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Refurb my Atlas

The mitre gear that drives the cross feed, rides on the feed screw with an integral key that looks to be worn down to just a sliver. I will try to build it back up with some Belzona or maybe some Loctite Metal Magic epoxy. I'll take some pics as I prep and apply and finish with needle files. .............................................Chawbeef (Daniel)
I would consider chucking it and boring what's left of the key out. Or file it, not much there. Broach a new key way and silver solder the key in place.
 
My carriage crawled to a stop one day a couple of years ago.
This is what I found, and a broken taper pin was the culprit.
The lead screw can't carry swarf into the apron anymore because I have shields on the screw now. The lead screw stays clean and wet.
 

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I would consider chucking it and boring what's left of the key out. Or file it, not much there. Broach a new key way and silver solder the key in place.

That would work if I had the machinery to do that. All I have is ingenuity and a handful of files. We will see how this works out. .....................................Daniel
 
I think I seen crossfeed gears printed out ABS some where. Let me see if I can find the STL files.

Edit: found a set here.... https://bmpartstech.com/product/new...-crossfeed-repair-kit-3d-printed-abs-plastic/

Not cheap, but I would think that the STL file for those has to be out there somewhere.

Thank you Perry, I will keep that in mind. Please excuse my ignorance for not knowing what an STL file is.??? Also if those printed gears are made of ABS plastic I think they would not be subjected to a lot of stress. Perhaps my epoxy key will work as well. This is a labor of love for me right now and I am a bugger for trying things I can cook up in my melon. Cheers..............................Daniel
 
Thank you Perry, I will keep that in mind. Please excuse my ignorance for not knowing what an STL file is.??? Also if those printed gears are made of ABS plastic I think they would not be subjected to a lot of stress. Perhaps my epoxy key will work as well. This is a labor of love for me right now and I am a bugger for trying things I can cook up in my melon. Cheers..............................Daniel
STL file is a stereolithography file which is a CAD file for a 3 dimensional part

If you buy the file for 100 bucks you can print the part.

However, ebay has the printed part for 44 USD and metal originals for 100-120 bucks.

I'd make you a 3d file if you could provide some measurements. A 3d file can be used to print a part for lost pla casting in aluminum or brass
 
STL file is a stereolithography file which is a CAD file for a 3 dimensional part

If you buy the file for 100 bucks you can print the part.

However, ebay has the printed part for 44 USD and metal originals for 100-120 bucks.

I'd make you a 3d file if you could provide some measurements. A 3d file can be used to print a part for lost pla casting in aluminum or brass
Wow the knowledge here is amazing. I'm unsure if this old dog can catch up. It may be some time until I make a chip or two with my 10-F. I feel I am in the stone age.................................Daniel
 
I'd make you a 3d file if you could provide some measurements. A 3d file can be used to print a part for lost pla casting in aluminum or brass
I've heard that some people (Mr. Pete) have used gears printed in PLA for the change gears on an Atlas. Not sure about this application, but if you have or know someone with a 3D printer, for the dollar worth of plastic it would take you could always try.
 
If you can get the model abs would be worth a try, in my research tho ideally youd want glass fiber nylon for it. I want to try that someday, but that filament is pricey.
Surely theres a generic openscad gear script that might do bevels?
 
Thank you Perry, I will keep that in mind. Please excuse my ignorance for not knowing what an STL file is.??? Also if those printed gears are made of ABS plastic I think they would not be subjected to a lot of stress. Perhaps my epoxy key will work as well. This is a labor of love for me right now and I am a bugger for trying things I can cook up in my melon. Cheers..............................Daniel
Daniel, as the guys have mentioned the STL file is what a 3D printer can use to actually print the part. I have found that if someone is selling the printed item online, there is most likely a free STL file online somewhere.

Took a little look around this evening and found this on ebay.
Interesting to read his comments in the description.

I think it is the same $44.00 one Torontobuilder mentioned.

I also took a look around for the actual blueprints for the 341-051 gear. Those would give you all the dimensions to easily draw it up in a CAD program and then create your own STL file. No joy...yet.

I'm in Calgary, but if you do find the STL for it, I would print it up and send (maybe not....lol...Canada Post strike) it out to you.

From reading the original was made from Zamak and the ABS would be more than strong enough to replace it.

Cheers, P
 
Daniel,
Taking a look at that ebay ad I noted the shaft of the gear rides in a fitting.

s-l1600.jpg
s-l1600.jpg

A fix for your gear might be to drill it and add a few brass pins along the shaft of the gear that is inside the fitting. The pins would be held between the lead screw groove and the outer fitting.


Just throwing out ideas. I'm sure the guys will expand on this to give you an even better fix.
 
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