- Joined
- Nov 25, 2015
- Messages
- 8,582
I saw a video , I think doubleboost, maybe someone else. They used a Speeder (English for reducer). The English ones are way nicer than the American units. But I'm too cheap to get one and ship it over. At the price I could buy a tapmatic. I bought this one on ebay for $6 a few months ago.
Anyway, the American unit is big, and does not lend itself well to conversion. Right now starting to consider my options. I will use red loctite to secure the reversing feature which does not work as expected. So I'll use my reverse to operate.
I am considering an ER11 or ER16 for this. The shaft is hardened and bored, so its not a good fit for the collet chucks available. I am considering annealing it, turning it, welding a plug in to mount the collet chuck.
I have no experience with the ER11 or 16, looking for opinions, on which way to go. Thinking the 16 would offer me upto 1/2 tapping.. BTW you let go of the ring and it stops tapping, so no need to worry like tapping and waiting for the inertia to stop rotating.
![TappingHead.JPG TappingHead.JPG](https://www.hobby-machinist.com/data/attachments/218/218588-1b1ad90a332019f26462d2e90c547bfc.jpg)
![ER16.jpg ER16.jpg](https://www.hobby-machinist.com/data/attachments/218/218589-c131c9aa356589781101d4bfb7332f5d.jpg)
Anyway, the American unit is big, and does not lend itself well to conversion. Right now starting to consider my options. I will use red loctite to secure the reversing feature which does not work as expected. So I'll use my reverse to operate.
I am considering an ER11 or ER16 for this. The shaft is hardened and bored, so its not a good fit for the collet chucks available. I am considering annealing it, turning it, welding a plug in to mount the collet chuck.
I have no experience with the ER11 or 16, looking for opinions, on which way to go. Thinking the 16 would offer me upto 1/2 tapping.. BTW you let go of the ring and it stops tapping, so no need to worry like tapping and waiting for the inertia to stop rotating.
![TappingHead.JPG TappingHead.JPG](https://www.hobby-machinist.com/data/attachments/218/218588-1b1ad90a332019f26462d2e90c547bfc.jpg)
![ER16.jpg ER16.jpg](https://www.hobby-machinist.com/data/attachments/218/218589-c131c9aa356589781101d4bfb7332f5d.jpg)