic: DIY pancake slip ring
Replies: 16
Views: 6784

Re: DIY pancake slip ring

thanks again haklesup Alas if I disappoint I have no workshop. Nor could I justify such tooling expenses. I have to do everything with material clamped between my knees and hacksaw ! . Hoping this will just be a pair of scissors on the kitchen worktop LOL Showing promise with the reclaimed relay con...
by qeuker
Wed Jul 28, 2021 10:58 am
Forum: General Discussion
Topic: DIY pancake slip ring
Replies: 16
Views: 6784

Re: DIY pancake slip ring

hello haklesup Thanks. OK we are half way there to our DIY /Nuts and Volts How to ? quest on the subject with your contribution . Hope my order for CU beryl roll arrives sometime soon from China ... Oops You comment It can be heat treated to make it springy... Oh hope it was already springy LOL Stil...
by qeuker
Tue Jul 27, 2021 3:22 am
Forum: General Discussion
Topic: DIY pancake slip ring
Replies: 16
Views: 6784

Re: DIY pancake slip ring Unsolved yet Study ?

thanks again all. Do we need a separate study forum for this ?? The quest is this : What material is used for sprung electrical contacts and where can you buy it ? How little we seem to know of the material used for this most common and ancient method of transmitting electrical power It is all aroun...
by qeuker
Thu Jul 15, 2021 3:21 am
Forum: General Discussion
Topic: DIY pancake slip ring
Replies: 16
Views: 6784

Re: DIY pancake slip ring

Guys I guess time to give up Still no cigar . Researched " sprung electrical contact" Many learned phd articles nothing practical Taken a chance on a roll of something coming from china Maybe this is it ... Maybe we should commission a "practical guide to sprung electrical contacts in robotics" Noth...
by qeuker
Sat Jul 10, 2021 9:51 am
Forum: General Discussion
Topic: DIY pancake slip ring
Replies: 16
Views: 6784

Re: DIY pancake slip ring

ps : I looked at the ball contacts .. woudl heve been godd BUT the smallest one they make comes in a 10mm or so tube sprung loaded
Have tried to use carbon brush but so difficult to mount ( spring load ) and wouldn't last long with just a 4mm or so depth .
by qeuker
Sat Jul 10, 2021 9:46 am
Forum: General Discussion
Topic: DIY pancake slip ring
Replies: 16
Views: 6784

Re: DIY pancake slip ring

Mr Janitor I just love the ingenuity of the suggestions still coming in Thank you so much and YEP there is a ready made stator 4 channel and the car(s) would make the rotor and even have the little motor in them . I'm thinking if I can adapt The radius of the stator with HO gauge would be far too bi...
by qeuker
Sat Jul 10, 2021 4:13 am
Forum: General Discussion
Topic: DIY pancake slip ring
Replies: 16
Views: 6784

Re: DIY pancake slip ring Cell phone charger

Hello Jwax thanks you so much suggestion cell phone charging concept " Power transfer to jump the gap " I slept on that.. A "lazy Susan" levitated ? Sadly I cannot see how that could achieve rotation of a disc. At least not without re jigging -inventing the synch / stepper motor. ? If you think of a...
by qeuker
Mon Jul 05, 2021 9:01 am
Forum: General Discussion
Topic: off grid solar project
Replies: 10
Views: 4908

Re: off grid solar project

Hello considering the same Can anyone help unanswered questions: Design of solar panels vs charger 12V system 1. Seems eg If you buy a single 110W panel nomnal 12V THEN you will be very disappointed in winter/ no sun as insufficient voltage generated for teh charge controller to work ? So we need a ...
by qeuker
Sun Jul 04, 2021 12:44 pm
Forum: General Discussion
Topic: DIY pancake slip ring
Replies: 16
Views: 6784

Re: DIY pancake slip ring

guys pardon delay response May I please thank all who have responded I will pursue all the links you have given to find that material Yes there was a similar on Robot shop but that seems abandoned . A little more on the project It HAS To be a Pancake (Flat profile) slip ring for this application Fla...