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Old 06-28-2004, 11:31 AM   #1
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Default Some questions on how to operate a comm lathe

Just got the hudy tech lathe and this is my first time using a comm lathe. When you put the comm on the v blocks, do you need to remove all the motor spacers on the comm or do you just leave them there? How tight should the sliding v block rest against the comm?

Thanks.
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Old 06-28-2004, 11:35 AM   #2
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You can set it up to where you can use the shims, or so that youd have to take them off, it's adjustable. I set mine up so that it doesnt use shims, and has very little play. When I cut I push lightly on the comm side of the armature shaft so that it wont wobble as I make my pass.
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Old 06-28-2004, 08:17 PM   #3
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Ditto.
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Old 06-28-2004, 11:33 PM   #4
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Need help on hudy tech lathe too.

if you unscre the Vblock to make adjustment for the arm. what is the good way to ensure that both Vblocks is parallel to each others and also perpendicular to the main block. This is to ensure that the final cut will not be corn shape.

thank you in advance
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Old 06-29-2004, 03:41 AM   #5
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Howdy! need a little help here too. I'm new to this lathe thingy.....just bought one and this machine has no instructions what so ever. The trouble is there is a bit and some spacers. The question is.....how many spacers must I put ?

Thanks to all da gurus.
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Old 06-29-2004, 04:26 AM   #6
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it depends on the models and who ya ask some pages back are discussion about cutting comm with good diagrams
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Old 06-29-2004, 07:46 PM   #7
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Quote:
Originally posted by X9er
if you unscre the Vblock to make adjustment for the arm. what is the good way to ensure that both Vblocks is parallel to each others and also perpendicular to the main block. This is to ensure that the final cut will not be corn shape.
Keep a right-angle protractor & ruler with the Hudy case...

When I reset my blocks, I measure the distance between the 2 and use the right-edge to check that its square against the bulkhead.

I try not to adjust the blocks too much, I've fixed them to fit most of my arms. The looser arms just use a washer/s to shim the freeplay; its quicker than readjusting & measuring.



Measure your comm with good calipers across the straight surface and it'll show up if you've cut it cone-shaped.
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Old 06-29-2004, 07:55 PM   #8
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Hudy Instructions (PDF)
Attached Files
File Type: pdf hudy_advanced_comm_lathe.pdf (200.8 KB, 195 views)
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Old 06-29-2004, 08:03 PM   #9
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Quote:
Originally posted by KoE
it depends on the models and who ya ask some pages back are discussion about cutting comm with good diagrams
I've just got a 3-racing lathe.....comes with no instructions....blasted jets %&*@@@# and he just giggle and laugh.
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Old 06-29-2004, 08:03 PM   #10
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Quote:
Originally posted by WC
Hudy Instructions (PDF)
Thanks mate .... though it is Hudy's instructions but it is very helpful .
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Old 06-29-2004, 09:05 PM   #11
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practice with an old arm. do not try cutting your best motor till you feel you understand the lathe. see if anyone at your track will help you get started. motor speed is important also.
i always use a washer on the comm side. when cutting i put slight pressure on the opposite side. use a little oil on the v-block also.
my final cut i use a small drop oh WD40. i like it better than the marker.
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