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  #21  
Old 08-27-2017, 02:20 PM
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frizzen frizzen is offline
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Default Re: Bruder 574 RC conversion weekend project!

The ebay page on motors left out overall length of motors?

About what kind of distance were you at hub to hub?
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  #22  
Old 08-27-2017, 02:33 PM
SteinHDan SteinHDan is offline
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Default Re: Bruder 574 RC conversion weekend project!

I also did a bit of cleanup work. The initial weekend project was done in a hurry, and I didn't have all the parts I wanted to use. I ordered them, though, and I got them a bit later. I've now installed them:


For the through-going M3 bolts, I've got these black socket head very long bolts:
- M3x80mm, black: http://www.ebay.com/itm/302135308656




For the bucket cylinder, I got one 4x20mm pin and one 4x25mm pin:
- Steel dovel pins: http://www.ebay.com/itm/291965605757






For the rear pivot, I got a 6x80mm pin:
- Steel dovel pins: http://www.ebay.com/itm/291965605757






Finally, all the pins will get r-clips, but I've not received those yet:
- R-clip, 1:16 scale: http://www.ebay.com/itm/252099772994



Stein :-)
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  #23  
Old 08-27-2017, 04:19 PM
skeeter skeeter is offline
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Default Re: Bruder 574 RC conversion weekend project!

The parts that keep the front actuators from sliding/moving inwards, do you recall what size those were?
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  #24  
Old 08-27-2017, 04:34 PM
SteinHDan SteinHDan is offline
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Default Re: Bruder 574 RC conversion weekend project!

Hi Skeeter,


I just used whatever I had laying around. It was this one:
- 4x4mm coupling: http://www.ebay.com/itm/231268270917

Later I bought these, which I would rather have used:
- 4mm stop collar: http://www.ebay.com/itm/332159040679


Best regards,
Stein :-)
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  #25  
Old 08-27-2017, 04:41 PM
SteinHDan SteinHDan is offline
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Default Re: Bruder 574 RC conversion weekend project!

Quote:
Originally Posted by frizzen View Post
The ebay page on motors left out overall length of motors?

About what kind of distance were you at hub to hub?
It's a little difficult to measure when it's in one piece. I'll try to measure it for you the next time I have it dismantled.

I think I would actually use motors with a little higher RPM. I chose 24rpm because I was afraid the steering would be bad if the motor wasn't powerful enough, but the motors are more than powerful enough and the loader is a little bit slow with 24rpm motors. Maybe 32rpm or something like that is a better fit for this model.


Best regards,
Stein :-)

Last edited by SteinHDan; 08-27-2017 at 04:56 PM.
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  #26  
Old 08-27-2017, 05:03 PM
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frizzen frizzen is offline
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Default Re: Bruder 574 RC conversion weekend project!

No problem, i'm just trying to steal ideas for a completely different kind of build. I need to tuck tires (prefer duallys, maybe super singles) under 6" wide fenders, and a slowish but reasonable road speed, 4 motors, probably walking beam suspension.

Thanks again for open sourcing the build, it's really informative!
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  #27  
Old 08-27-2017, 05:06 PM
SteinHDan SteinHDan is offline
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Default Re: Bruder 574 RC conversion weekend project!

Thanks, Frizzen! :-)

I found another listing on Ebay that included the table of sizes for the different gear boxes:
- http://www.ebay.com/itm/200910274596

For the 24rpm gear box, it's 25mm.


Stein :-)
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  #28  
Old 08-27-2017, 08:09 PM
skeeter skeeter is offline
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Default Re: Bruder 574 RC conversion weekend project!

Quote:
Originally Posted by Rvjimd View Post
Skeeter,

I'm jealous, sounds like a LOT of fun getting to learn and play with a new 3D printer and converting a loader! You should start a build thread including setting up and using the new printer!

Stein,

Thanks again for sharing the files and knowledge!

Jim
There's not much fun setting it up, & learning it. If it weren't for this gentleman, I would be a LONG time before I could print anything useful. Converting the loader I think will be fun

You wouldn't be so jealous if you had the credit card payments for it. I put it on my Fry's Electronics credit card. Their interest rate is Prime, PLUS 27.35%. The printer, & 4 spools of filament, plus a 32GB thumb drive was a touch over $800.oo after taxes. I plan to pay it off in 3-4 months, so that the interest WON'T kill me.

I could do a thread about getting set up, but......every manufacturers models are different. I don't think it'd be very useful. I messed with it for over 6 hours yesterday. Calibrate, make recommended adjustments, Re-Calubrate.......it's a viacious & seems never ending cycle.
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  #29  
Old 08-27-2017, 08:19 PM
skeeter skeeter is offline
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Default Re: Bruder 574 RC conversion weekend project!

Stein, when you say copied, did you 3D scan it, or copied by recreating it in Fusion 360?
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  #30  
Old 08-28-2017, 01:17 AM
skeeter skeeter is offline
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Default Re: Bruder 574 RC conversion weekend project!

Did you use PLA, or ABS filiment to print your parts? I've done the boom cylinder mounts, & they are coming out of my machine slighty sroopy, & slopy(ish). I'm just trying to figure out if I may be using the wrong kind of filament for the way the parts are designed.
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  #31  
Old 08-28-2017, 03:43 AM
SteinHDan SteinHDan is offline
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Default Re: Bruder 574 RC conversion weekend project!

Yes, it does take time to get to know 3D printing i general and also the characteristics of your own machine. But if you stick at it, you'll get it.

I always print in ABS, but it should print fine with PLA. It takes a little time to get to know your machine. I also used to calibrate a lot. Now I only do it maybe every 6 months.

There is a very good guide on a lot of different printing problems here:
- https://www.simplify3d.com/support/p...oubleshooting/

Make sure you print the boom cylinder mounts laying on the side (like a donut) and with the smaller opening down (so that you don't get any overhangs).

If it is sroopy / slopy, then maybe the temperature is a bit high or you are extruding too much plastic? Have a look at the guide and see what problem matches your problem the best.

If you still have problems printing the thin walls of the part, then just download the Fusion 360 file and push out the walls maybe 0.5mm on each side to get thicker walls. The part should still fit fine. Then select and save as .stl and retry the print.


Best regards,
Stein :-)
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  #32  
Old 08-28-2017, 03:48 AM
SteinHDan SteinHDan is offline
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Default Re: Bruder 574 RC conversion weekend project!

Quote:
Originally Posted by skeeter View Post
Stein, when you say copied, did you 3D scan it, or copied by recreating it in Fusion 360?
I put the original part on a sheet of paper and photographed it from directly above (perpendicular to the sheet plane).

Then I import the image into fusion 360 as an canvas image and project it on a plane. I resize it to match the length of the original part.

Then I trace the shape using the sketch tool in fusion 360 and finally extrude the part to the correct thickness. Export to STL and print.


Stein :-)
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  #33  
Old 08-28-2017, 07:39 AM
skeeter skeeter is offline
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Default Re: Bruder 574 RC conversion weekend project!

Thank-You, sir for the help. I really appreciate it.
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  #34  
Old 08-28-2017, 01:21 PM
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Default Re: Bruder 574 RC conversion weekend project!

Excellent conversion! I really like how you handled the steering, I would have never of thought of that. Also that you included links to all the parts you used. Overall well done.
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  #35  
Old 08-29-2017, 01:55 AM
skeeter skeeter is offline
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Default Re: Bruder 574 RC conversion weekend project!

Quote:
Originally Posted by Rvjimd View Post
Skeeter,

I'm jealous, sounds like a LOT of fun getting to learn and play with a new 3D printer and converting a loader! You should start a build thread including setting up and using the new printer!

Stein,

Thanks again for sharing the files and knowledge!

Jim
Build thread has been started. Here's the link
http://www.rctruckandconstruction.co...697#post157697
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  #36  
Old 05-21-2018, 01:27 PM
SteinHDan SteinHDan is offline
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Default Re: Bruder 574 RC conversion weekend project!

I added some weight to the wheels to give the loader some more traction:





Test:



https://youtu.be/De2iEjEHIEA
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  #37  
Old 07-06-2018, 01:15 PM
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CustomCrawlerz CustomCrawlerz is offline
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Post Re: Bruder 574 RC conversion weekend project!

Very nice looking build Sir.. Oh the possibilities with having a 3D printer... I have not completed any of my Loader builds yet... But, soon hopefully.
www.customcrawlerz.com
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  #38  
Old 09-01-2018, 04:35 PM
SteinHDan SteinHDan is offline
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Default Re: Bruder 574 RC conversion weekend project!

I got some requests for export to other formats, so here you go, STEP and IGES:



- STEP: http://d1t2tbzmskak12.cloudfront.net...oader-v13.iges
- IGES: http://d1t2tbzmskak12.cloudfront.net...oader-v13.iges


Best regards,
Stein :-)
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  #39  
Old 09-01-2018, 08:07 PM
Zabco Zabco is offline
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Default Re: Bruder 574 RC conversion weekend project!

I have been working on a Bruder 574 conversion based on your method and 3D print files. I just wanted to say how impressed I have been with precision and fit of your parts, you have done a very good job with the design. In your videos it appears that you have also added working headlights and flashing beacon to yours. I would like to ask how you ran the wires up through the cab to get to those locations? Again, very nice job.
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  #40  
Old 09-02-2018, 05:03 PM
SteinHDan SteinHDan is offline
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Default Re: Bruder 574 RC conversion weekend project!

Hi Zabco!

I actually ran those lights two years before I did the conversion. I don't have a picture, but I can try to take one when I have it in pieces the next time. It's really simple, almost as if Bruder have been thinking about us convertors :-)
Just pop off the roof, and you will see what I mean.

Best regards,
Stein :-)
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