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Old 07-15-2015, 07:45 AM
Rvjimd's Avatar
Rvjimd Rvjimd is offline
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Default Re: Dragline Crawler Build

Thanks guys!

Ya, Jared, you got it right on the truck driver. I was cracking up when I watched the video the first time. It was like I was sleeping as I swung around and clanged into his truck.

If I had a fairlead on the drag rope it wouldn't try to boom up when the rope get stuck on the track. My current rope path goes around two pulleys low on the boom so when it pulls hard it booms up

The chain is from servo city. It is .25" plastic and I used their plastic sprockets. It comes in a little bag with all the parts loose and you have to snap the links together. I got lucky with the slack, I didn't make any adjustment allowance in the drive tumbler or motor mount. I could put on a smaller tumbler sprocket if needed but I was able to pull it together with needle foreseps and pop the links together. On one side I removed the pin from the tumbler and assembled the chain and then slid the pin in place. I already had some standard steel chain bit the plastic stuff is going to work good and is munched easier to work with.

Jim
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Old 07-15-2015, 08:59 AM
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9W Monighan 9W Monighan is offline
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Default Re: Dragline Crawler Build

Looking good Jim. We could bind that up to my controls next month.
Anyhow, Try changing the host chain length and dump cable length. I noticed the drag chains not pulling like they should because of the dump rope. Just some minor experimenting you will be able to dial it in I'm sure.
There seems to be an art to getting a bucket to work correctly as I had found out with mine.
Next project would be to build a fairlead to get the drag rope out away from the track.
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