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by ppemawm
Mon Sep 09, 2019 6:42 pm
Forum: Users Showcase
Topic: V0.19: Gas Turbine Engine for RC Aircraft
Replies: 4
Views: 992

Re: V0.19: Gas Turbine Engine for RC Aircraft

Could you elaborate on CarbonCopy kicking sketch out of Part container? Sorry for glossing over that. What I should have wrote more precisely is that a copy (Edit>Duplicate selected object) of the CarbonCopy is kicked out of the Part. When I have multiple features that depend on a single master ske...
by ppemawm
Mon Sep 09, 2019 4:41 pm
Forum: Users Showcase
Topic: V0.19: Gas Turbine Engine for RC Aircraft
Replies: 4
Views: 992

V0.19: Gas Turbine Engine for RC Aircraft

This is a small gas turbine engine for use in radio controlled (RC) model aircraft. The engine was designed and developed by Kurt Schreckling in 1992. It is remarkably simple design that can apparently be created using basic machine shop tools by experienced RC hobbyists using readily available mate...
by ppemawm
Tue Aug 27, 2019 11:32 am
Forum: Help on using FreeCAD
Topic: Black screen when selecting objects from a sketch
Replies: 13
Views: 241

Re: Black screen when selecting objects from a sketch

I have the same results: OS: Windows 10 (10.0) Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.19.17877 (Git) Build type: Release Branch: master Hash: 1e19ef5be4735f4200eaf99ce9e487d2be6f4151 Python version: 3.6.8 Qt version: 5.12.1 Coin version: 4.0.0a OCC version: 7.3.0 Locale: Eng...
by ppemawm
Thu Aug 01, 2019 11:40 am
Forum: Help on using FreeCAD
Topic: When should fillets and chamfers be applied: early or late?
Replies: 3
Views: 211

Re: When should fillets and chamfers be applied: early or late?

if a model would not become even more stable if fillets are applied as soon as possible in the modeling process, because all subsequent modeling steps cannot affect the fillets. Since V0.17 I have been applying as many fillets as early as possible in the model tree for the very reason you mention. ...
by ppemawm
Thu Jul 11, 2019 11:56 am
Forum: Open discussion
Topic: Feature request: CarbonCopy should use names for references
Replies: 9
Views: 264

Re: Feature request: CarbonCopy should use names for references

chrisb wrote:
Thu Jul 11, 2019 5:57 am
This would make the model more robust against changes
+1
by ppemawm
Tue Jul 02, 2019 4:06 pm
Forum: Users Showcase
Topic: V0.19: Clayton Steam Wagon--UPDATE #4
Replies: 23
Views: 4355

Re: V0.19: Clayton Steam Wagon--UPDATE #4

All of the internal components of the steam engine are complete including the pistons, connecting rods, valving, and linkages. The cabin is also done so we have a nearly complete model of this fascinating truck with the exception of all the interconnecting piping between the boiler, feedwater heater...
by ppemawm
Thu Jun 20, 2019 3:21 pm
Forum: Users Showcase
Topic: V0.19: Clayton Steam Wagon--UPDATE #4
Replies: 23
Views: 4355

Re: V0.19: Clayton Steam Wagon--UPDATE #3

I have been working on the underslung steam engine that drives the the truck. Completed components include the crankcase housing, steam chest, lubricator, water pump, drive chain, and miscellaneous fittings. The models are shown in the photos below with some minor comments. Note that the engine has ...
by ppemawm
Sun Jun 09, 2019 4:18 pm
Forum: Users Showcase
Topic: V0.19: Clayton Steam Wagon--UPDATE #4
Replies: 23
Views: 4355

Re: V0.19: Clayton Steam Wagon--UPDATE #2

The boiler assembly is now complete including all of the valves, connections, tube bundle, and superheater coils as shown in the following screen grabs with a few comments on the work process: Picture13.jpg . Picture14.jpg . Picture15.jpg . Picture16.jpg . Picture17.jpg . Duplicating CarbonCopy sket...
by ppemawm
Thu Jun 06, 2019 11:29 am
Forum: Users Showcase
Topic: V0.19: Clayton Steam Wagon--UPDATE #4
Replies: 23
Views: 4355

Re: V0.19: Clayton Steam Wagon--UPDATE #1

un1corn wrote:
Thu Jun 06, 2019 6:04 am
H,i I hope you enjoy this project also
Thanks for your comments.
It seems as though we have the same interest in these elegant machines and the challenge of modelling them with FreeCAD.
The models you share on the Forum have always been an inspiration to me.
by ppemawm
Mon Jun 03, 2019 12:53 pm
Forum: Users Showcase
Topic: V0.19: Clayton Steam Wagon--UPDATE #4
Replies: 23
Views: 4355

Re: V0.19: Clayton Steam Wagon--UPDATE #1

I have been working on the components of the boiler such as the water box, feedwater heater, and the boiler assembly as shown in the following screen captures. Much of the boiler is complete except for all the connection fittings and internal tube banks which are currently in process. Picture8.jpg P...

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