Sounds like a nice project! Getting the face and taper contact relationship correct sounds challenging. Maybe you already know but backplates for D-style spindles are widely available pre-machined to correct spec if you want to save the hassle.

Awesome! Thank you!

@@ED_T You're very welcome, and I see that you have other tool builds on your channel. Let me know if you want a free forum membership (usually $69/year) and you can post them on the forum to help grow your channel. We have many YTers doing the same.

@@homemadetools Thank you for the offer, I'm currently not active on any metalworking/DIY forums. I feel the membership would go unused so I'll respectfully decline. Again, thank you for the offer. Have a nice day!

Thank you! Some of the best tools you are given at birth 😁

Thanks for watching!

Thank you Dave! Had to do my best considering the material I ended up with here 😁

Thanks for watching!

Thanks for watching!

Thanks!

Good question, I kind of brute forced my way through this one. It works but the slot depth was not critical since the key is bolted into the spindle. I don't think I have and end mill that long in that diameter or smaller. It would have been better to use a larger bar with a HSS toolbit mounted to have a stiffer slotting action and a tool with more relief behind the cutting edge. I could have also made a narrower slotting tool reducing the cutting force and just step over to get to the size. All lessons for next time :)

The gauge is double sided, one half is for metric threads, the other half is for 55° pipe threads. I was using a leaf from the 55° pipe thread side. 6 TPI happens to be one of the pitches used in pipe threads. The threading tool has a 60° angle to form the correct thread profile. It's not a pipe or Witworth thread so it's not 55°. On my machine the the gears and gear selectors to cut in 6 TPI need to be as follows: Gears from the spindle to the gearbox: A:40 teeth B:45 teeth C:40 teeth D:60 teeth E:63 teeth Gears B and C are on the same shaft, gear A meshes with B and C meshes with D There are 5 gearbox selector knobs, if your sheet is gone I will tell you the positions of each knob from left to right: Knob 1: Neutral position (middle) Knob 2: Left position (counter clockwise) Knob 3: Neutral position (middle) Knob 4: Right position (clockwise) Knob 5: Right position (clockwise, this is the threading or feeding selector) You can contact me on Instagram @ed_and_t if you want a detailed image of the whole sheet

I haven't planned a specific video about it because I made it before starting to make videos. Sounds like a fun idea though. If you want to know specific things about it you can always ask.

@@ED_T I just want a general overview how it is built, how it works, what parts were used etc

I'll try to show it in more detail in the next video when I use it

Yeah I was pretty surprised at the amount of porosity. The previous backplate I made out of a casting for a DIN 800 spindle adapter had much less porosity. Maybe I’ll make the next one from steel.

I’ll stick with cast iron, but I do need to find better quality material

Tough way to make a keyway! Otherwise excellent!

I don’t have any kind of slotting machine, so this will have to do