G2STAR
Plastic
- Joined
- Jun 30, 2019
Life has been very chaotic and fluid lately, yet I have to replace two very important parts I can not find after months of spare time searching for. I believe I am the third owner of this Brown & Sharpe, Ford being the 1st. I have made 12 TPI bolts before and have never tried internal threads, probably because I don't have that type of measuring tools or knowledge.
This morning I finally found a bolt (From the same machine.) that is exactly alike and an accessible internal thread on the casting base. Looks like I'm not allowed to post images yet...
The Pat. date is 1884 yet probably 110 years old, approx. 3 tons, and a Horizontal Mill. I have it modified to hold a Vertical Mill Head on the back side of the arbor support and can not tighten said cylindrical support.
My guess is to get some 1.25" 1018 Cold Roll Steel Hex Bar and give it my best shot. It has been some time since I've come close to such a machining project. How can I make a device to know when to start slowing down to the right fit with the new found bolt. I have some tools but nothing to check internal equaling external. Maybe a modified ring clip puller with a sliding gauge or do I have to even worry about it and guess between the major and minor at 29.5 degrees with the compound indicator... Then guess more till the bolt fits correctly...
I need some help. The minor on the bolt is rounded. There must be a ingenious practical way to get the right fit for two nuts without testing on the only matching bolt over and over or buying expensive tools.
This morning I finally found a bolt (From the same machine.) that is exactly alike and an accessible internal thread on the casting base. Looks like I'm not allowed to post images yet...
The Pat. date is 1884 yet probably 110 years old, approx. 3 tons, and a Horizontal Mill. I have it modified to hold a Vertical Mill Head on the back side of the arbor support and can not tighten said cylindrical support.
My guess is to get some 1.25" 1018 Cold Roll Steel Hex Bar and give it my best shot. It has been some time since I've come close to such a machining project. How can I make a device to know when to start slowing down to the right fit with the new found bolt. I have some tools but nothing to check internal equaling external. Maybe a modified ring clip puller with a sliding gauge or do I have to even worry about it and guess between the major and minor at 29.5 degrees with the compound indicator... Then guess more till the bolt fits correctly...
I need some help. The minor on the bolt is rounded. There must be a ingenious practical way to get the right fit for two nuts without testing on the only matching bolt over and over or buying expensive tools.