- Joined
- Oct 30, 2019
- Messages
- 206
Well, today I used my lathe to get started installing the flooring in our living room.
![IMG_20231219_175445792.jpg IMG_20231219_175445792.jpg](https://www.hobby-machinist.com/data/attachments/428/428566-6d3188b135538240d17e39ecc2ba212b.jpg)
The issue that needed to be solved is that the last course of the existing flooring (dining room) ran parallel to the doorway into the living room, and because the living room was carpet the flooring installers cut the tongue off the last board in the doorway.
Now that I'm installing more T&G flooring in the living room, I need a groove or tongue to start from the dining room. Unfortunately I cannot reasonably pry up and replace the last course from the dining room without removing the casing that wraps the wide doorway between the two rooms.
![IMG_20231219_180908015.jpg IMG_20231219_180908015.jpg](https://www.hobby-machinist.com/data/attachments/428/428567-43716a55a09657ae304c79cdb37ec80f.jpg)
![IMG_20231219_180927623.jpg IMG_20231219_180927623.jpg](https://www.hobby-machinist.com/data/attachments/428/428576-e2db77cb6ccfa03f7546f2f25cd38f78.jpg)
I figured my next best option, since the living room flooring will run parallel to the existing flooring, is to use the router to cut grooves into the last boards from the dining room. I say "grooves" because it would need to be multiple small grooves between the flooring staples that are installed. Then I would use floating tenons cut to length for each slot.
The issue, however, is that our 1/4" slot cutter for the router has a guide bearing and retainer screw combination that would interfere with the subfloor when trying to cut the slot in-place.
![IMG_20231220_151421239.jpg IMG_20231220_151421239.jpg](https://www.hobby-machinist.com/data/attachments/428/428573-bef39bee883efe5f338687b789458a1b.jpg)
What about making a brass guide bushing that would press onto the boss/hub where the bearing would go?
![IMG_20231220_151316980.jpg IMG_20231220_151316980.jpg](https://www.hobby-machinist.com/data/attachments/428/428564-dac24b93eab957d65fd2f0bfc76307f3.jpg)
I parted off a small piece of 3/4" brass with a hole drilled just undersize for the boss, and pressed it on
Then I chucked the entire cutter up in a collet chuck so that I could bring the thickness down exactly to the boss' height, as well as skim the OD to ensure concentricity with the cutter.
![IMG_20231220_115649539.jpg IMG_20231220_115649539.jpg](https://www.hobby-machinist.com/data/attachments/428/428570-d7c04964656cb47dcaf360f0b9942856.jpg)
This made a nice mess on the underlayment I had just put down, but did work and I made some floating tenons that were a snug fit in the groove to form a new tongue
![IMG_20231220_121904902_HDR.jpg IMG_20231220_121904902_HDR.jpg](https://www.hobby-machinist.com/data/attachments/428/428574-1a55a7a56b527f36c9af999b93ad2af6.jpg)
![IMG_20231220_143409091.jpg IMG_20231220_143409091.jpg](https://www.hobby-machinist.com/data/attachments/428/428571-b9b5ff34981ec0960101a4c0ee180d78.jpg)
![IMG_20231220_142531177.jpg IMG_20231220_142531177.jpg](https://www.hobby-machinist.com/data/attachments/428/428575-337688aa97216d33a52e6f5c8ddca434.jpg)
![IMG_20231220_142526386.jpg IMG_20231220_142526386.jpg](https://www.hobby-machinist.com/data/attachments/428/428572-78b1ce77785ad9de1b8ec684ca846290.jpg)
First board in and ready to get going on the rest of the project
![IMG_20231220_143419149.jpg IMG_20231220_143419149.jpg](https://www.hobby-machinist.com/data/attachments/428/428577-ee0094ec6dc8796888540660cc8c9f86.jpg)
Pried the bushing off and I'll keep this in the case of cutters in case a future use case shows up again. If the fit ever gets sloppy I can always locktite it on or make a new one
![IMG_20231220_151433527.jpg IMG_20231220_151433527.jpg](https://www.hobby-machinist.com/data/attachments/428/428569-a6dae28355e2294abed90f0bd8622d96.jpg)
![IMG_20231219_175445792.jpg IMG_20231219_175445792.jpg](https://www.hobby-machinist.com/data/attachments/428/428566-6d3188b135538240d17e39ecc2ba212b.jpg)
The issue that needed to be solved is that the last course of the existing flooring (dining room) ran parallel to the doorway into the living room, and because the living room was carpet the flooring installers cut the tongue off the last board in the doorway.
Now that I'm installing more T&G flooring in the living room, I need a groove or tongue to start from the dining room. Unfortunately I cannot reasonably pry up and replace the last course from the dining room without removing the casing that wraps the wide doorway between the two rooms.
![IMG_20231219_180908015.jpg IMG_20231219_180908015.jpg](https://www.hobby-machinist.com/data/attachments/428/428567-43716a55a09657ae304c79cdb37ec80f.jpg)
![IMG_20231219_180927623.jpg IMG_20231219_180927623.jpg](https://www.hobby-machinist.com/data/attachments/428/428576-e2db77cb6ccfa03f7546f2f25cd38f78.jpg)
I figured my next best option, since the living room flooring will run parallel to the existing flooring, is to use the router to cut grooves into the last boards from the dining room. I say "grooves" because it would need to be multiple small grooves between the flooring staples that are installed. Then I would use floating tenons cut to length for each slot.
The issue, however, is that our 1/4" slot cutter for the router has a guide bearing and retainer screw combination that would interfere with the subfloor when trying to cut the slot in-place.
![IMG_20231220_151421239.jpg IMG_20231220_151421239.jpg](https://www.hobby-machinist.com/data/attachments/428/428573-bef39bee883efe5f338687b789458a1b.jpg)
What about making a brass guide bushing that would press onto the boss/hub where the bearing would go?
![IMG_20231220_151316980.jpg IMG_20231220_151316980.jpg](https://www.hobby-machinist.com/data/attachments/428/428564-dac24b93eab957d65fd2f0bfc76307f3.jpg)
I parted off a small piece of 3/4" brass with a hole drilled just undersize for the boss, and pressed it on
Then I chucked the entire cutter up in a collet chuck so that I could bring the thickness down exactly to the boss' height, as well as skim the OD to ensure concentricity with the cutter.
![IMG_20231220_115649539.jpg IMG_20231220_115649539.jpg](https://www.hobby-machinist.com/data/attachments/428/428570-d7c04964656cb47dcaf360f0b9942856.jpg)
This made a nice mess on the underlayment I had just put down, but did work and I made some floating tenons that were a snug fit in the groove to form a new tongue
![IMG_20231220_121904902_HDR.jpg IMG_20231220_121904902_HDR.jpg](https://www.hobby-machinist.com/data/attachments/428/428574-1a55a7a56b527f36c9af999b93ad2af6.jpg)
![IMG_20231220_143409091.jpg IMG_20231220_143409091.jpg](https://www.hobby-machinist.com/data/attachments/428/428571-b9b5ff34981ec0960101a4c0ee180d78.jpg)
![IMG_20231220_142531177.jpg IMG_20231220_142531177.jpg](https://www.hobby-machinist.com/data/attachments/428/428575-337688aa97216d33a52e6f5c8ddca434.jpg)
![IMG_20231220_142526386.jpg IMG_20231220_142526386.jpg](https://www.hobby-machinist.com/data/attachments/428/428572-78b1ce77785ad9de1b8ec684ca846290.jpg)
First board in and ready to get going on the rest of the project
![IMG_20231220_143419149.jpg IMG_20231220_143419149.jpg](https://www.hobby-machinist.com/data/attachments/428/428577-ee0094ec6dc8796888540660cc8c9f86.jpg)
Pried the bushing off and I'll keep this in the case of cutters in case a future use case shows up again. If the fit ever gets sloppy I can always locktite it on or make a new one
![IMG_20231220_151433527.jpg IMG_20231220_151433527.jpg](https://www.hobby-machinist.com/data/attachments/428/428569-a6dae28355e2294abed90f0bd8622d96.jpg)