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Author Topic: hol75 Engine model  (Read 2277 times)

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hol75 Engine model
« on: May 19, 2020, 10:52:59 am »
Today, all M12 engine orders have been shipped. Buyers can find shipping information through PAYPAL transaction records.
I want to make a four-cylinder small engine. [ Guests cannot view attachments ] [ Guests cannot view attachments ] [ Guests cannot view attachments ]
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Re: hol75 Engine model
« Reply #1 on: May 19, 2020, 04:25:44 pm »
Now THAT looks like a truly ambitious project!!!
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Re: hol75 Engine model
« Reply #2 on: May 22, 2020, 01:41:01 pm »
I may be interested in one of these depending on the price. A lot more work making one of these engines.
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Re: hol75 Engine model
« Reply #3 on: May 22, 2020, 01:50:10 pm »
Bonjour Jin,
You never stop surprizins us  :)  Also possibly interested  ;)
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Re: hol75 Engine model
« Reply #4 on: May 22, 2020, 04:00:40 pm »
The Holt 75 is a big project
that I hope you can build!


Gil
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Re: hol75 Engine model
« Reply #5 on: May 24, 2020, 10:00:08 am »
My gosh, that sure looks like my engine! The engine, the gas tank with supports, the legs, all mine! When he made the vertical hit and miss it looked like my engine also. Maybe he bought the drawings and is making money from my drawings.
gbritnell
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Re: hol75 Engine model
« Reply #6 on: May 24, 2020, 10:34:38 am »
Here's a screen shot from my Solidworks model. At least he could have changed a few things.
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Re: hol75 Engine model
« Reply #7 on: May 24, 2020, 11:40:36 am »
Quote from: gbritnell on May 24, 2020, 10:00:08 am
My gosh, that sure looks like my engine! The engine, the gas tank with supports, the legs, all mine! When he made the vertical hit and miss it looked like my engine also. Maybe he bought the drawings and is making money from my drawings.
gbritnell
I find this somewhat unclear.
Are you referring to the vender here from Guangon, China ? Or do mean some other manufacturer ?
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Re: hol75 Engine model
« Reply #8 on: May 24, 2020, 12:14:19 pm »
Hi Jasper,
This thread was started by the fellow from China saying that he wants to build a Holt 75 engine presumably to sell. My comment was that it's a direct copy of my engine of which I sell drawings for. I also said that it would be nice if he designed his own engines for sale.
I guess I don't understand your confusion?
gbritnell
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Re: hol75 Engine model
« Reply #9 on: May 24, 2020, 12:25:13 pm »
Quote from: gbritnell on May 24, 2020, 12:14:19 pm
Hi Jasper,
This thread was started by the fellow from China saying that he wants to build a Holt 75 engine presumably to sell. My comment was that it's a direct copy of my engine of which I sell drawings for. I also said that it would be nice if he designed his own engines for sale.
I guess I don't understand your confusion?
gbritnell
Hi gbritnell ,
I find your response to my inquiry to be very succinct and not at all confusing. You appear to be clear, consistent, and to the point.
Do you have a web “link” to your engine drawings for sale that I could view ?
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Re: hol75 Engine model
« Reply #10 on: May 24, 2020, 06:01:30 pm »
Hi Jasper,
I don't have a website. I am member of several of the model engineering forums and have listed the available drawings that I have. The story behind the Holt was that there seemed to be an interest in building the engine but with Coles going out of business no castings or drawings were available. My engine was scratch built and along with that I did a lot of redesigning to improve the functionality of the engine. I decided to make a set of drawings so that it could be made from bar stock. I incorporated all the changes that it needed having built my own.
The drawing set is done with Autocad in Imperial 8-1/2x 11 format. This allows the builder to print them out on a home printer. The set is sold as PDF files. On one of the other forums a fellow is building one right now and documenting the build.
I will send you a PM and give you my email address so that we can talk without going through the forum all the time.
gbritnell
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Re: hol75 Engine model
« Reply #11 on: May 25, 2020, 04:51:33 am »
Quote from: gbritnell on May 24, 2020, 06:01:30 pm
Hi Jasper,
I don't have a website. I am member of several of the model engineering forums and have listed the available drawings that I have. The story behind the Holt was that there seemed to be an interest in building the engine but with Coles going out of business no castings or drawings were available. My engine was scratch built and along with that I did a lot of redesigning to improve the functionality of the engine. I decided to make a set of drawings so that it could be made from bar stock. I incorporated all the changes that it needed having built my own.
The drawing set is done with Autocad in Imperial 8-1/2x 11 format. This allows the builder to print them out on a home printer. The set is sold as PDF files. On one of the other forums a fellow is building one right now and documenting the build.
I will send you a PM and give you my email address so that we can talk without going through the forum all the time.
gbritnell
Hi, first of all, we have never paid for your drawings. We have never contacted you. I do n’t know where to buy drawings.
This is one of my own independently designed engines. This engine is smaller than yours.
Jin
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Re: hol75 Engine model
« Reply #12 on: May 25, 2020, 05:02:59 am »
Quote from: JinMachine on May 25, 2020, 04:51:33 am
Quote from: gbritnell on May 24, 2020, 06:01:30 pm
Hi Jasper,
I don't have a website. I am member of several of the model engineering forums and have listed the available drawings that I have. The story behind the Holt was that there seemed to be an interest in building the engine but with Coles going out of business no castings or drawings were available. My engine was scratch built and along with that I did a lot of redesigning to improve the functionality of the engine. I decided to make a set of drawings so that it could be made from bar stock. I incorporated all the changes that it needed having built my own.
The drawing set is done with Autocad in Imperial 8-1/2x 11 format. This allows the builder to print them out on a home printer. The set is sold as PDF files. On one of the other forums a fellow is building one right now and documenting the build.
I will send you a PM and give you my email address so that we can talk without going through the forum all the time.
gbritnell
Hi, first of all, we have never paid for your drawings. We have never contacted you. I do n’t know where to buy drawings.
This is one of my own independently designed engines. This engine is smaller than yours.
Jin

If your engine is smaller than gbritnells ? How do you know this with out having seen plans
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Re: hol75 Engine model
« Reply #13 on: May 25, 2020, 06:26:20 am »
Quote from: Scorpion2nz on May 25, 2020, 05:02:59 am
Quote from: JinMachine on May 25, 2020, 04:51:33 am
Quote from: gbritnell on May 24, 2020, 06:01:30 pm
Hi Jasper,
I don't have a website. I am member of several of the model engineering forums and have listed the available drawings that I have. The story behind the Holt was that there seemed to be an interest in building the engine but with Coles going out of business no castings or drawings were available. My engine was scratch built and along with that I did a lot of redesigning to improve the functionality of the engine. I decided to make a set of drawings so that it could be made from bar stock. I incorporated all the changes that it needed having built my own.
The drawing set is done with Autocad in Imperial 8-1/2x 11 format. This allows the builder to print them out on a home printer. The set is sold as PDF files. On one of the other forums a fellow is building one right now and documenting the build.
I will send you a PM and give you my email address so that we can talk without going through the forum all the time.
gbritnell
Hi, first of all, we have never paid for your drawings. We have never contacted you. I do n’t know where to buy drawings.
This is one of my own independently designed engines. This engine is smaller than yours.
Jin

If your engine is smaller than gbritnells ? How do you know this with out having seen plans
What a ridiculous thing! What do I need to explain to you so much? I designed it because I like this engine. It has historical significance. I collect a lot of pictures of it. I have the ability to design and complete it independently. And make it.
Jin
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Re: hol75 Engine model
« Reply #14 on: May 25, 2020, 06:34:48 am »
Ok here's a list of identical things on 'your engine'
First and foremost my engine is the only one that has a split crankcase and the one you show has a split line on the crankcase .
The next major copy is the governor to carb linkage. Here again I've never seen another Holt with governor linkage.
The carburetor is my design. The original Holt model carb is nothing like the one you show.
The fan support and mounts to the skid. You're telling me that you just happen to have come up with a design that is 'identical' to mine!
The engine mounts, identical!
The fuel tank location and mount, identical! I'll even go one further, the little bumps on the fuel cap.
The rain flap on the exhaust stack!
I could go on but I think that is sufficient.
You sir are using other people's drawings and designs to make money from without any effort by yourself!
gbritnell
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