Re: Diy brushless spindle
Assembled the spindle last night...well tried to anyway! Found that the Belleville washers don't compress much so you have to be careful how many you use otherwise you load the bearings too much.
Went to assemble it and put the motor bell back on and was putting the last bolt in when I noticed that it was a bit stiff. I bought a pack of 5 off SS 40mm long M4 bolts and on the first assembly used 4 and then obviously used the spare bolt when doing the final assembly. Took the offending bolt out and noticed that the first thread was damaged so I've only gone and flipping cross threaded 1/3 of one of the motor mounting holes grrrrrrr.......got to find my tap now and see if I can re-tap it and clean things up. Failing that I'll drill the cross threaded bits out and just use the rest of the thread with lots of threadlock!!
Will get it up and running tonight and power it from my Trex 500 for a test as I've not got the power supply and ESC for it yet.
Re: Diy brushless spindle
Quote:
Originally Posted by
njhussey
How have you done them?
Look for motor with 1/8" shaft, buy 1/8" shank cutter, replace shaft with cutter...
Re: Diy brushless spindle
Quote:
Originally Posted by
njhussey
I was having a look to see if there was anything out there like a pin vice
Runout
You might be able to do something like drill and ream/bore a 1/8" hole and hold the cutter in with a grubscrw. The force on the cutter will be very small, so it should hold perfectly well.
Re: Diy brushless spindle
Quote:
I was having a look to see if there was anything out there like a pin vice that could be used but thought I'd float the question.
I've scoured the earth looking for a good quality pin vice type thing... it drove me up the wall... i even did a search for ER3 collets lol ... alas... there is no such thing :(
I considered making my own but that is now on my "things to do in the next life list"
give us a shout if you find anything "posh"
i'm pretty sure it would cost a bomb if you find anything of quality out there
its a dam shame
Re: Diy brushless spindle
Looks like ER8 is the smallest:
New Straight Milling Shank C10 ER8 100L Collet Chuck | eBay
The thing to do is have a go at making your own ER8 or ER11 collet chuck.
Quote:
Originally Posted by
njhussey
going down the DIY laser route today. Could make a real lightweight router then ;)
I'd love to see a router made with a laser...