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Home Model Engine Machinist > Showing Them > A Work In Progress > my attempt at Rupnows imperialized ridders flame eater

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Old 04-11-2018, 06:52 PM   #11
Brian Rupnow
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Bet ya never had so much fun with your clothes on----


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Old 04-12-2018, 02:25 PM   #12
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finished the fins, and parted it off last night. now to make an arbor for it and get it on the rotary table.
and while I'm thinking about it, laps - I have made a few from brass and understand how they work. but brass is expensive, aluminum I would think might be to soft and I was thinking I have some 12L14 leaded steel laying around close to size. what about a lap made of it? its definitely softer than the stainless the cylinder is made of. do you think it will be still to hard to expand properly or it might scratch things up to much?


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Old 04-12-2018, 02:33 PM   #13
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I would stay with an aluminum lap.--Brian
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Old 04-13-2018, 12:32 PM   #14
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Old 04-13-2018, 02:38 PM   #15
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thank you for doing that
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Old 04-14-2018, 12:56 AM   #16
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Following along this build ��
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Old 04-16-2018, 01:04 PM   #17
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not much accomplished in the garage this weekend. tilled, mowed, mulched. great spring weather Saturday. even got a little sunburned. and then back to freezing temps last night.

got the cylinder almost finished honing, will do that last bit after I cut the intake slot in it to help debur it. almost finished the arbor to put it on my rotary table. I hope to have that done tonight. then fun times for me trying to square up the rotary table. that will likely take me an hour or more. I have yet to achieve that trained eye that some seem to have who can sit a vice or rotary table on the slide and have it almost perfect just by eyeballing it. I'm a little tap on this side, then another tap on the other and repeat over and over.
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Old 04-16-2018, 01:09 PM   #18
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Does you rotary table not have the key-slots in the bottom? Any rotary table I've seen has. You simply make a stepped key, half of which into the rotary table base and half of what fits into the slot in your milling table. Use a counterbored shcs to hold the key into the rotary table base permanently. Then you have instant alignment every time you set the rotary table on your mill.
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Old 04-16-2018, 02:08 PM   #19
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it does for verticle (rotary table laying on its back flat with face pointing up but not horizontal.
and on the verticle it only has a place for 1 key on 1 end of it thus it still wiggles to much. I will double check that tonight to make sure its not just missing a key. but if memory serves there is only 1 place. and on vertical also, there is only 1 bolt hole to mount it down which annoys me as well, horizontal you have 2 holes 1 on each side.

I wish it were like my compound for my lathe bits. keyed on both ends.
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Old 04-17-2018, 01:26 PM   #20
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heres all I got done last night. arbor complete and a washer for the end.

hopefully some cleanup tomorrow. things are getting nasty


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