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Author Topic: Water Jet Drives & 3D Printing  (Read 26002 times)

Martin (Admin)

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Re: Water Jet Drives & 3D Printing
« Reply #175 on: August 26, 2017, 02:09:26 PM »


Could you set up the Tx or ESC to give, say, a one second pause between forward and reverse to allow the bucket to move?
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IKB

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Re: Water Jet Drives & 3D Printing
« Reply #176 on: August 26, 2017, 03:07:21 PM »

Hi Martin,


I'm sure it is possible with a modern computerised TX, but not with my old school F14, plus, who wouldn't want working hydraulics on their boat?  O0


Alex
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richald

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Re: Water Jet Drives & 3D Printing
« Reply #177 on: August 26, 2017, 04:12:46 PM »

Oil try it if it works . . . :P

Richard
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IKB

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Re: Water Jet Drives & 3D Printing
« Reply #178 on: August 26, 2017, 04:58:14 PM »

Groan, yes Richard, very drole  :((
Planning to have new sysetm installed and tedt next club sunday, how's the race prep of your 500 going?


Alex
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richald

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Re: Water Jet Drives & 3D Printing
« Reply #179 on: August 26, 2017, 05:18:03 PM »

It was either that or Oil get me coat!

Don't want to divert/hijack your thread so will PM you

Richard
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Martin (Admin)

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Re: Water Jet Drives & 3D Printing
« Reply #180 on: August 26, 2017, 06:55:18 PM »


I had a Lego technic set with hydraulics, there weren't very efficient.... what about cycle hydraulic brakes .... or are they way too expensive?

.... medical syringes?!
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bfgstew

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Re: Water Jet Drives & 3D Printing
« Reply #181 on: August 26, 2017, 07:06:32 PM »

Wheelspin models have a set of shocks (spring and oil filled), think about 15 a pair. Got to be better than Lego methinks?


Stewart
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Re: Water Jet Drives & 3D Printing
« Reply #182 on: August 26, 2017, 07:24:13 PM »

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IKB

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Re: Water Jet Drives & 3D Printing
« Reply #184 on: August 26, 2017, 08:37:32 PM »

Hi Guys,


Answers below:


  • Martin - Bike hydraulics are really expensive and designed for a very specific purpose,s o very hard to adapt, but nice idea
  • Stewart - The shocks may be worth looking at as they are essentially miniature rams, but for the time being I am going to try and find an off the shelf solution with builtin ports
  • Grendel - I have seen some very similat to this and they may well be purchased in future for another prototype, I am keen to see if the Lego ones can be adapted as they are the perfect size for my application
Alex
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grendel

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Re: Water Jet Drives & 3D Printing
« Reply #185 on: August 26, 2017, 10:20:23 PM »

http://www.nzmeccano.com/image-116933
how about the meccano hydraulics on their new John deer excavator, these have water as an operating medium.
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IKB

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Re: Water Jet Drives & 3D Printing
« Reply #186 on: August 26, 2017, 10:25:19 PM »

Hi Grendel,


That is essentially the idea I am going for, except a servo will be doing the job of actuating the cylinders


Alex
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IKB

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Re: Water Jet Drives & 3D Printing
« Reply #187 on: October 20, 2017, 06:41:10 PM »

Hi Guys,


Quick update to explain my recent absence, well work basically, well that and with BMBS having built a storming rock crawling track recently, I have kind of got caught up in all the excitement of new things to do, plus as I type I am on site in Riyadh for 3 weeks for work, but fear not, the jet boat will return, I am currently trying to iron out the kinks from the latest reversing mechanism and then there will be updates.


Alex
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