Homemade Reduced Weight Bar

[Jon1212]

Funny thing(well interesting anyway), whilst getting ready for cutting the last two slugs, I decided to try one of the cutters I ordered via eBay(after I broke the nice Relton from Jason aka USMC615), from Ching Chong Shama Lama Bing Bong(Guandong, China). I just got barely through the pilot hole when the pilot bit snapped in half. Oh well, there went a few bucks. I used a punch to get the rest of the bit out, intalled a new Chinese cutter, and man was I surprised at how well the actual cutting head performed. I had both slugs cut in less than five minutes.

 

[dall]

Funny thing(well interesting anyway), whilst getting ready for cutting the last two slugs, I decided to try one of the cutters I ordered via eBay(after I broke the nice Relton from Jason aka USMC615), from Ching Chong Shama Lama Bing Bong(Guandong, China). I just got barely through the pilot hole when the pilot bit snapped in half. Oh well, there went a few bucks. I used a punch to get the rest of the bit out, intalled a new Chinese cutter, and man was I surprised at how well the actual cutting head performed. I had both slugs cut in less than five minutes.

carbide hole saw bits i have some from there and they do good but like you said pilot bits break easy

 

[Mastermind]

Funny thing(well interesting anyway), whilst getting ready for cutting the last two slugs, I decided to try one of the cutters I ordered via eBay(after I broke the nice Relton from Jason aka USMC615), from Ching Chong Shama Lama Bing Bong(Guandong, China). I just got barely through the pilot hole when the pilot bit snapped in half. Oh well, there went a few bucks. I used a punch to get the rest of the bit out, intalled a new Chinese cutter, and man was I surprised at how well the actual cutting head performed. I had both slugs cut in less than five minutes.

Slugs.....you said slugs....

 

[Jon1212]

Slugs.....you said slugs....

Yes, I did. I 'spose I could call them really thick washers.....

 

[Mastermind]

So.....is my bar done yet?

 

[Jon1212]

So.....is my bar done yet?

Almost. @thomas1 is my freight forwarder, so you should have it in time for your TN GTG in 2019.......

 

[Mastermind]

T1 shipping service.....AKA slow boat to nowhere.....

 

[Wagnerwerks]

carbide hole saw bits i have some from there and they do good but like you said pilot bits break easy

If you can vise it and lock it in, it should start fairly easy with minimal chatter? I've cut many holes , but not with carbide.

 

[huskihl]

Jon, I think a file (maybe coarse) would make your epoxy flatter and more level with the bar. The flexible pad on an orbital may create low spots before the high spots are gone.

 

[Big_6]

Did anyone suggest, Bondo?
Belt sand the finished product and be done. (This has been used on wood and metal doors. )

 

[Jon1212]

Did anyone suggest, Bondo?
Belt sand the finished product and be done. (This has been used on wood and metal doors. )

You know, I thought about that when I was at Harbor Freight, but was unsure what role paint plays in the durability of Bondo.

 

[Big_6]

The bondo needs paint.
It is not waterproof. Just like your garage floor, the finish will be well served.
That epoxy spray paint isn't cheap.
This is my 32" bar project before the Ct. GTG. with Paragon.

 

[Jon1212]

Saw polishers unite! The bondo needs paint. That epoxy spray paint ain't cheap. This is my 32" bar project before the Ct. GTG. with Paragon.

Huh?

 

[Jon1212]

@Big_6 thanks for the edit, and clarification. As I suspected, paint would be required, and we all know how well paint adheres to bars.......until it gets used a half dozen times.

 

[Big_6]

John 12, paint sticks to bondo. Hopefully, epoxy paint will hold up.

 

[Deets066]

I tried cutting the tail off of a bar with a mag drill and big hoagan bit. Lol Didn't work so well

 

[Adirondackstihl]

I tried cutting the tail off of a bar with a mag drill and big hoagan bit. Lol Didn't work so well

Kept catching the rail?

 

[Deets066]

Hss cutter started smokin before I came remotely close to gettin anywhere

 

[Deets066]

Here's the bar, I thought I'd try the mag drill just to see if it would work.

I'm going to shorten up about 3-4" for better transition when running big sprockets

 

[Jon1212]

John 12, paint sticks to bondo. Hopefully, epoxy paint will hold up.

I know paint sticks to Bondo, as evidenced by its use on vehicles. However, vehicles generally aren't subjected to the same physicals rigours of a chainsaw guide bar. Once the paint on the bar is disturbed to the edge of the Bondo, I think it's pretty much game over.