Forum: Construction Equipment Tech
11-03-2016, 02:25 PM
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Replies: 3
Views: 2,603
Re: RC4WD Pump question
Thanks for your replies, both good advice, I have decided to mount the pump direct to the motor and control with the esc.
Terry
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Forum: Construction Equipment Tech
10-30-2016, 08:09 PM
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Replies: 3
Views: 2,603
RC4WD Pump question
Hi I purchased the pump sold by rc4wd, they apparently use them in the excavator sold by them, my problem is the output shaft on these pumps sticks out 3/16", I know some of you use these, how do you...
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Forum: Construction Equipment Tech
09-27-2016, 02:16 PM
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Replies: 2
Views: 1,917
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Forum: Construction Equipment Tech
09-25-2016, 11:40 PM
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Replies: 2
Views: 1,917
Question for trucker47 re pump
Hi, on one of your posts you show a hyd pump you will be using on your 966 build. Can you tell me where you obtained the pump and if it has been up to running your hydros? I am putting together the...
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Forum: Construction Equipment Tech
09-14-2016, 02:12 PM
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Replies: 7
Views: 2,019
Re: Need pump motor help
Thanks for your reply rimrock, good info, I am attempting to make my own pump, will post the results.
Terry
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Forum: Construction Equipment Tech
09-12-2016, 01:47 PM
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Replies: 7
Views: 2,019
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Forum: Construction Equipment Tech
09-11-2016, 05:48 PM
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Replies: 7
Views: 2,019
Re: Need pump motor help
Thanks for your reply bigford, that is a nice set up but too rich for my project. What motor do they use ?
Terry
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Forum: Construction Equipment Tech
09-11-2016, 02:50 PM
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Replies: 7
Views: 2,019
Need pump motor help
Can anyone enlighten me on what motor to buy for a hyd pump? I am scratch building a cat 330b 1/14 scale, have the valve body built and am working on a pump. I read on one of the posts by someone...
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Forum: Construction Equipment Tech
08-25-2016, 12:22 AM
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Replies: 10
Views: 2,841
Re: Electrical question
Thanks for the heads up on the esc, I didn't purchase from robot shop, but I will hook one up and see what it does.
Terry
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Forum: Construction Equipment Tech
08-21-2016, 03:08 PM
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Replies: 10
Views: 2,841
Re: Electrical question
Thanks for your help Stein, I think I am going to buy a separate bec and disable the red wires on the esc. That way I will be covered.
Terry
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Forum: Construction Equipment Tech
08-20-2016, 09:06 PM
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Replies: 10
Views: 2,841
Re: Electrical question
Thanks Stein, the ones I have are "Proboat" they list BEC output as 6vdc,1 amp max. forward current 50amps reverse 20amps, not expensive.
Terry
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Forum: Construction Equipment Tech
08-20-2016, 01:30 PM
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Replies: 10
Views: 2,841
Re: Electrical question
Thanks for your reply, I was not sure about using esc for receiver power.
Appreciate your input.
Terry
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Forum: Construction Equipment Tech
08-19-2016, 03:25 PM
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Replies: 10
Views: 2,841
Electrical question
Hi, I am scratch building a cat 330b, I have two track motors with two esc, do I use two channels for control or is there a better way. I am using an eight channel Futaba radio, it has several mixes...
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Forum: Construction Equipment Tech
08-16-2016, 02:09 PM
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Replies: 6
Views: 3,092
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Forum: Construction Equipment Tech
08-14-2016, 08:16 PM
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Replies: 6
Views: 3,092
Need help with fittings please.
I am building a 4 valve block for my excavator, it is almost the same one shown on this site earlier, my problem is the ports to go to the cyls are only about 3/8" apart center to center. I have...
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Forum: Construction Equipment
08-14-2016, 01:37 AM
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Replies: 3
Views: 2,905
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Forum: Construction Equipment
08-13-2016, 05:14 PM
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Replies: 3
Views: 2,905
First try at scratch build
First attempt at scratch building anything. Be kind.
http://i764.photobucket.com/albums/xx284/photo21/th_DSCN1280.jpg (http://s764.photobucket.com/user/photo21/media/DSCN1280.jpg.html)
...
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Forum: Construction Equipment Tech
08-01-2016, 03:25 PM
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Replies: 0
Views: 1,065
looking for suggestions
Hi, if you were scratch building a 1/14 size cat 330b and you were hoping to make all your hydraulics yourself, what would you use (size) for tubing, fittings etc. from pump to valve to cylinders?...
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Forum: Construction Equipment Tech
07-28-2016, 12:43 AM
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Replies: 3
Views: 1,505
Re: Looking for sources from exp builders
Thanks for your help guys, I am working on a four position rotary valve with the help of pictures posted by you RCP57 and others, I am considering a shot at a pump next. RC farmer, every time i try...
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Forum: Construction Equipment Tech
07-27-2016, 11:11 PM
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Replies: 3
Views: 1,505
Looking for sources from exp builders
Hi I am working slowly on a 1/14 ish Cat 330b. I am looking for help finding the type of fittings you guys are using on your valve bodies to cyl etc. I am preferably looking for push to lock type,...
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Forum: Construction Equipment Tech
07-19-2016, 02:07 PM
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Replies: 2
Views: 1,109
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Forum: Construction Equipment Tech
07-18-2016, 03:37 PM
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Replies: 2
Views: 1,109
hyd cyl measurement
When building or ordering cyls for an excavator, how do you measure?
Would you measure from mount pin to pin in the closed and extended position or is there a better way? I am looking at Clippard...
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Forum: Construction Equipment Tech
07-03-2016, 07:15 PM
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Replies: 9
Views: 4,572
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Forum: Construction Equipment Tech
07-02-2016, 04:07 PM
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Replies: 9
Views: 4,572
Re: Hydraulics
Thanks for your replies, I do have a mill, lathe etc. and some experience using same. I was only looking for material, sizes etc.
Nothing ventured nothing gained.
Terry
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Forum: Construction Equipment Tech
07-01-2016, 02:12 PM
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Replies: 9
Views: 4,572
Hydraulics
Hi, I am scratch building a Cat 330b, 1/14 or close. I am going to take a shot at doing my own hydraulics, starting with the cyls. my questions are what type of material to use (brass s/s etc.) and...
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