Re: I'm casting another cylinder

Josh G /
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Thanks everybody. Doug - I'm going to have it / them professionally plated & honed. I know that nikasil is actually a somewhat simple process on paper, but I know there's finesse in getting it right. Same goes for honing, so I will be working with a Pro on those aspects when we get there.

Here's a bunch of pictures, but a note on process. I read everything, all the books, weirdo Kart / Snowmobile / Jetski / RC Forums , the undisputed 2-Stroke beast designer that is Jan Thiel & his lovely Aprilia RSA engine... and try to reverse engineer existing designs to see what actually works in reality. When In doubt, I crack open Two Stroke Performance Tuning 2nd Edition by A. Graham Bell for cheat sheets.

The first cylinder I made in Seattle was basically a one-shot only art project. Which was dumb, but now I know better. This current design was figured out with math and formulas and copycatting. I drew up a port map, designed the cylinder in 3D, then produced 3D prints of the model with mold registrations already built in. I made silicone RTV molds of the ports (insides) and the cylinder (outsides). The port internals are cast in a sand/plaster mix, assembled then plugged into the mold. The mold is closed up and filled with hot wax. Basically Lost wax process from here on out.

Port Map.jpg
Cylinder dimensions.jpg
Porting Image.jpg
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Subject Written By Posted
  I'm casting another cylinderTopic by: Josh G Josh G 11/12/19 02:50PM
  Re: I'm casting another cylinderRe: Ryan Graeme Ryan Graeme 11/12/19 03:02PM
  Re: I'm casting another cylinderRe: P D P D 11/12/19 05:29PM
  Re: I'm casting another cylinderRe: ᴛᴇʀʀʏ ᴅᴇᴀɴ ᴛᴇʀʀʏ ᴅᴇᴀɴ 11/12/19 03:25PM
  Re: I'm casting another cylinderRe: Jack Rutherford Jack Rutherford 11/12/19 06:13PM
  Re: I'm casting another cylinderRe: P D P D 11/12/19 06:59PM
  Re: I'm casting another cylinderRe: Douglas Binder Douglas Binder 11/13/19 08:50AM
  Re: I'm casting another cylinderRe: scrot rash scrot rash 11/13/19 12:11PM
  Re: I'm casting another cylinderRe: Graham Motzing Graham Motzing 11/13/19 01:05PM
  Re: I'm casting another cylinderRe: Johnnie Distefano Johnnie Distefano 11/13/19 09:30AM
  Re: I'm casting another cylinderRe: Charlie BUZZARD Charlie BUZZARD 11/13/19 12:14PM
  Re: I'm casting another cylinderRe: scrot rash scrot rash 11/13/19 07:56PM
  Re: I'm casting another cylinderRe: Josh G Josh G 11/13/19 02:58PM
  Re: I'm casting another cylinderRe: Douglas Binder Douglas Binder 11/14/19 08:32AM
  Re: I'm casting another cylinderRe: * * * * 11/14/19 05:08PM
  Re: I'm casting another cylinderRe: Douglas Binder Douglas Binder 11/15/19 09:08AM
  Re: I'm casting another cylinderRe: EH FCC of the QCB EH FCC of the QCB 01/02/20 08:41AM
  Re: I'm casting another cylinderRe: Joel P Joel P 01/05/20 02:01PM
  Re: I'm casting another cylinderRe: Josh G Josh G 11/13/19 03:04PM
  Re: I'm casting another cylinderRe: Josh G Josh G 11/13/19 03:07PM
  Re: I'm casting another cylinderRe: Josh G Josh G 11/13/19 03:09PM
  Re: I'm casting another cylinderRe: Josh G Josh G 11/13/19 03:13PM
  Re: I'm casting another cylinderRe: Josh G Josh G 11/13/19 03:15PM
  Re: I'm casting another cylinderRe: * * * * 11/14/19 12:21AM
  Re: I'm casting another cylinderRe: >>>taykoff [s2m] >>>taykoff [s2m] 11/14/19 11:31PM
  Re: I'm casting another cylinderRe: Daniel '' Daniel '' 11/16/19 10:22PM
  Re: I'm casting another cylinderRe: Jesse Stephenson Jesse Stephenson 11/15/19 01:33AM
  Re: I'm casting another cylinderRe: Josh G Josh G 11/18/19 07:49PM
  Re: I'm casting another cylinderRe: ken gilbert ken gilbert 11/19/19 08:23AM
  Re: I'm casting another cylinderRe: Ted Kenny Ted Kenny 01/01/20 04:37PM
  Re: I'm casting another cylinderRe: Overpriced Parts Overpriced Parts 01/01/20 06:57PM
  Re: I'm casting another cylinderRe: Josh G Josh G 01/02/20 01:09PM
  Re: I'm casting another cylinderRe: Matt Mahloch -- MBM Customs Matt Mahloch -- MBM Customs 01/05/20 11:25AM
  Re: I'm casting another cylinderRe: Saabsonettguy . Saabsonettguy . 01/05/20 11:44AM
  Re: I'm casting another cylinderRe: Josh G Josh G 01/06/20 11:44PM
  Re: I'm casting another cylinderRe: Ryan Graeme Ryan Graeme 01/07/20 12:08AM
  Re: I'm casting another cylinderRe: Josh G Josh G 01/08/20 01:07PM
  Re: I'm casting another cylinderRe: ♣Slew Foot♣ ♣Slew Foot♣ 01/08/20 08:15PM
  Re: I'm casting another cylinderRe: ALAN REA ALAN REA 03/10/20 03:02PM
  Re: I'm casting another cylinderRe: Ryan Graeme Ryan Graeme 03/10/20 05:53PM
  Re: I'm casting another cylinderRe: ᴛᴇʀʀʏ ᴅᴇᴀɴ ᴛᴇʀʀʏ ᴅᴇᴀɴ 03/10/20 06:19PM
  Re: I'm casting another cylinderRe: Josh G Josh G 03/10/20 04:33PM
  Re: I'm casting another cylinderRe: Josh G Josh G 03/10/20 06:35PM
  Re: I'm casting another cylinderRe: ALAN REA ALAN REA 03/11/20 02:53PM
  Re: I'm casting another cylinderRe: Josh G Josh G 03/11/20 03:09PM
  Re: I'm casting another cylinderRe: pat splat pat splat 03/11/20 07:34PM
  Re: I'm casting another cylinderRe: Bas Autowas Bas Autowas 03/12/20 09:14AM
  Re: I'm casting another cylinderRe: Daniel '' Daniel '' 03/12/20 04:44PM
  Re: I'm casting another cylinderRe: Dirty30 Dillon Dirty30 Dillon 03/12/20 01:01PM
  Re: I'm casting another cylinderRe: Pritza R&D Pritza R&D 03/12/20 12:36PM
  Re: I'm casting another cylinderRe: Jake P Jake P 03/16/20 01:44PM
  Re: I'm casting another cylinderRe: pat splat pat splat 03/12/20 03:01PM
  Re: I'm casting another cylinderRe: Josh G Josh G 03/16/20 03:00PM

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