Yeah, thatâs kinda how I got it to that point. Thinners and a tooth brush, of course, the thinners ate the tooth brush :person_facepalming: :laughing: . Was a bit of a pita but with a bit more clean-up I hope it comes up like the tube.
I bought three brushes like tooth brushes from the $2.00 shop. Same thing sold in SuperCheap and Repco for $15.00 to $25.00. Theres a nylon, copper, brass and I think stainless one. The stainless one works well on knurling.
Nice saves. If you didnât think of things youâd do differently you werenât learning. Half the pleasure is figuring stuff out and seeing positive results.
Hi, it looks really awesome! And the knurling is amazing.
Just a tip for working with copper, make sure the cutting tool is always wet with lubricant. You really have to drown it. Youâll need a lot of lubricant and the cheapest and best solution I found was rapeseed oil applied with a syringe. If you havenât used lots of lubricant already, you should really try it! Itâs a difference like day and night.
Yeh, figuring stuff is good. I hope I can retain the info for next time I do similar things on the lathe.
Thanks freeme
Yeh, I have noticed how lube makes a difference. Iâll give rapeseed a go, thanks. I recently ran out of the stuff Iâve been using (Trefolex CDT) and used CRC since thatâs what I had. I also have a bottle of Rocol RTD but I find it easier to use a spray so I can direct the oil where itâs needed. I can understand the use of a syringe for the same reason. Maybe one day Iâll set up a gravity drip feed and drip tray for the RTD.
Some copper is gummy and will grab the tool edge when drilling, same thing happens with acrylic plastics. i dull the cutting edge with a stone to solve this. Here are some additional tips for machining copper: copper tips
The dulling of the tool bits only really come into play when using carbide inserts or carbide tipped tools. It wonât help with a HSS tool. And itâs not really dulling it so to speak just take a stone and barely break the sharp edge.
Are you sure this applies to copper? I have read that the tools should be as sharp as possible, otherwise the copper starts to âsmearâ all over the place due to the rubbery consistency. I also experienced the same thing.
With brass however, it is common to dull up the tools so the tool doesnât get sucked into the material.
I go to a local place called Robert-Cameron. They are one of the few places here that stock a lot of odd materials and odd sizes not just the common ones. I might pay slightly less if I find it online but then I would have to wait for delivery :weary:
I got some work done on the switch. Itâs kinda big and doesnât mesh well with the head but oh well, add it to the list of âbetter ways of doing itâ.
I lathed up a hole punch to make the right size rubber boot
I also cut a foam packer to stop the batteries rattling since there is no spring in the rear.
I fitted the electronics tonight. My mind wasnât in the right headspace when reflowing the leds so it was a bit messy. I displaced a dome with tweezers on one of the leds, iâm considering dedoming all of them. I also couldnât figure out why it wouldnât turn on when I was finished so after some head scratching found I missed a solder jumper on the driver for 2s. So it is functional and iâll tweak it here and there a bit.