Author Topic: Quick-step  (Read 16944 times)

Offline Bjorn_B

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Re: Quick-step
« Reply #60 on: February 17, 2016, 06:39:10 PM »
Small job today.

Drilled and counterbored one of the toolpost adaptors for a pair M6 socket bolts. I do like the versatility of the Granlund countersink system.
20160217_184626 by Bjorn Pettersson, on Flickr

Offline Bjorn_B

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Re: Quick-step
« Reply #61 on: September 07, 2017, 10:02:46 PM »
Hi all.. After not being in the workshop for over a year (life sadly got in the way) I have started fiddling with my gear again and the quick-step is almost done! Belt guard and some electrical tidying up to do...  :zap: (motor is a 24V DC item, run of a power supply)

20170907_194127 by Bjorn Bursell, on Flickr

This the quick-step in action making the handle boss of a GHT retracting top slide, all machining phases could be made in one go in the lathe chuck, only part of to length, tap some threads and insert the ball handle after machining.... boy this is a very nice addition. The Myford is suddenly a multi operations machining centre, albeit manual..

20170907_195034 by Bjorn Bursell, on Flickr
Milling the stop faces (underside of the boss, this would otherwise have been an second ops on the milling machine mounted on a one off made mandrel set up in the dividing head). Before this , the outer face had been turned to diameter a bit overlength and a axial hole has been drilled and bored almost to size. This is milled 3/4 around the boss, so 45 turns on the dividing head. infeed is put on with the cross slide, same as with ordinary turning work so milling to diameter on the boss was a doodle.

20170907_195918 by Bjorn Bursell, on Flickr
Radial drilling of grubscrew hole

20170907_201025 by Bjorn Bursell, on Flickr
Radial drilling at taper angle opposite side to grubscrew hole (topslide used for feed in on this operation) for the handle after some more lathework. After this the central hole was reamed to size and the boss parted of.. Done!

20170907_225108 by Bjorn Bursell, on Flickr
Finished item

20170907_225150 by Bjorn Bursell, on Flickr
Finished item

« Last Edit: September 07, 2017, 10:36:05 PM by Bjorn_B »

Offline Admiral_dk

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Re: Quick-step
« Reply #62 on: September 08, 2017, 11:37:03 AM »
Interesting tool and a nice result with the lever  :ThumbsUp:

Offline vcutajar

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Re: Quick-step
« Reply #63 on: September 08, 2017, 04:08:57 PM »
Hi Bjorn.

Good to see you back.

Vince

Offline Bjorn_B

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Re: Quick-step
« Reply #64 on: September 08, 2017, 04:34:11 PM »
Thanks!

I hope to post things more regular from now on and as the quick-step is more or less done it will pop up in pictures the GHT retracting top slide thread next, I have started making progress on that one again..

I must say that a milling spindle of some sorts speeds up work a lot even this low powered one (just a 90W motor), that boss would have taken at least three times more to do with mandrel making, mounting dividing head on the milling table, alignment work and then figuring out how to set up for the angled hole for the lever...  I rather not think about that, haha

 

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