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Benchmaster milling machine
- Thread Starter kopcicle
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Very cool! As long as the ways still run true, should be able to crank out some good parts.
What taper collets does it use?
I'd love to have a small knee mill like that in my shop. I'm going to have to do some looking around.
What taper collets does it use?
I'd love to have a small knee mill like that in my shop. I'm going to have to do some looking around.
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Nice find...very nice.
- Thread Starter
- #7
moving day
Brother from another Mother Robbie made the transaction with Chris in San Diego.
I should mention here that before the photos even arrived, I had been on the phone with Chris for not quite two minutes and realized that this was the one. That after the years of waiting this was the right deal, the right person and the right Benchmaster mill.
The packaging was noteworthy in that Robbie got it all into the box and braced the table, removed the handles to prevent damage and delivered it to Fastenal, Blue-Line freight. $181.32 from Sandiego to Tukwila. The box, pallet, and packaging cost more .
Brother from another Mother Robbie made the transaction with Chris in San Diego.
I should mention here that before the photos even arrived, I had been on the phone with Chris for not quite two minutes and realized that this was the one. That after the years of waiting this was the right deal, the right person and the right Benchmaster mill.
The packaging was noteworthy in that Robbie got it all into the box and braced the table, removed the handles to prevent damage and delivered it to Fastenal, Blue-Line freight. $181.32 from Sandiego to Tukwila. The box, pallet, and packaging cost more .
Last Edited:
- Thread Starter
- #10
The plan is
https://www.thomsonlinear.com/en/product/8106-448-022
https://www.mcmaster.com/3405N007/
The weight on the Zed will take care of that backlash
Many Thanks to Mike Freeman.
www.freemansgarage.com
https://www.thomsonlinear.com/en/product/8106-448-022
https://www.mcmaster.com/3405N007/
The weight on the Zed will take care of that backlash
Many Thanks to Mike Freeman.
My Benchmaster CNC Mill
www.freemansgarage.com
- Thread Starter
- #11
Timken 09074 Tapered Roller Bearing
Timken 09194 Race
Timken 15118 Tapered Roller Bearing
Timken 15250 Race
Standard stuff from your local auto supply store.
The seals are the hard part. Here's what I did, starting at the top:
Upper Inner SKF 10111 This was a felt seal sandwiched between the upper bearing race and the housing. The seal rides on the 1" OD bushing that goes under the threaded collar.
The replacement is a lip seal that presses into the top of the casting.
1" shaft x 1.98 bore x .46 thick
National 471744
Upper inner seal. This is a lip seal that rides on the smallest diameter just above the transition to the larger diameter that fits the pulley. I found no seal with the correct OD, so I used one a little larger and hand-ground the OD until it would fit the rough bore. I used a seal that was given me by another member and I was unable to find a seal number on it, but I suspect it was the SKF 7573. This was the most difficult fit. The below are my notes.
SKF 7573 needs mod (National 471567) 1.575" OD
Cast bore 1.525" 11878 oversize OD (National 471354)
TIMken 710154 1.5 OD
Lower inner seal. Original is a metal-clad felt seal sandwiched between the casting and the bearing race. The bore is rough and the horizontal outer surface is not flat.
Cast bore 2.05" x 1.180 shaft
30x52x7 metric seal would work
Nat 223035 is the cross from the SKF
I used a Timken seal which was a loose fit in the bore. I'll come back and add the number when I get back from the shop.
Lower outer seal. This is the biggest diameter seal surrounding the working end. It was the easiest to fit.
SKF 15160 was sourced on ebay and fits perfectly
National 40067S is the crossover number but is not that common
https://www.hobby-machinist.com/threads/new-project-benchmaster-mv-1-mill.31499/
Timken 09194 Race
Timken 15118 Tapered Roller Bearing
Timken 15250 Race
Standard stuff from your local auto supply store.
The seals are the hard part. Here's what I did, starting at the top:
Upper Inner SKF 10111 This was a felt seal sandwiched between the upper bearing race and the housing. The seal rides on the 1" OD bushing that goes under the threaded collar.
The replacement is a lip seal that presses into the top of the casting.
1" shaft x 1.98 bore x .46 thick
National 471744
Upper inner seal. This is a lip seal that rides on the smallest diameter just above the transition to the larger diameter that fits the pulley. I found no seal with the correct OD, so I used one a little larger and hand-ground the OD until it would fit the rough bore. I used a seal that was given me by another member and I was unable to find a seal number on it, but I suspect it was the SKF 7573. This was the most difficult fit. The below are my notes.
SKF 7573 needs mod (National 471567) 1.575" OD
Cast bore 1.525" 11878 oversize OD (National 471354)
TIMken 710154 1.5 OD
Lower inner seal. Original is a metal-clad felt seal sandwiched between the casting and the bearing race. The bore is rough and the horizontal outer surface is not flat.
Cast bore 2.05" x 1.180 shaft
30x52x7 metric seal would work
Nat 223035 is the cross from the SKF
I used a Timken seal which was a loose fit in the bore. I'll come back and add the number when I get back from the shop.
Lower outer seal. This is the biggest diameter seal surrounding the working end. It was the easiest to fit.
SKF 15160 was sourced on ebay and fits perfectly
National 40067S is the crossover number but is not that common
https://www.hobby-machinist.com/threads/new-project-benchmaster-mv-1-mill.31499/
Last Edited:
- Thread Starter
- #12
Last but not least is a bit of a Bridge(port) to far.
http://www.dkpercussion.com/blog/un...m-head-rebuild-for-the-benchmaster-mill-pt-1/
These are not all that uncommon and known as either Bridge-Master or Bench-Ports.
Seems like a fair bit of work for 3 1/2" quill travel. Bridgeport did make a few "H" heads on the "M" pattern. "H" for high speed, up to 12K rpm!
I don't think I'll be going that far as a decent core "M" head is about what I paid for the Benchmaster. Now if one falls from the sky...
http://www.dkpercussion.com/blog/un...m-head-rebuild-for-the-benchmaster-mill-pt-1/
These are not all that uncommon and known as either Bridge-Master or Bench-Ports.
Seems like a fair bit of work for 3 1/2" quill travel. Bridgeport did make a few "H" heads on the "M" pattern. "H" for high speed, up to 12K rpm!
I don't think I'll be going that far as a decent core "M" head is about what I paid for the Benchmaster. Now if one falls from the sky...
- Thread Starter
- #13
meandering interlude.
I'm in Seattle, I have family (brother from another mother, veteran computer hacker) in Imperial Beach CA. The Mill was in San Diego (east county) .
The seller was , well...
In a forum I expressed interest before it was actually for sale. When it did come up for sale, I got a message that it was available. I was a bit floored as it had been months. When I found out I was getting Horizontal AND vertical for the price I was a bit stunned. I was also nearly broke and would be for at least a month.
Then I was on the phone with the seller for all of two minutes and knew that sight unseen this was the machine I wanted. Purchasing online, sight unseen can be a disaster or a godsend. This was everything as advertised and full disclosure.
This phone number remains in my phone to this day. Thank You again and still Chris!
There are stories like Brett's (mrriggs - https://www.gofastforless.com/) where he found one across town for $200.
Then http://www.jomoandco.com/benchmaster-mv-1-restore/ where the wife says "lookie what I found!"
Then there's at least , always one https://www.ebay.com/itm/294967658419?hash=item44ad7147b3:g:GgcAAOSw1AZic637 The link will disappear one day so I'll explain. It's just an antique bench top mill for $4,999,99, plus shipping.
I don't have the pics anymore, but I did see several that weren't worth parting out. I won't go down the list but the worst, you couldn't have saved the column, knee, or table castings. The table was painted and for good reason. "T" nuts had been pulled out of slots in five places, with evidence of a screw bottoming in each one, then Brondo'd and painted over! Broken dovetails everywhere, botched weld repairs, and a piece of all thread for a lead screw. --"They're rare set up like this one. I'm doing you a favor letting it go for what I've got in it" -- $6K meh
Best i can tell you is be ready at a moment's notice. Have the cash and transport ready to go., we have folks if not family all over the country. Fastenal Blue-Lane is your friend even if they don't go east west much. Know what you're getting into. It's a bunch of MT2 tooling in a restricted Zed axis, without a quill, and no spare parts. At best MT2 collets in the spindle will give you around 8". Fortunate that "standard bearings" can be found at Autozone and better bearings , well , use your imagination and credit card.
It really isn't that big a step up (or sideways) for something like a "Millrite MV-1" or the Atlas Clausing small mills. Even the "M" head Bridgeport isn't a huge footprint. The early Enco is another option. Groton made a smaller mill but it seems rare. Lagun as well made a small footprint model. One last mention for the Deckel machines, http://www.lathes.co.uk/deckel/#google_vignette
I've narrowly missed two that were affordable. One went to a very good home. I rigged it out of a basement and crated it for shipping. I made nearly enough from the rigging job to pay for it ;-) It went to a prototype/design shop and a good friend. The other is in the hands of a gun-tuber as I was moving, broke, no room, and couldn't find even $1,200 for an FP2 . Again, I got paid for the rigging and crating. Take a good look at Tony's site. If a Deckel shows up for under $5K with fixtures, attachments and tooling, go to the bank and get it done. It will be your first and last mill. You won't need another.
I'm in Seattle, I have family (brother from another mother, veteran computer hacker) in Imperial Beach CA. The Mill was in San Diego (east county) .
The seller was , well...
In a forum I expressed interest before it was actually for sale. When it did come up for sale, I got a message that it was available. I was a bit floored as it had been months. When I found out I was getting Horizontal AND vertical for the price I was a bit stunned. I was also nearly broke and would be for at least a month.
Then I was on the phone with the seller for all of two minutes and knew that sight unseen this was the machine I wanted. Purchasing online, sight unseen can be a disaster or a godsend. This was everything as advertised and full disclosure.
This phone number remains in my phone to this day. Thank You again and still Chris!
There are stories like Brett's (mrriggs - https://www.gofastforless.com/) where he found one across town for $200.
Then http://www.jomoandco.com/benchmaster-mv-1-restore/ where the wife says "lookie what I found!"
Then there's at least , always one https://www.ebay.com/itm/294967658419?hash=item44ad7147b3:g:GgcAAOSw1AZic637 The link will disappear one day so I'll explain. It's just an antique bench top mill for $4,999,99, plus shipping.
I don't have the pics anymore, but I did see several that weren't worth parting out. I won't go down the list but the worst, you couldn't have saved the column, knee, or table castings. The table was painted and for good reason. "T" nuts had been pulled out of slots in five places, with evidence of a screw bottoming in each one, then Brondo'd and painted over! Broken dovetails everywhere, botched weld repairs, and a piece of all thread for a lead screw. --"They're rare set up like this one. I'm doing you a favor letting it go for what I've got in it" -- $6K meh
Best i can tell you is be ready at a moment's notice. Have the cash and transport ready to go., we have folks if not family all over the country. Fastenal Blue-Lane is your friend even if they don't go east west much. Know what you're getting into. It's a bunch of MT2 tooling in a restricted Zed axis, without a quill, and no spare parts. At best MT2 collets in the spindle will give you around 8". Fortunate that "standard bearings" can be found at Autozone and better bearings , well , use your imagination and credit card.
It really isn't that big a step up (or sideways) for something like a "Millrite MV-1" or the Atlas Clausing small mills. Even the "M" head Bridgeport isn't a huge footprint. The early Enco is another option. Groton made a smaller mill but it seems rare. Lagun as well made a small footprint model. One last mention for the Deckel machines, http://www.lathes.co.uk/deckel/#google_vignette
I've narrowly missed two that were affordable. One went to a very good home. I rigged it out of a basement and crated it for shipping. I made nearly enough from the rigging job to pay for it ;-) It went to a prototype/design shop and a good friend. The other is in the hands of a gun-tuber as I was moving, broke, no room, and couldn't find even $1,200 for an FP2 . Again, I got paid for the rigging and crating. Take a good look at Tony's site. If a Deckel shows up for under $5K with fixtures, attachments and tooling, go to the bank and get it done. It will be your first and last mill. You won't need another.
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Joe
Joe
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I did some automation work at a machine shop in Pinckney, MI, Moehrle Machine Tool, and I swear they had one of those. That, next to the Do-All, got a lot of use every day.
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